Specifications:
Color and Appearance: Colorless, transparent hexagonal or needlelike crystals.
Odor: Having Characteristic odor of natural menthol obtained from mentha avensis oil.
Melting point: 42-44℃
Non-volatile matter: 0.05 % maximum
Solubility: 1g soluble in 5ml of 90% (v/v)alcohol, forming a clear solution.
Specific rotation: -49-50o(20℃)
Purity: ≥99%
Thymol test: Negative
Litmus paper test: Neutral
As content: ≤3ppm
Heavy metal content(calculated as Pb ): ≤10ppm