1-Naphthol
Synonymous:A-Naphthol;1-Hydroxynaphthalene
Molecular Formula:C10H8O
Molecular Weight:144.17
CAS:90-15-3
Structure:
EINECS:201-969-4
Melting Point:96 ℃
Water solubility:Soluble in ethanol, ether, chloroform and alkali solution, insoluble in water.
Appearance:White crystalline powder with unpleasant smell of phenol
Product Introduction:
1-naphthol is toxic. Poisoning can be caused by swallowing or skin absorption. Its symptoms are vomiting, diarrhea, abdominal pain, anemia and collapse. Irritating to eyes and mucous membranes.
Storage:
Store in a closed, dark and ventilated place. Store and transport according to regulations on flammable and toxic substances.
Uses:
· The demand of 1-naphthol is only about 5% of that of 2-naphthol. However, 1-naphthol is in great demand as the raw material of insecticide carbaryl. The intermediates derived from 1-naphthol include N-phenyl-1-naphthylamine, n-ethyl-1-naphthylamine, n-cyclohexyl-1-naphthylamine, 1-hydroxy-2-naphthoic acid, 1-naphthol-2-sulfonic acid, 1-naphthol-4-sulfonic acid, 1,7-krebs acid, acetamino-7-naphthol, 2,4-dinitrophenol, etc. In the dye industry, the land is used to produce acid yellow 1, acid orange 20, mordant black 3, mordant black 11, Solvent Red 3, solvent Orange 5, oil palm GB, etc. In the pharmaceutical industry, it can be used to manufacture preservatives and anti mild rheumatism drugs. It is also an effective antioxidant for many aldehydes, mineral oils and vegetable oils. It is widely used in synthetic spices, rubber antioxidants and color couplers for color film.
· It is the basic raw material for organic synthesis industry, pharmaceutical industry and dye industry. It is also used in the production of plastic, rubber antioxidant, color film coupler, etc. It is a restricted substance in cosmetic components. The maximum allowable content is 0.5%, and the allowable range is the coupling hair color agent for hair dyeing.