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|Name:||2-Aminothiophenol 99% (Titr.) Material Safety Data Sheet|
|Synonym:||2-Mercaptoaniline ; 2-Aminobenzenethiol|
Synonym:2-Mercaptoaniline ; 2-Aminobenzenethiol
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
Risk Phrases: 34
Section 3 - HAZARDS IDENTIFICATION
Causes burns.Air sensitive.Corrosive.
Potential Health Effects
Causes eye burns. May cause chemical conjunctivitis and corneal damage.
Causes skin burns. May cause cyanosis of the extremities. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause methemoglobinemia, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), convulsions, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, shortness of breath, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), rapid heart rate and chocolate-brown colored blood. Mercaptans may cause nausea and headache. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. May cause systemic effects.
May cause cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood). May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. Aspiration may lead to pulmonary edema.
Methemoglobinemia is characterized by dizziness, drowsiness, headache, shortness of breath, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), rapid heart rate and chocolate-brown blood. May cause systemic effects. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. Mercaptans may cause nausea and headache. Inhalation of aniline causes anoxia due to the formation of methemoglobin. Inhalation at high concentrations may cause CNS depression and asphixiation.
May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis (bluish skin due to deficient oxygenation of blood), rapid heart rate, unconsciousness and possible death. Effects may be delayed.
Section 4 - FIRST AID MEASURES
Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
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. Do NOT induce vomiting and seek IMMEDIATE MEDICAL ADVICE.
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. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
For methemoglobinemia, administer oxygen alone or with Methylene Blue depending on the methemoglobin concentration in the blood.
Antidote: Methylene blue, alone or in combination with oxygen is indicated as a treatment in nitrite induced methemoglobinemia.
Section 5 - FIRE FIGHTING MEASURES
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. Dusts may be combustible when exposed to heat, flame, or oxidizing agents. Combustible liquid. Containers may explode when heated.
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Use water spray, dry chemical, carbon dioxide, or chemical foam. Use agent most appropriate to extinguish fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Place under an inert atmosphere.
Section 7 - HANDLING and STORAGE
Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Do not breathe dust, vapor, mist, or gas. 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.
Handle under an inert atmosphere. Store protected from air. Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Corrosives area. Do not expose to air. Store under an inert atmosphere.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 137-07-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Wear appropriate protective gloves to prevent skin exposure.
Wear appropriate protective clothing to prevent skin exposure.
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Color: clear yellow to amber
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 234 deg C @ 760.00mm Hg
Freezing/Melting Point: 23 - 26 deg C
Autoignition Temperature: Not applicable.
Flash Point: 79 deg C ( 174.20 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Solubility in water: insoluble
Specific Gravity/Density: 1.1680g/cm3
Molecular Formula: C6H7NS
Molecular Weight: 125.19
Section 10 - STABILITY AND REACTIVITY
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, exposure to air, excess heat.
Incompatibilities with Other Materials:
Air, strong oxidizing agents.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
CAS# 137-07-5: DC0600000 LD50/LC50:
2-Aminothiophenol - Not listed by ACGIH, IARC, or NTP.
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
Not regulated as a hazardous material.
Not regulated as a hazardous material.
Not regulated as a hazardous material.
Section 15 - REGULATORY INFORMATION
European Labeling in Accordance with EC Directives
Hazard Symbols: C
R 34 Causes burns.
S 25 Avoid contact with eyes.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
WGK (Water Danger/Protection)
CAS# 137-07-5: No information available.
CAS# 137-07-5 is listed on Canada's DSL List.
CAS# 137-07-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 137-07-5 is listed on the TSCA inventory.
SECTION 16 - ADDITIONAL INFORMATION