Product name:1-Naphthol
CAS:90-15-3
Molecular Formula:C10H8O
Formula Weight:144.17
Specification:25g
Description:
1-naphthol is a colorless or yellow lozenge crystal or powder. There is an unpleasant smell of phenol. Soluble in ethanol, ethyl ether, benzene, chloroform and alkali solution, insoluble in water.
1- naphthol has a variety of production methods, can be divided into: alpha - naphthalene sulfonic acid alkaline fusion method, alpha - naphthalene amine hydrolysis method, tetrahydronaphthalene method. Alpha-naphthylamine hydrolyzed alpha-naphthylamine with dilute sulfuric acid as the medium to get alpha-naphthol crude product, crude product after separation neutralization, distillation, the final product. 2. Refined naphthalene was sulfonated with sulfuric acid at low temperature to produce alpha-naphthalene sulfonic acid, and the by-product was also produced by producing beta-naphthalene sulfonic acid. After separating the by-product, the product was neutralized, alkali fused, acidified, and then separated and distilled. Raw material consumption quota: sulfuric acid (98%) 900kg/t, refined naphthalene (99.5%) 1150kg/t, caustic soda (42%) 1300kg/t.
1-naphthol can be used for colorimetric determination of titanium, niobium, tungsten, germanium, vanadium, nitrite and copper. Determination of tyrosine and protein; It is used as the basic raw material or intermediate of dyestuff, pesticide, perfume and rubber antiaging agent and color film forming agent.