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Home > Products > Oil well drilling fluid & Mud > Gilsonite


What is Gilsonite?

Gilsonite is a natural, resinous hydrocarbon. This natural asphalt is similar to hard petroleum asphalt and is often called a natural asphalt, asphaltite, uintaite, or asphaltum. Gilsonite is soluble in aromatic and aliphatic solvents, as well as petroleum asphalt. Due to its unique compatibility, Gilsonite is frequently used to harden softer petroleum products. Gilsonite in mass is a shiny, black substance similar in appearance to the mineral obsidian. It is brittle and can be easily crushed into a dark brown powder.
Gilsonite is found below the earth's surface in vertical veins or seams that are generally between two and six feet in width, but can be as wide as 28 feet. The veins are nearly parallel to each other and are oriented in a northwest to southeast direction. They extend many miles in length and as deep as 1500 feet. The vein will show up on the surface as a thin outcropping and gradually widen as it goes deeper. Due to the narrow mining face, Gilsonite is mined today, much like it was 50 or 100 years ago. The primary difference is that modern miners use pneumatic chipping hammers and mechanical hoists.

Gilsonite History & General Information

The mineral now know as Gilsonite was discovered in the early 1860's, but it was not until the mid-1880's that Samuel H. Gilson began to promote it as a waterproof coating for wooden pilings, as an insulation for wire cable, and as a unique varnish. Gilson's promotion of the ore was so successful that, in 1888, he and a partner formed the first company to mine and market Gilsonite on a commercial scale.
Originally, Gilsonite was sold as "Selects" and "Fines"; the law softening point ore with conchoidal fracture was known as "Selects". The higher softening point ore with a pencillated structure was known as "Fines". Selects commanded a higher price than Fines because of its better purity, good solubility, and usefulness in the paint, stain, and varnish industries.
Time and technology have changed this classification system. Processing of Gilsonite now removes most of the inert contaminants and newer, more powerful, solvents make the higher softening point grades more interesting to the user. Today, Gilsonite is graded by softening point (a rough measure of solubility) and particle size. All grades carry a degree of quality far superior to those first small amounts of crude Gilsonite marketed in the 1880's.

Gilsonite Technical Information

The information in these pages is based on laboratory evaluation and field experience. It is correct to the best of our knowledge. Recommendations are made without warranty or guarantee and buyer assumes all risk and liability.

Natural asphalt with gilsonite

asphalt is mixing of 1/3 gilsonite(the ash from 19% up to 25 % ) & 2/3 bitumen , gilsonite will help to asphalt more elasticity.the method use in India & Pakistan .

Gilsonite Packaging

All grades of Gilsonite are available in various types of packaging:
1. 1 Ton Jumbo bags
2. 25kg package for powder

Gilsonite Chemical Properties and Analyses

Carbon 84.9 % , Ash < 10%

Gilsonite is included in a class of solid bitumens known as asphaltites. The Giolsonite deposites in Iran are different from other asphaltites because of their:
1. High asphaltene content
2. high solubility in organic solvents
3. high purity and consistent properties
4. high molecular weight
5. high nitrogen content


Gilsonite Molecular Structure

A variety of sophisticated analytical tests have been run on Gilsonite to characterize its unique properties. For reference, the test methods include vacuum thermal gravimetric analysis (TGA), nuclear magnetic resonance (NMR), Fourier transform infrared spectrometry (FTIR), vapor pressure osometry (VPO), high performance liquid chromatography (HPLC), rapid capillary gas chromatography (RCAP), and several fractionation techniques. H/C ratios and NMR analysis indicate the presence of a significant aromatic fraction. Most of the aromatics exist in stable, conjugated systems, probably porphyrin-like structures that relate to the geologic source of the product. The remainder of the product consists of long, paraffinic chains.
A very unique feature of Gilsonite is its high nitrogen content, which is present mainly as pyrrole, pyridine, and amide functional groups. Phenolic and carbonyl groups are also present. The law oxygen content relative to nitrogen suggests that much of the nitrogen has basic functionality. This probably accounts for Gilsonite's special surface wetting properties and resistance to free radical oxidation.
The average molecular weight of Gilsonite is about 3000. This is very high relative to other asphalt products and to most synthetic resins. This may relate to Gilsonite's "semi-polymeric" behavior when used as a modifying resin in polymeric and elastomeric systems. There is some reactive potential in Gilsonite. Crosslinking and addition type reactions have been observed. Gilsonite is known to react with formaldehyde compounds under certain conditions.

