BP,FCC,USPl Menthol Crystal[CAS No 89-78-1]
1.About menthol crystal
Colorless needle-like or prism-like crystals
MF:C10H20O
Cas No:2216-51-5
2.Uses
[1]Used for medical,food and additives to some perfume,
[2]It's highly soluble in alcohol,chloroform,ether,liquid paraffin or volatile oil,and slightly soluble in water.
3.Index of Technology
4.Package
25Kg/drums ,expiry life is 2 years.
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1.About menthol crystal
Colorless needle-like or prism-like crystals
MF:C10H20O
Cas No:2216-51-5
2.Uses
[1]Used for medical,food and additives to some perfume,
[2]It's highly soluble in alcohol,chloroform,ether,liquid paraffin or volatile oil,and slightly soluble in water.
3.Index of Technology
| Items | Standards |
| Appearance | Colourless ,transparent hexagonal orneedlelike crystals. |
| Melting point(ºC) | 41-44ºC |
| Solubility | 1 g soluble in 5ml of 90%(v/v)alcohol. Forming a clear solution |
| Specific rotation | -45°~-51° |
| Limit of nonvolatile residue | Not overrun 0.05% under condition of 105ºC |
| Organic volatile impurities | Solvent -use dimethyl sulfoxide |
| Chromatographic purity | The peak response due to menthol is Not less than 97% |
| As content | ≤3ppm |
| Loss on dry | ≤0.05% |
| Heavy metals | ≤10 ppm |
| Residue on evaporation | ≤0.05% |
| Related substances | Examine by gas chromatography |
| Residue on ignition | ≤0.1% |
4.Package
25Kg/drums ,expiry life is 2 years.