Name:
Thiophenol 97%
Synonym:
Benzenethiol; Mercaptobenzene; Phenol, thio-; Penyl mercaptan; Thiofeno
CAS:
108-98-5
Section 1 - Chemical Product
MSDS Name:Thiophenol 97%
Synonym:Benzenethiol; Mercaptobenzene; Phenol, thio-; Penyl mercaptan; Thiofeno
Synonym:Benzenethiol; Mercaptobenzene; Phenol, thio-; Penyl mercaptan; Thiofeno
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 108-98-5 | Thiophenol | 97 | 203-635-3 |
| Hazard Symbols: T Risk Phrases: 10 23/24/25 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Flammable. Toxic by inhalation, in contact with skin and if swallowed.Stench.
Potential Health Effects
Eye:
Causes severe eye irritation and possible burns. May cause reversible inflammation and corneal injury with opacity.
Skin:
May be fatal if absorbed through the skin. Causes severe skin irritation and possible burns. May cause severe dermatitis and burns. Substance is readily absorbed through the skin. May cause cyanosis of the extremities.
Ingestion:
May be fatal if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May form methemoglobin which in sufficient concentration causes cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood).
Inhalation:
Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Inhalation may produce burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Causes severe respiratory tract irritation with possible burns.
Inhalation at high concentrations may cause CNS depression and asphixiation. Causes irritation of the mucous membrane.
Chronic:
Absorption into the body leads to the formation of methemoglobin which in sufficient concentrations causes cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood).
Flammable. Toxic by inhalation, in contact with skin and if swallowed.Stench.
Potential Health Effects
Eye:
Causes severe eye irritation and possible burns. May cause reversible inflammation and corneal injury with opacity.
Skin:
May be fatal if absorbed through the skin. Causes severe skin irritation and possible burns. May cause severe dermatitis and burns. Substance is readily absorbed through the skin. May cause cyanosis of the extremities.
Ingestion:
May be fatal if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May form methemoglobin which in sufficient concentration causes cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood).
Inhalation:
Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Inhalation may produce burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Causes severe respiratory tract irritation with possible burns.
Inhalation at high concentrations may cause CNS depression and asphixiation. Causes irritation of the mucous membrane.
Chronic:
Absorption into the body leads to the formation of methemoglobin which in sufficient concentrations causes cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood).
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. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Notes to Physician:
Treat symptomatically and supportively.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Notes to Physician:
Treat symptomatically and supportively.
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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Flammable liquid and vapor. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use water spray, dry chemical, carbon dioxide, or appropriate foam.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Flammable liquid and vapor. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Use water spray, dry chemical, carbon dioxide, or appropriate foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Cover with an activated carbon adsorbent and place into a closed container for disposal. Remove all sources of ignition.
Use a spark-proof tool. Provide ventilation.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Cover with an activated carbon adsorbent and place into a closed container for disposal. Remove all sources of ignition.
Use a spark-proof tool. Provide ventilation.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Do not get in eyes, on skin, or on 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. Use only in a chemical fume hood. Discard contaminated shoes. 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. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Do not get in eyes, on skin, or on 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. Use only in a chemical fume hood. Discard contaminated shoes. 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:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 108-98-5: United Kingdom, OES - TWA: 0.5 ppm TWA; 2.3 mg/m3 TWA Belgium - TWA: 0.5 ppm VLE; 2.3 mg/m3 VLE France - VME: 0.5 ppm VME; 2 mg/m3 VME Germany: 2 mg/m3 TWA Malaysia: 0.5 ppm TWA; 2.3 mg/m3 TWA Netherlands: 0.5 ppm MAC; 2 mg/m3 MAC Spain: 0.5 ppm VLA-ED; 2.3 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirators use.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local explosion-proof ventilation to keep airborne levels to acceptable levels.
Exposure Limits CAS# 108-98-5: United Kingdom, OES - TWA: 0.5 ppm TWA; 2.3 mg/m3 TWA Belgium - TWA: 0.5 ppm VLE; 2.3 mg/m3 VLE France - VME: 0.5 ppm VME; 2 mg/m3 VME Germany: 2 mg/m3 TWA Malaysia: 0.5 ppm TWA; 2.3 mg/m3 TWA Netherlands: 0.5 ppm MAC; 2 mg/m3 MAC Spain: 0.5 ppm VLA-ED; 2.3 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear safety glasses and chemical goggles if splashing is possible.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirators use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: colorless to light yellow
Odor: garlic-like odor
pH: Not available.
Vapor Pressure: 2 mm Hg @ 25 C
Viscosity: Not available.
Boiling Point: 169 - 170 deg C @ 760.00mm Hg
Freezing/Melting Point: -15 deg C
Autoignition Temperature: Not applicable.
Flash Point: 50 deg C ( 122.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Insoluble.
Specific Gravity/Density: 1.0730g/cm3
Molecular Formula: C6H6S
Molecular Weight: 110.17
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures. Oxidizes when exposed to air. Air sensitive.
Conditions to Avoid:
Incompatible materials, ignition sources, exposure to air, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, strong bases, air.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.
Hazardous Polymerization: Will not occur.
Stable under normal temperatures and pressures. Oxidizes when exposed to air. Air sensitive.
Conditions to Avoid:
Incompatible materials, ignition sources, exposure to air, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, strong bases, air.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 108-98-5: DC0525000 LD50/LC50:
CAS# 108-98-5: Draize test, rabbit, eye: 108 mg Severe; Inhalation, mouse: LC50 = 28 ppm/4H; Inhalation, rat: LC50 = 33 ppm/4H; Oral, mouse: LD50 = 267 mg/kg; Oral, mouse: LD50 = 266 mg/kg; Oral, rat: LD50 = 46200 ug/kg; Oral, rat: LD50 = 223 mg/kg; Skin, rabbit: LD50 = 134 mg/kg; Skin, rat: LD50 = 300 mg/kg.
Carcinogenicity:
Thiophenol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 108-98-5: DC0525000 LD50/LC50:
CAS# 108-98-5: Draize test, rabbit, eye: 108 mg Severe; Inhalation, mouse: LC50 = 28 ppm/4H; Inhalation, rat: LC50 = 33 ppm/4H; Oral, mouse: LD50 = 267 mg/kg; Oral, mouse: LD50 = 266 mg/kg; Oral, rat: LD50 = 46200 ug/kg; Oral, rat: LD50 = 223 mg/kg; Skin, rabbit: LD50 = 134 mg/kg; Skin, rat: LD50 = 300 mg/kg.
Carcinogenicity:
Thiophenol - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Other No information available.
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: PHENYL MERCAPTAN
Hazard Class: 6.1 (3)
UN Number: 2337
Packing Group:
IMO
Shipping Name: PHENYL MERCAPTAN
Hazard Class: 6.1 (3)
UN Number: 2337
Packing Group: I
RID/ADR
Shipping Name: PHENYL MERCAPTAN
Hazard Class: 6.1
UN Number: 2337
Packing group: II
USA RQ: CAS# 108-98-5: 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: T
Risk Phrases:
R 10 Flammable.
R 23/24/25 Toxic by inhalation, in contact with skin
and if swallowed.
Safety Phrases:
S 7 Keep container tightly closed.
S 16 Keep away from sources of ignition - No
smoking.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 108-98-5: 3
Canada
CAS# 108-98-5 is listed on Canadas DSL List.
CAS# 108-98-5 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 108-98-5 is listed on the TSCA inventory.