Gilsonite Compatibility

Gilsonite is compatible with Microcrystalline and Paraffin Waxes, Petroleum Resins and Oils, Rosins, Tall Oil Pitch, Vegetable Oils (Linseed, Soya, etc.), Petroleum Process Oils, and Petroleum Asphalts.

Gilsonite Compatibility with Commercial Resins

The following is a general guide to the compatibility of Gilsonite resin in common film-forming and elastomeric systems. Because Gilsonite compatibility can be influenced by variations within a resin/elastomer class and by other components in a formulation, it is good practice to verify Gilsonite compatibility in the specific formula of interest.

Gilsonite Solutions

Gilsonite is an important component of today's printing inks, paints & industrial coatings. Gilsonite is used as a hard resin and carbon black dispersant in a variety of coatings. Solutions of Gilsonite (sometimes called cutbacks or varnishes) are an excellent starting point for blending Gilsonite with other components of a final product formulation. Some formulators convert dry Gilsonite into liquid solution in their own facilities. Others will request a pre-made solution.
Converting dry, granular Gilsonite to a liquid solution also provides the opportunity to remove the small amount of abrasive grit that occurs in natural asphaltums. Stabilizing additives can also be added if a poor solvent is used or if high concentrations of Gilsonite are desired.
• Solubility: Gilsonite is soluble in aliphatic, aromatic and chlorinated hydrocarbon solvents. It has limited solubility in most ketones, but is soluble in mixed aromatic solvents that contain a ketone component. Gilsonite is not soluble in water, alcohols, or acetone.
Solution Preparation: Three basic procedures are used to dissolve Gilsonite. In each case, precautions for flammable materials should be used.
• Cold-cutting: Gilsonite is generally soluble in aliphatic and aromatic solvents at ambient temperatures. Some agitation should be used. The rate of solution will depend on the type of solvent, the type and severity of mixing, and the grade of Gilsonite. The solution rate can be increased by using a high shear mixer, such as a Cowles disperser. When a ball mill or a paddle mixer is used, lump grade Gilsonite is recommended. When high energy mixing is available, either lump or pulverized grades may be used. Care must be taken to avoid "dry balls" of undissolved solid when using pulverized grades.
• Hot-cutting: The rate of solution can be increased by heating. Steam coils or hot oil is preferred. Direct-fired heating can be hazardous. Care must be taken to avoid or make up for vaporized solvent. Facilities for solvent containment are often necessary. The maximum processing temperature will depend on the boiling range of the solvent.
• Hot fluxing: Gilsonite can be hot fluxed into asphalts and high boiling oils. Once blended, the combination can then be let down with a solvent to reach the desired viscosity. This hot fluxing with another product can help overcome limitations of solubility. Selecting the correct blend or co-solvent can yield compatibility with a solvent that is normally of limited solubility.
Hot Fluxing Procedure: Heat the oil to 200°F or more. Most of the high boiling, law aromatic ink oils in use today will require a temperature of at least 300-330°F. With good agitation, add dry Gilsonite at a rate that maintains constant dispersion of the particles until they dissolve. Be alert for foaming that can be caused by traces of moisture in the Gilsonite. Continue to agitate for 15 to 30 minutes beyond the point when the last of the Gilsonite particles is detected. The Gilsonite should now be completely dissolved and the solution ready for discharge.
Filtration: The varnish must be filtered to remove the grit that is a natural component of Gilsonite. There are two common filtration methods. Each provides a different degree of cleanliness. Both methods are normally preceded by passing the hot varnish through a course wire screen (approx. 1/4") to remove any large stones.
For a normal degree of cleanliness, the prescreened, hot varnish is passed through wire screen baskets of about 200 mesh (74 microns). Cloth bag filters can also be used, at a higher cost, when the company doesn’t have the personnel to clean the wire baskets. Disposal of the bags is also a consideration. Be careful to use bags that can tolerate elevated temperatures if hot cutting is performed.
For extra cleanliness, the prescreened, hot varnish is passed through cartridge filters of about 5 to 25 microns. These filters are also disposable.
• Viscosity Modification: Some Gilsonite solutions can be quite viscous at ambient temperature. Also, some solutions can steadily increase in viscosity over time. These characteristics are usually observed when using law aromatic oils with poor solvent power or when high percentages of Gilsonite are used. In these cases, small amounts of viscosity modifiers are often added to (1) keep the hot varnish sufficiently fluid for easy filtration and (2) to reduce and stabilize the ambient viscosity so the solution remains fluid until it is used.
The following is a partial list of modifiers that are effective at stabilizing the viscosity of Gilsonite solutions.
1. Soft asphalt flux. This is often substituted for 15 to 20 % of the Gilsonite in the varnish. At this level, it reduces the softening point of the Gilsonite by about 30°F. It should not be used when maximum hardness and rub resistance is desired, or when fast solvent release is required, or when restrictive health safety regulations are in effect.
2. Tridecyl alcohol (TDA). More volatile than some modifiers (a flash point of 180°F), but effective. Generally used at 3-10%, based on the Gilsonite content.
3. Low molecular weight alcohols. Examples are n-propanol and n-butanol. These are effective, but their high volatility usually restricts their use to fast drying systems or products that are stored and used at ambient temperature.
4. Tall oil fatty acids. These are mainly oleic and linoleic acids with small amounts of rosin acids present. They are used for their high flash point and law volatility. In some cases, stearic or oleic acid, or vegetable oils such as linseed or soya bean oil, can be substituted for tall oil fatty acids with comparable performance.
5. Surfactants. A wide variety of commercial surfactants are also effective. Care must be taken to avoid any undesirable side effects on the performance of the final product.

