- Food Additives[10]
- Organic Acid[1]
- Feed Additives[10]
- Pharmaceutical[2]
- Flavour & Fragrance[6]
- Plant Extract[2]
- Water Treatment[2]
- Organic Salt[1]
- Chemical Auxiliary Agent[1]
- Contact Person : Ms. Chen Chenli
- Company Name : A . M Food Chemical (Jinan) Co., Limited
- Tel : 86-531-87100375
- Fax : 86-531-87105371
- Address : Shandong,Jinan,NO.12406,Jingsan Road,Jinan,China
- Country/Region : China
- Zip : 250014
Natural Menthol crystal
Natural Menthol crystal
BP2008/USP31
Items | Standards | Analytical results | |
USP31 | BP2008 | ||
Identification | Colorless ,transparent hexagonal or needlelike crystals. | Complies with standard | |
Melting point(°C) | 41-44°C | About 43°C | 42.5°C |
Solubility | 1 g soluble in 5ml of 90%(v/v)alcohol. Forming a clear solution | Complies with standard | |
Specific rotation | -45°~-51° | About -50° | -49.7° |
Limit of nonvolatile residue | Not overrun 0.05 under condition of 105°C | 0.01 | |
Organic volatile impurities | Solvent –use dimethyl sulfoxide | Meets the requirement | |
Chromatographic purity | The peak response due to menthol is Not less than 97% | 99.6 | |
As content | ≤3ppm | Absent | |
Loss on dry | ≤0.05% | 0.05% | |
Heavy metals | ≤10 ppm | <10ppm | |
Residue on evaporation | ≤0.05% | 0.03% | |
Related substances | Examine by gas chromatography | Meets the requirement | |
Residue on ignition | ≤0.1% | 0.03% | |
Conclusion | Analytical results conforming to standard BP2008/USP31 | ||
Usage
[1] natural Menthol crystal is colorless needle-like or prism-like crystals, which is used for medical, food and additives to some perfume, with a special scent of Asian peppermint and hot taste at beginning then cool.
[2] It is highly soluble in alcohol, chloroform, ether, liquid paraffin or volatile oil, and slightly soluble in water.
Natural Menthol crystal