Name:
Ethanethiol 99+%
Synonym:
Ethyl mercaptan; Ethyl sulfhydrate
CAS:
75-08-1
Section 1 - Chemical Product
MSDS Name:Ethanethiol 99+%
Synonym:Ethyl mercaptan; Ethyl sulfhydrate
Synonym:Ethyl mercaptan; Ethyl sulfhydrate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 75-08-1 | Ethanethiol | >99 | 200-837-3 |
| Hazard Symbols: XN F N Risk Phrases: 11 20 50/53 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Highly flammable. Harmful by inhalation. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.Stench.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central nervous system effects.
Inhalation:
Harmful if inhaled. Inhalation of high concentrations may cause central nervous system effects characterized by nausea, headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation.
Chronic:
Chronic ingestion may cause neurological symptoms.
Highly flammable. Harmful by inhalation. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.Stench.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central nervous system effects.
Inhalation:
Harmful if inhaled. Inhalation of high concentrations may cause central nervous system effects characterized by nausea, headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation.
Chronic:
Chronic ingestion may cause neurological symptoms.
Section 4 - FIRST AID MEASURES
Eyes: Immediately 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. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
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. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
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. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. May accumulate static electrical charges, and may cause ignition of its own vapors.
Extremely flammable liquid and vapor. Vapor may cause flash fire.
Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT get water inside containers. For large fires, use water spray, fog or regular foam. For small fires, use dry chemical, carbon dioxide, water spray or regular foam. Cool containers with flooding quantities of water until well after fire is out.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. May accumulate static electrical charges, and may cause ignition of its own vapors.
Extremely flammable liquid and vapor. Vapor may cause flash fire.
Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT get water inside containers. For large fires, use water spray, fog or regular foam. For small fires, use dry chemical, carbon dioxide, water spray or regular foam. Cool containers with flooding quantities of water until well after fire is out.
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. Remove all sources of ignition.
Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces. Evacuate unnecessary personnel. Approach spill from upwind. Use only non-sparking tools and equipment.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Remove all sources of ignition.
Provide ventilation. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces. Evacuate unnecessary personnel. Approach spill from upwind. Use only non-sparking tools and equipment.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. 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. Do not ingest or inhale. This product may be under pressure; cool before opening. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation.
Storage:
Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. 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. Do not ingest or inhale. This product may be under pressure; cool before opening. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation.
Storage:
Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 75-08-1: United Kingdom, WEL - TWA: 0.5 ppm TWA; 1.3 mg/m3 TWA United Kingdom, WEL - STEL: 2 ppm STEL; 5.2 mg/m3 STEL United States OSHA: ; 10 ppm Ceiling; 25 mg/m3 Ceiling Belgium - TWA: 0.5 ppm VLE; 1.3 mg/m3 VLE France - VME: 0.5 ppm VME; 1 mg/m3 VME Germany: 0.5 ppm TWA; 1.3 mg/m3 TWA Malaysia: 0.5 ppm TWA; 1.3 mg/m3 TWA Netherlands: 0.5 ppm MAC; 1 mg/m3 MAC Russia: 1 mg/m3 TWA Spain: 0.5 ppm VLA-ED; 1.3 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear chemical splash goggles.
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 explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 75-08-1: United Kingdom, WEL - TWA: 0.5 ppm TWA; 1.3 mg/m3 TWA United Kingdom, WEL - STEL: 2 ppm STEL; 5.2 mg/m3 STEL United States OSHA: ; 10 ppm Ceiling; 25 mg/m3 Ceiling Belgium - TWA: 0.5 ppm VLE; 1.3 mg/m3 VLE France - VME: 0.5 ppm VME; 1 mg/m3 VME Germany: 0.5 ppm TWA; 1.3 mg/m3 TWA Malaysia: 0.5 ppm TWA; 1.3 mg/m3 TWA Netherlands: 0.5 ppm MAC; 1 mg/m3 MAC Russia: 1 mg/m3 TWA Spain: 0.5 ppm VLA-ED; 1.3 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear chemical splash goggles.
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: Garlic or leek odor; stench.
pH: Not available.
Vapor Pressure: 442 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 35 deg C @ 760 mm Hg
Freezing/Melting Point: -148 deg C
Autoignition Temperature: 298 deg C ( 568.40 deg F)
Flash Point: -45 deg C ( -49.00 deg F)
Explosion Limits, lower: 2.8 vol %
Explosion Limits, upper: 18.2 vol %
Decomposition Temperature:
Solubility in water: 6.76 G/L (20C)
Specific Gravity/Density: .830 g/ml
Molecular Formula: C2H6S
Molecular Weight: 62.13
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Ignition sources, excess heat, confined spaces.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Ignition sources, excess heat, confined spaces.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 75-08-1: KI9625000 LD50/LC50:
CAS# 75-08-1: Draize test, rabbit, eye: 84 mg; Draize test, rabbit, eye: 100 mg/24H Moderate; Draize test, rabbit, skin: 500 mg/24H Mild; Inhalation, mouse: LC50 = 2770 ppm/4H; Inhalation, rat: LC50 = 4420 ppm/4H; Oral, rat: LD50 = 682 mg/kg.
Carcinogenicity:
Ethanethiol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 75-08-1: KI9625000 LD50/LC50:
CAS# 75-08-1: Draize test, rabbit, eye: 84 mg; Draize test, rabbit, eye: 100 mg/24H Moderate; Draize test, rabbit, skin: 500 mg/24H Mild; Inhalation, mouse: LC50 = 2770 ppm/4H; Inhalation, rat: LC50 = 4420 ppm/4H; Oral, rat: LD50 = 682 mg/kg.
Carcinogenicity:
Ethanethiol - 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: ETHYL MERCAPTAN
Hazard Class: 3
UN Number: 2363
Packing Group: I
IMO
Shipping Name: ETHYL MERCAPTAN
Hazard Class: 3.1
UN Number: 2363
Packing Group: I
RID/ADR
Shipping Name: ETHYL MERCAPTAN
Hazard Class: 3
UN Number: 2363
Packing group: I
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN F N
Risk Phrases:
R 11 Highly flammable.
R 20 Harmful by inhalation.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 16 Keep away from sources of ignition - No
smoking.
S 25 Avoid contact with eyes.
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 75-08-1: No information available.
Canada
CAS# 75-08-1 is listed on Canadas DSL List.
CAS# 75-08-1 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 75-08-1 is listed on the TSCA inventory.