Gilsonite is safe to use!

Gilsonite has excellent health safety characteristics. Gilsonite products are non- carcinogenic, non-mutagenic, and non-toxic.
Health safety has become a most important factor in the selection of resinous products. More restrictive regulations Worldwide now make it necessary to label products that contain resins with poor or marginal health safety properties. Certain resins and bituminous fractions that are derived from petroleum and coal now can only be used with proper hazard labeling. Gilsonite is a valuable, no-label, alternative to these hazardous products.

Consumption Usage

Gilsonite, or North American Asphaltum is a natural, resinous hydrocarbon found in the Uintah Basin in northeastern Utah. This natural asphalt is similar to a hard petroleum asphalt and is often called a natural asphalt, asphaltite, uintaite, or asphaltum. Gilsonite is soluble in aromatic and aliphatic solvents, as well as petroleum asphalt. Due to its unique compatibility, Gilsonite is frequently used to harden softer petroleum products. Gilsonite in mass is a shiny, black substance similar in appearance to the mineral obsidian. It is brittle and can be easily crushed into a dark brown powder.
When added to asphalt cement or hot mix asphalt in production, Gilsonite HMA Modifier helps produce paving mixes of dramatically increased stability.
1. Asphalt and Road Paving Sector
For many years, Gilsonite has been used in the oilfield as an additive in drilling fluids. Gilsonite, in various grades and formulations, has been used to combat borehole instability problems, provide lubricity, especially in highly deviated holes, and more recently as a bridging agent to combat differential pressure sticking and provide a law invasion coring fluid. It has been well documented that appropriately formulated Gilsonite products can minimize hole collapse in formations containing water-sensitive, sloughing shales and reduce stuck pipe problems by forming a thin wall cake and an inter-matrix filter cake.
Gilsonite products are currently being widely used in water based, oil based, and synthetic based mud systems worldwide. Blended Gilsonite has proved to be very effective in all water-based systems, with the flagship product in this line being Bore-Plate(R) Shale Stabilizer.
2. Oil Sector
Gilsonite is used in drilling mud fluids and oil well cementing. Gilsonite, in a range of softening points and particle sizes, is a standard ingredient in oil-based drilling muds used in shales and other difficult geological formations. The addition of specially-treated Gilsonite to water-based drilling fluids helps minimize hole washout by stabilizing troublesome shales, and seals off highly permeable sands while reducing torque and drag. The addition of Gilsonite to oil well cements reduces slurry weight without loss of compressive strength and acts as an effective bridging and plugging agent to seal fractures in weak formations while cementing
3. Asphalt and Road Paving Sector
Gilsonite is used as a performance-enhancing agent for asphalt mixes. Gilsonite-modified paving mixes achieve higher PG grades and incorporate perfectly into the asphalt blend with no need for high shear milling as is the case with many other modifiers. Gilsonite-modified asphalts have higher stability, reduced deformation, reduced temperature susceptibility and increased resistance to water stripping than non-modified asphalts. Gilsonite is also used to make both solvent-based and emulsion pavement sealers with superior appearance and weathering properties.
