Product Description

The main constituent of it is naphthalene, and which the crystallization point above *7.5C. The appearance: The color is white, which light red or yellow is allowed. It is powdery or flake crystal. Main use: Using in the production of the chemical materials. For example: ophthalmic anhydride, water reducing agent and so on. It is the important material and intermediate in the following trades: dying, plastic, building, medicine and so on. Quality Indicators: ***** :>=*7.5C ***** volatile content:<=0.*8% 3.ash content:<=0.*2%