产品描述

Colorless, transparent hexagonal or needlelike crystals

Odor    Have the characteristic odor ofChinese natural menthol

Purity (%) >= 99.5
   

Melting point (℃) 41.5 ~ 44.0
   

Solubility (25 ℃) Melting 1 gram test sample into 5ml 90% alcohol
   

Non- volatile matter (%)  =< 0.05
   

Specific rotation（25℃） - 50° ~ - 49°
   

Arsenic (As)  =< 3 mg/kg
   

Lead (Pb)  =< 2 mg/ kg
   

Mercury (Hg) =< 1 mg/ kg
   

Heavy Metals (as PB) =< 10 mg/ kg