4. Foundry Sector
Gilsonite is combined with coal and other ingredients as an additive in foundry sands to insure the quality of the molded part by improving mold release and the overall finish of metal castings.
5. Chemical Products Sector
Gilsonite combines with many other chemicals and materials that take advantage of its unique physical and chemical properties. Binder and coating applications in metallurgical, wood product, refractary and other industries further demonstrate the versatility and usefulness of this remarkable material.
6. Inks and Paints Sector
Iranian Gilsonite Resin is widely used as the primary carbon black wetting agent for black news inks and heatset and gravure inks. Iranian Gilsonite Resin competes advantageously with petroleum-based hydrocarbon resins, phenolic resins and metal resinates, all of which it can complement or replace to various degrees. Various concentrations of Iranian Gilsonite Resin are used to manufacture law-rub-off news inks with superior gloss and tack properties. Special grades of Gilsonite called Selects are also standard ingredients in black ink formulations and are used as additives in asphaltic paints and varnishes.

Is “FRS Gilsonite” (=Natural asphalt or Asphaltum) Soluble?”

Is “FRS Gilsonite” (=Natural asphalt or Asphaltum) Soluble?” “FRS Gilsonite” (Natural asphalt) is not soluble in water, alcohols, or acetones. “FRS Gilsonite” is soluble in a chlorinated, cyclic and aromatic hydrocarbon solvent. It is surrounded solubility in most alkanones, however is soluble in mixed aromatic solvents which contain an organic compound element. For dissolving “FRS Gilsonite”, there are 3 procedures that we have to make preparation for, as following: Note: In each step, precautions for flammable materials must be certainly considered. 1) Cold-cutting: “FRS Gilsonite” is mostly soluble in fatty and aromatic solvents at ambient temperatures. Some shaking must be used. The rate of solution depends on the type of solvent, the grade of “FRS Gilsonite”, and also severity of blending. The solution rate is increased by employing a high shear mixer, i.e. a Cowles disperser. Once a ball mill or a paddle mixer is applied, lump grade “FRS Gilsonite” is suggested. Once a high energy combination is accessible, either lump or fine grades are also used. Care must be taken to avoid "dry balls" of unmelted solid once using pulverized grades. 2) Hot-cutting: the rate of solution is redoubled by heating. Steam coils or hot oil is most popular. Direct-fired heating is willing to take risks. Strong care and attention must be taken to avoid or make up for gaseous solvent. Facilities for solvent containment are usually necessary. The maximum process temperature depends on the boiling variety of the solvent. 3) Hot melting: “FRS Gilsonite” is hot melted into asphalts and high boiling oils. Once compound d, the mixture will then be let down with a solvent to succeed in the desired stability. This hot melting with another product will facilitate overcome limitations of solubility. Choosing the right mix or co-solvent will cause compatibility with a solvent that is ordinarily of restricted solubility.

