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Items | Standards | Results | ||||
Characters | Colorless to faint yellow liquid,with cool special peppermint fragrance,smell from pungent to cool | Qualified | ||||
Relative density(20/20℃) | 0.888-0.908 | 0.901 | ||||
Refractive index(20℃) | 1.4560-1.4660 | 1.4568 | ||||
Optical rotation(20℃) | -17°- -24° | Qualified | ||||
Boiling span | 216℃ | -20° | ||||
Ester content | 2.6%-6.3%(counting with the 1-menthyl acetate) | 6.3% | ||||
Solubility | Soluble in 70% ethyl alcohol | Qualified | ||||
Assay | Menthol≥80% | Qualified | ||||









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