What is Diphenylamine?

Basic information:

Product name: Diphenylamine

An English alias: N-Phenylaniline, N-Phenylbenzeneamine

Chemical Formula: C12H11N

Molecular Weight: 169.23

CAS NO: 122-39-4

Appearance: Diphenylamine is white to pale red crystals. It has floral scent. It is easy to change color when exposes the light. Diphenylamine is soluble in ether, benzene, glacial acetic acid and carbon disulfide, 1g Diphenylamine dissolve in 2.2ml of ethanol, 4.5ml of acetone, but it is insoluble in water. With strong acids to form salts. The relative density is 1.16. Melting point is 54 to 55 ℃. Boiling point is 302 ℃. Flash point is 153 ℃. Diphenylamine has low toxicity and median lethal dose (rat, oral) is 3000mg/kg. Diphenylamine has strong Irritation.

Storage: sealed cool stored.

Uses: Diphenylamine is used to nitrates, perchlorates and other oxidizing substances test. It is also used to the Determination of iridium catalyst and Nitrate photometric. Diphenylamine is a kind of Redox indicator. Sometimes Diphenylamine used as Haploid breeding medium and manufacture of dyes. Diphenylamine is also a stabilizer of Nitrocellulose, explosives, collodion.

HAZARDS of Diphenylamine:

Health Hazard: No occupational poisoning reported. The product manufacturing process can containing 4 - amino biphenyl, the latter should be noted that carcinogenicity.

Explosion Hazards: Diphenylamine is flammable, irritating.

First aid measures:

Skin contact: Remove contaminated clothing, mobile water rinse.

Eye contact: Did eyelid, mobile or saline irrigation water. See Doctor.

Inhalation: from the scene to fresh air. See Doctor.

Ingestion: drink plenty of water, induce vomiting. See Doctor.

Fire-fighting measures:

Hazardous characteristics: Case of fire, combustible high fever. Powder can form explosive mixtures with air, when it reaches a certain concentration, the case of Mars will be an explosion.

Hazardous combustion products: carbon monoxide, carbon dioxide, nitrogen oxides.

Extinguishing Media: water spray, foam, dry powder, carbon dioxide, sand

Fire fighting methods: firefighters are required to wear gas masks at a safe distance, standing the wind on fire.

Leakage accidental: isolation leakage polluted area, restricting access. Cut off the fire source. Recommended emergency personnel wearing a dust mask (full cover), wear protective clothing. With clean shovel collection in a dry, clean, covered containers, transfer to a safe place. If spills are too large, the recycling or collection should be shipped to the waste disposal sites.

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