Gilsonite packing

packing in jumbo bag

Gilsonite packing

Gilsonite packing

MSDS Gilsonite

10683 - GILSONITE MATERIAL SAFETY DATA SHEET GILSONITE 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION TRADE NAME: GILSONITE APPLICATIONS: Oil well drilling fluid additive. Fluid Loss reducer EMERGENCY TELEPHONE: +989121060086 SUPPLIER: Farzin Rock Stone Company.. #3- No.27- East Sarv St. - Sa’adat-Abad Ave. – Tehran- Iran- P.C: 1998653788 2. COMPOSITION, INFORMATION ON INGREDIENTS INGREDIENT NAME: CAS No.: CONTENTS: EPA RQ: TPQ: Gilsonite 12002-43-6 100 % COMPOSITION COMMENTS: The National Institute for Occupational Safety and Health (NIOSH) was unable to detect polynuclear aromatic Hydrocarbons in Gilsonite. 3. HAZARDS IDENTIFICATION EMERGENCY OVERVIEW: CAUTION! MAY CAUSE EYE, SKIN AND RESPIRATORY TRACT IRRITATION. Avoid contact with eyes, skinand clothing. Avoid breathing airborne product. Keep container closed. Use with adequate ventilation. Wash thoroughly after handling. This product is a/an black powder. A nuisance dust. May form explosive dust-air mixtures. Slippery when wet. Dike and contain spills. Keep out of sewers and waterways. No significant immediate hazards for emergency response personnel are known. ACUTE EFFECTS: HEALTH HAZARDS, GENERAL: Particulates may cause mechanical irritation to the eyes, nose, throat and lungs. Particulate inhalation may lead to pulmonary fibrosis, chronic bronchitis, emphysema and bronchial asthma. Dermatitis and asthma may result from short contact periods. INHALATION: May be irritating to the respiratory tract if inhaled. INGESTION: May cause gastric distress, nausea and vomiting if ingested. SKIN: May be irritating to the skin. EYES: May be irritating to the eyes. 1 / 6 CHRONIC EFFECTS: CARCINOGENICITY: IARC: Not listed. OSHA: Not regulated. NTP: Not listed. ROUTE OF ENTRY: Inhalation. Skin and/or eye contact. TARGET ORGANS: Respiratory system, lungs. Skin. Eyes. 4. FIRST AID MEASURES GENERAL: Persons seeking medical attention should carry a copy of this MSDS with them. INHALATION: Move the exposed person to fresh air at once. Perform artificial respiration if breathing has stopped. Get medical attention. INGESTION: Drink a couple of glasses water or milk. Do NOT induce vomiting unless directed to do so by a physician. Never give anything by mouth to an unconscious person. Get medical attention. SKIN: Wash skin thoroughly with soap and water. Remove contaminated clothing. Get medical attention if any discomfort continues. EYES: Promptly wash eyes with lots of water while lifting the eye lids. Continue to rinse for at least 15 minutes. Get medical attention if any discomfort continues. 5. FIRE FIGHTING MEASURES FLASH POINT (°F): 599 METHOD: Cd OC (Cleveland open cup). AUTO IGNITION TEMP. (°F): N/D FLAMMABILITY LIMIT - LOWER(%): N/D FLAMMABILITY LIMIT - UPPER(%): N/D EXTINGUISHING MEDIA: Carbon dioxide (CO2). Dry chemicals. Foam. Water spray, fog or mist. SPECIAL FIRE FIGHTING PROCEDURES: Wear positive-pressure, self-contained breathing apparatus (SCBA) and protective fire fighting clothing (including fire fighting helmet, coat, pants, boots, and gloves). If protective equipment is not available or not used, fight fire from a protected location or safe distance. UNUSUAL FIRE & EXPLOSION HAZARDS: Dust in high concentrations may form explosive mixtures with air. HAZARDOUS COMBUSTION PRODUCTS: Irritating gases/vapors/fumes. Oxides of: Carbon. and Nitrogen. 6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS: Wear proper personal protective equipment (see MSDS Section 8). SPILL CLEAN-UP PROCEDURES: Avoid generating and spreading of dust. Shovel into dry containers. Cover and move the containers. Flush the area with water. Do not contaminate drainage or waterways. Repackage or recycle if possible. 