ITEM

SPECIFICATION

TESTED DATAS

Color and appearance

Colorless, transparent prism-shaped or needle-like crystals

conformed

Odor

Asian species with the characteristics of natural menthol

conformed

Melting point

42-44℃

42.20℃

Solubility

1g:5ml (90%)

conformed

Non volatile matter

≤0.05%

0.030%

Optical rotation (20℃)

-49- -50°

-49.6°

Purity

≥97%

99.6%

As content

0.0003%max

0.0001%

Heavy metal

0.001%max

0.0006%