Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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4-Mercaptoaniline(1193-02-8)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
4-Mercaptoaniline
Synonyms
4-Aminothiophenol
4-Mercaptoaniline
p-Aminophenyl mercaptan
p-Aminophenylthiol
p-Aminothiophenol
p-Mercaptoaniline
CAS
1193-02-8
Formula
C6H7NS
Molecular Weight
125.19
EINECS
214-763-4
RTECS
DC0602500
RTECS Class
Mutagen
Beilstein/Gmelin
906904
Beilstein Reference
4-13-00-01289
EC Class
irritant

Physical and Chemical Properties

Appearance
Yellow solid. With a stench.
Solubility in water
Very soluble
Melting Point
40 - 44
Boiling Point
262
Vapor Pressure
0.01 (25 C)
pKa/pKb
5.25 (pKb)
Partition Coefficient
1.14
Heat Of Vaporization
50.0 kJ/mol

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Do NOT induce vomiting and seek IMMEDIATE MEDICAL ADVICE.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Use only in a chemical fume hood.

Hazards Identification

Ingestion
Causes gastrointestinal tract burns. May cause methemoglobinemia, cyanosis, convulsions, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood.
Inhalation
May cause cyanosis, characterized by bluish-colored skin. May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.
Skin
Causes skin burns.
Eyes
Causes eye burns.
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 20/21/22 34
EC Safety Phrase
S 26 36/37/39 45
UN (DOT)
1759

Exposure Controls/Personal Protection

Personal Protection
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. 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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

Flash Point
112
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible solid. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire Potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Incompatibilities
Acids, acid chlorides, acid anhydrides, chloroformates, strong oxidizing agents.
Stability
Stable under normal temperatures and pressures.
Decomposition
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
1759
Hazard Class
8
Packing Group
I; II; III
HS Code
2930 90 70
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