Product Identification
【Product Name】1-Phenylazo-2-naphthol 苯基偶氮-2-萘酚
【Synonyms】Solvent Yellow 14；苏丹-1；苏丹红一号
【CAS】842-07-9
【Formula】C16H12N2O
【Molecular Weight】248.3
【EINECS】212-668-2
【RTECS】QL4900000
【RTECS Class】Tumorigen; Mutagen
【Beilstein/Gmelin】651992
【Beilstein Reference】4-16-00-00228
【EC Index Number】611-056-00-6
【EC Class】Carcinogenic Catery 3; Mutagenic Catery 3; Sensitising; Dangerous for the Environment

Physical and Chemical Properties
【Appearance】Dark reddish-yellow leaflets or orange powder. Slight odor.
【Solubility in water】Insoluble
【Melting Point】135℃
【Boiling Point】444℃
【Vapor Pressure】2E-8 (25℃)
【Density】1.119 g/cm3 (151℃)
【pKa/pKb】13.50 pKa
【Partition Coefficient】4.24
【Heat Of Vaporization】72.8 kJ/mol
【Heat Of Combustion】-8263 kJ/mol
【Usage】Dye for hydrocarbon solvents, oils, fats, waxes, shoe & floor polishes, gasoline, soap, colored smokes, cellulose ether varnishes, & styrene resins.

First Aid Measures
【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】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. 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】Store in a cool, dry place. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification
【Inhalation】The toxicological properties of this substance have not been fully investigated. Inhalation of dust may cause respiratory tract irritation.
【Skin】May cause skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
【Eyes】May cause eye irritation.
【Ingestion】The toxicological properties of this substance have not been fully investigated.

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles 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.
【Exposure Effects】The toxological properties of this substance have not been fully investigated.

Fire Fighting Measures
【Flash Point】290℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
【Fire Potential】This material is probably combustible.

Accidental Release Measures
【Small spills/leaks】Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.

Stability and Reactivity
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Nitrogen oxides, carbon monoxide, carbon dioxide.