Product Identification
【Product Name】2-Hydroxy-3-naphthoic acid 2-羟基-3-萘甲酸
【Synonyms】Naphthol B.O.N.
【CAS】92-70-6
【Formula】C11H8O3
【Molecular Weight】188.18
【EINECS】202-180-8
【RTECS】QL1755000
【RTECS Class】Drug
【Merck】13,4860
【Beilstein/Gmelin】744100
【Beilstein Reference】4-10-00-01184
【EC Class】irritant
 
Physical and Chemical Properties
【Appearance】Very pale yellow crystals.
【Solubility in water】Very soluble
【Melting Point】217 - 220
【Boiling Point】368
【Vapor Pressure】5E-6 (25 C)
【pKa/pKb】3.02 (pKa)
【Partition Coefficient】3.29
【Heat Of Vaporization】64.8 kJ/mol
【Heat Of Combustion】-4950 kJ/mol
【Usage】Dyes & pigments.

First Aid Measures
【Ingestion】Never give anything by mouth to an unconscious person. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Get medical aid if irritation or symptoms occur.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Store in a cool, dry place. Keep container closed when not in use.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
【Inhalation】May cause respiratory tract irritation.
【Skin】Causes skin irritation.
【Eyes】Causes eye irritation.
【EC Risk Phrase】R 22 36/37/38
【EC Safety Phrase】S 26 36/37/39

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 and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【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.
【Poison Class】4

Fire Fighting Measures
【Flash Point】190
【Autoignition】>400
【Fire Fighting】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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.

Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Disposal Code】4
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information
【HS Code】2918 29 10