10683 - GILSONITE 2 / 6 7. HANDLING AND STORAGE HANDLING PRECAUTIONS: Avoid handling causing generation of dust. Wear full protective clothing for prolonged exposure and/or high concentrations. Eye wash and emergency shower must be available at the work place. Wash hands often and change clothing when needed. Provide good ventilation. Mechanical ventilation or local exhaust ventilation is required. STORAGE PRECAUTIONS: Store at moderate temperatures in dry, well ventilated area. Keep in original container. 8. EXPOSURE CONTROLS, PERSONAL PROTECTION OSHA PEL: ACGIH TLV: OTHER: INGREDIENT NAME: CAS No.: TWA: STEL: TWA: STEL: TWA: STEL: UNITS: Gilsonite 12002-43-6 5 3 mg/m3 resp.dust INGREDIENT COMMENTS: No exposure limits noted for ingredient(s). Exposure limits are for Particulates Not Otherwise Classified (PNOC). PROTECTIVE EQUIPMENT: ENGINEERING CONTROLS: Use appropriate engineering controls such as, exhaust ventilation and process enclosure, to reduce air contamination and keep worker exposure below the applicable limits. VENTILATION: Supply natural or mechanical ventilation adequate to exhaust airborne product and keep exposures below the applicable limits. RESPIRATORS: Use at least a NIOSH-approved N95 half-mask disposable or reuseable particulate respirator. In work environments containing oil mist/aerosol use at least a NIOSH-approved P95 half-mask disposable or reuseable particulate respirator. PROTECTIVE GLOVES: Use suitable protective gloves if risk of skin contact. EYE PROTECTION: Wear dust resistant safety goggles where there is danger of eye contact. PROTECTIVE CLOTHING: Wear appropriate clothing to prevent repeated or prolonged skin contact. HYGIENIC WORK PRACTICES: Wash promptly with soap and water if skin becomes contaminated. Change work clothing daily if there is any possibility of contamination. 9. PHYSICAL AND CHEMICAL PROPERTIES APPEARANCE/PHYSICAL STATE: Powder, dust. COLOR: Black. ODOR: Hydrocarbon. SOLUBILITY DESCRIPTION: Insoluble in water. MELT./FREEZ. POINT (°F, interval): 275 - 399 DENSITY/SPECIFIC GRAVITY (g/ml): 1.04 - 1.05 TEMPERATURE (°F): 61 10683 - GILSONITE 3 / 6 VAPOR DENSITY (air=1): N/A VAPOR PRESSURE: N/A TEMPERATURE (°F): pH-VALUE, DILUTED SOLUTION: N/A CONCENTRATION (%,M): 10. STABILITY AND REACTIVITY STABILITY: Normally stable. CONDITIONS TO AVOID: Avoid heat. HAZARDOUS POLYMERIZATION: Will not polymerize. POLYMERIZATION DESCRIPTION: Not relevant. MATERIALS TO AVOID: Strong oxidizing agents. HAZARDOUS DECOMPOSITION PRODUCTS: No specific hazardous decomposition products noted. 11. TOXICOLOGICAL INFORMATION TOXICOLOGICAL INFORMATION: No significant health effects were observed in a chronic feeding study conducted for the National Toxicology Program (NTP) where mice and rats were fed diets containing either 2% or 4% Gilsonite for their lifetimes.In another study, 10% Gilsonite in benzene applied 3 times a week for 80 weeks to the skin of mice caused no increase inskin cancer over what was observed in the control group. Gilsonite distilled at approximately 2500 F and dissolved inbenzene was a carcinogenic when applied 3 times a week for 80 weeks to the skin of mice. Although Gilsonite is not a carcinogen, processes in which Gilsonite is brought to very high temperatures may alter its complex hydrocarbon structure and may produce carcinogenic substances.A sample of Gilsonite heated to 550 F and cooled was not found to be mutagenic in the Ames assay. A sample heated to 650 F and allowed to cool was found to be mutagenic. 12. ECOLOGICAL INFORMATION ECOLOGICAL INFORMATION: Contact M-I Environmental Affairs for ecological information. 