Name:
Isoprene 99+% stabilized with 100 ppm 4-tert-butylcatechol
Synonym:
2-Methyl-1,3-butadien
CAS:
78-79-5
Section 1 - Chemical Product
MSDS Name:Isoprene 99+% stabilized with 100 ppm 4-tert-butylcatechol
Synonym:2-Methyl-1,3-butadien
Synonym:2-Methyl-1,3-butadien
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 78-79-5 | Isoprene | >99 | 201-143-3 |
| Hazard Symbols: F+ Risk Phrases: 12 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Extremely flammable.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May cause respiratory tract irritation. Vapors may cause dizziness or suffocation. Inhalation at high concentrations may cause CNS depression and asphixiation.
Chronic:
Not available.
Extremely flammable.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
May cause respiratory tract irritation. Vapors may cause dizziness or suffocation. Inhalation at high concentrations may cause CNS depression and asphixiation.
Chronic:
Not available.
Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. Extremely flammable. Material will readily ignite at room temperature. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Will be easily ignited by heat, sparks or flame.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Use agent most appropriate to extinguish fire. Do NOT use straight streams of water.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. Extremely flammable. Material will readily ignite at room temperature. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Will be easily ignited by heat, sparks or flame.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Use agent most appropriate to extinguish fire. Do NOT use straight streams of water.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use only in a well-ventilated area.
Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Flammables-area.
Wash thoroughly after handling. Use only in a well-ventilated area.
Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Flammables-area.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 78-79-5: Russia: 40 mg/m3 TWA CAS# 98-29-3: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 78-79-5: Russia: 40 mg/m3 TWA CAS# 98-29-3: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: clear, colorless
Odor: None reported.
pH: Not available.
Vapor Pressure: 400 mm Hg @15.4 deg C
Viscosity: 0.225 cP 15 deg C
Boiling Point: 34 deg C @ 760.00mm Hg
Freezing/Melting Point: -146 deg C
Autoignition Temperature: 220 deg C ( 428.00 deg F)
Flash Point: -48 deg C ( -54.40 deg F)
Explosion Limits, lower: 1.00 vol %
Explosion Limits, upper: 9.70 vol %
Decomposition Temperature:
Solubility in water: Insoluble.
Specific Gravity/Density: .6810g/cm3
Molecular Formula: C5H8
Molecular Weight: 68.11
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable. However, it may undergo explosive polymerization if uninhibited.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, excess heat, electrical sparks, exposure to flame, loss of inhibitor.
Incompatibilities with Other Materials:
Strong oxidizing agents, bases, alcohols, alkali metals, ammonia, chlorinated solvents, halogens, nitric acid, sulfuric acid, oxygen, ozone, chlorosulfonic acid, oleum, acid chlorides, vinylamine.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: May occur.
Stable. However, it may undergo explosive polymerization if uninhibited.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, excess heat, electrical sparks, exposure to flame, loss of inhibitor.
Incompatibilities with Other Materials:
Strong oxidizing agents, bases, alcohols, alkali metals, ammonia, chlorinated solvents, halogens, nitric acid, sulfuric acid, oxygen, ozone, chlorosulfonic acid, oleum, acid chlorides, vinylamine.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: May occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 78-79-5: NT4037000 CAS# 98-29-3: UX1400000 LD50/LC50:
CAS# 78-79-5: Inhalation, mouse: LC50 = 139 gm/m3/2H; Inhalation, mouse: LC50 = 130000 mg/m3/2H; Inhalation, rat: LC50 = 180 gm/m3/4H; Inhalation, rat: LC50 = 129000 mg/m3/4H.
CAS# 98-29-3: Draize test, rabbit, skin: 750 ug/24H Severe; Oral, rat: LD50 = 2820 mg/kg; Skin, rabbit: LD50 = 630 uL/kg.
Carcinogenicity:
Isoprene - California: carcinogen, initial date 5/1/96 NTP: Suspect carcinogen IARC: Group 2B carcinogen 4-tert-Butylcatechol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 78-79-5: NT4037000 CAS# 98-29-3: UX1400000 LD50/LC50:
CAS# 78-79-5: Inhalation, mouse: LC50 = 139 gm/m3/2H; Inhalation, mouse: LC50 = 130000 mg/m3/2H; Inhalation, rat: LC50 = 180 gm/m3/4H; Inhalation, rat: LC50 = 129000 mg/m3/4H.
CAS# 98-29-3: Draize test, rabbit, skin: 750 ug/24H Severe; Oral, rat: LD50 = 2820 mg/kg; Skin, rabbit: LD50 = 630 uL/kg.
Carcinogenicity:
Isoprene - California: carcinogen, initial date 5/1/96 NTP: Suspect carcinogen IARC: Group 2B carcinogen 4-tert-Butylcatechol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: ISOPRENE, INHIBITED
Hazard Class: 3
UN Number: 1218
Packing Group: I
IMO
Shipping Name: ISOPRENE, INHIBITED
Hazard Class: 3.1
UN Number: 1218
Packing Group: I
RID/ADR
Shipping Name: ISOPRENE, INHIBITED
Hazard Class: 3
UN Number: 1218
Packing group: I
USA RQ: CAS# 78-79-5: 100 lb final RQ; 45.4 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F+
Risk Phrases:
R 12 Extremely flammable.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 29 Do not empty into drains.
S 33 Take precautionary measures against static
discharges.
WGK (Water Danger/Protection)
CAS# 78-79-5: 1
CAS# 98-29-3: No information available.
Canada
CAS# 78-79-5 is listed on Canadas DSL List.
CAS# 98-29-3 is listed on Canadas DSL List.
CAS# 78-79-5 is listed on Canadas Ingredient Disclosure List.
CAS# 98-29-3 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 78-79-5 is listed on the TSCA inventory.
CAS# 98-29-3 is listed on the TSCA inventory.
