
Product Description
|
Testing Items |
Standard Requirements |
Testing Result |
|
Character |
Colorless transparent prismatic or acicular crystal, aroma of Asia natura menthol feature. |
Qualified |
|
melting point |
42°C -- 44°C |
42.2°C |
|
specific rotation(20°C) |
-50° -- -49° |
-49.45° |
|
Non-volatile matter |
≤0.05% |
0.008% |
|
Arsenic Content |
≤0.0002% |
0.0001% |
|
Heavy Metals ( pb) |
≤0.0005% |
0.00027% |
|
solubility |
Add 1g volume sample to 5ml volume of ethanol 90%(v/v), obtaining a settled solution. |
Qualified |
|
Levo-menthol Content |
95.0%~105.0% |
99.2% |
|
Main Ingredients |
Levo-menthol,menthone,dl-isomenthol, pinene etc. |
Qualified |
Ⅱ. Functions of Chinese natural menthol crystal added in toothpaste menthol
•widely used in medicament, food, cigarette, cosmetic and toothpaste;
•Menthol mint leaves and stems extract, white crystals, using supercritical carbon dioxide extract
-ed from the mint, menthol ;
•can easy soluble in alcohol, chloroform, ethylether, ceresin wax, volatile oil. but lightly soluble in water.