13. DISPOSAL CONSIDERATIONS WASTE MANAGEMENT: This product does not meet the criteria of a hazardous waste if discarded in its purchased form. Under RCRA, it is the responsibility of the user of the product to determine at the time of disposal, whether the product meets RCRA criteria for hazardous waste. This is because product uses, transformations, mixtures, processes, etc, may render the resulting materials hazardous. Empty containers retain residues. All labeled precautions must be observed. DISPOSAL METHODS: Recover and reclaim or recycle, if practical. Should this product become a waste, dispose of in a permitted industrial landfill. Ensure that containers are empty by RCRA criteria prior to disposal in a permitted industrial landfill. 10683 - GILSONITE 4 / 6 14. TRANSPORT INFORMATION PRODUCT RQ: N/A U.S. DOT: U.S. DOT CLASS: Not regulated. CANADIAN TRANSPORT: TDGR CLASS: Not regulated. SEA TRANSPORT: IMDG CLASS: Not regulated. AIR TRANSPORT: ICAO CLASS: Not regulated. 15. REGULATORY INFORMATION REGULATORY STATUS OF INGREDIENTS: NAME: CAS No: TSCA: CERCLA: SARA 302: SARA 313: DSL(CAN): Gilsonite 12002-43-6 Yes No No No Yes US FEDERAL REGULATIONS: WASTE CLASSIFICATION: Not a hazardous waste by U.S. RCRA criteria. See Section 13. REGULATORY STATUS: This Product or its components, if a mixture, is subject to following regulations (Not meant to be all inclusive - selected regulations represented): SECTION 313: This product does not contain toxic chemical subject to the reporting Requirements of Section 313 of Title III of the Superfund Amendment and Reauthorization Act of 1986 and 40 CFR Part 372. SARA 311 Categories: 1: Immediate (Acute) Health Effects. The components of this product are listed on or are exempt from the following international chemical registries: TSCA (U.S.) STATE REGULATIONS: STATE REGULATORY STATUS: This product or its components, if a mixture, is subject to following regulations (Not meant to Be all inclusive - selected regulations represented):. None. PROPOSITION 65: This product does not contain chemicals considered by the State of California's Safe Drinking Water and Toxic Enforcement Act of 1986 as causing cancer or Reproductive toxicity, and for which warnings are now required. CANADIAN REGULATIONS: REGULATORY STATUS: This Material Safety Data Sheet has been prepared in compilance with the Controled Product Regulations. Canadian WHMIS Classification: Not a Controlled Product. 10683 - GILSONITE 5 / 6 16. OTHER INFORMATION NPCA HMIS HAZARD INDEX: 0 Minimal Hazard FLAMMABILITY: 1 Slight Hazard REACTIVITY: 0 Minimal Hazard NPCA HMIS PERS. PROTECT. INDEX: E - Safety Glasses, Gloves, Dust Respirator USER NOTES: N/A = Not applicable N/D = Not determined INFORMATION SOURCES: OSHA Permissible Exposure Limits, 29 CFR 1910, Subpart Z, Section 1910.1000, Air Contaminants. ACGIH Threshold Limit Values and Biological Exposure Indices for Chemical Substances and Physical Agents (latest edition). Sax's Dangerous Properties of Industrial Materials, 9th ed., Lewis, R.J. Sr., (ed.), VNR, New York, New York, (1997). Product information provided by the commercial vendor(s). PREPARED BY: Sam Hoskin/bb REVISION No.: 0 MSDS STATUS: Approved. DATE: March 9, 2000 DISCLAIMER: MSDS furnished independent of product sale. While every effort has been made to accurately describe this product, some of the data are obtained from sources beyond our direct supervision. We cannot make any assertions as to its reliability or completeness; therefore, user may rely on it only at user's risk. We have made no effort to censor or conceal deleterious aspects of this product. Since we cannot anticipate or control the conditiions under which this information and product may be used, we make no guarantee that the precautions we have suggested will be adequate for all individuals and/or situations. It is the obligation of each user of this product to comply with the requirements of all applicable laws regarding use and disposal of this product. Additional information will be furnished upon request to assist the user; however, no warranty, either expressed or implied, nor liability of any nature with respect to this product or to the data herein is made or incurred hereunder. 10683 – GILSONITE