Menthol is colorless, transparent hexagonal or needlelike crystals mainly used in food and pharmaceutical industry.
|
ITEM |
STANDARD |
|
Appearance |
Colorless, transparent hexagonal or needlelike crystals |
|
Odor |
Have the characteristic odor ofChinese natural menthol |
|
Purity (%) |
≥ 99 |
|
Melting point (°C) |
41.5 ~ 44.0 |
|
Solubility (25 °C) |
Melting 1 gram test sample into 5ml 90% alcohol |
|
Non- volatile matter (%) |
≤ 0.05 |
|
Specific rotation(25°C) |
- 50° ~ - 49° |
|
Arsenic (As) |
≤ 3 mg/kg |
|
Lead (Pb) |
≤ 2 mg/ kg |
|
Mercury (Hg) |
≤ 1 mg/ kg |
|
Heavy Metals (as PB) |
≤ 10 mg/ kg |
|
Conclusion: |
The product conforms to the standard of BP2012/USP31 |
