Product Identification
【Product Name】Benazol P ；紫外线吸收剂UV-P
【Synonyms】2-(2H-Benzotriazol-2-yl)-4-methylphenol
【CAS】2440-22-4
【Formula】C13H11N3O
【Molecular Weight】225.25
【EINECS】219-470-5
【RTECS】6860000
【RTECS Class】Primary Irritant
【Merck】12,3503
【Beilstein/Gmelin】615546
【Beilstein Reference】6-26

Physical and Chemical Properties
【Solubility in water】Insoluble
【Melting Point】127-129℃
【Boiling Point】424℃
【Vapor Pressure】9E-8 (25℃)
【pKa/pKb】8.15 (pKa)
【Heat Of Vaporization】70.5 kJ/mol
【Usage】An ultraviolet light absorber for stabilizing plastics and other organic materials against discoloration and deterioration.

First Aid Measures
【Ingestion】If swallowed, wash out mouth with water provided person is conscious. Call a physician.
【Inhalation】If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
【Skin】In case of contact, immediately wash skin with soap and copious amounts of water.
【Eyes】In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage
【Storage】Keep tightly closed.

Hazards Identification
【Inhalation】May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
【Skin】May cause skin irritation. May be harmful if absorbed through the skin.
【Eyes】Causes eye irritation.
【Ingestion】May be harmful if swallowed.
【Hazards】Emits toxic fumes under fire conditions.
【EC Risk Phrase】36
【EC Safety Phrase】26 36

Exposure Controls/Personal Protection
【Personal Protection】Compatible chemical-resistant gloves. Chemical safety ggles.
【Respirators】vernment approved respirator.
【Exposure Effects】Irritant. Irritating to eyes.

Fire Fighting Measures
【Flash Point】210℃
【Fire Fighting】Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures
【Small spills/leaks】Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

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