快餐一条龙400到付_附近300元快餐不限次数二维码_400元2小时快餐联系方式

     
Industrial fluorene
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It is a kind of polycyclic aromatic hydrocarbons with fluorescence if impure. It has molecular formula of C13H10. It is white flake crystal with characteristic aromatic smell similar to naphthalene.
Product characteristics
It is gray white crystal (colorless to pink flake crystal), with purple fluorescence. It is insoluble in water, but soluble in ethanol, ether, benzene, carbon disulfide, etc.
Application instructions
It can be used to prepare drugs, dyes and various additives.
Application instructions
Electronic appliances
Healthy Nutrition
Others