Remarks:
Menthol Crystal on sale:
HS code:2906110000
Package: 25kg/drum
Specification:Food grade/Pharmaceutical Grade
Parameter Requirement Observation
Description Colorless, Hexagonal or needle like crystals, or infused masses Colorless, hexagonal, needle like crystals, Odor,
or crystalline powder, Odor, pleasant and characteristic Pleasant and characteristic
Solubility Very soluble in ethanol (95% v/v) and in ether, Freely soluble
in light liquid paraffin, in glacial acetic acid and in volatile oil, Slightly Complies
soluble in water.
Identification Infrared absorption spectrum of the sample in potassium bromide dispersion Complies
(A) is concordant with reference spectrum of menthol or with spectrum
obtained from the preparation of Menthol RS.
(B) Sample on reaction with sulphuric acid and solution of vanillin Complies
in sulphuric acid products an orange-yellow color.Futher, additio of
addition of water changes the color to violet.
(C) When triturated the sample with camphor or chloral hydreate Mixture Liquefies
or phenol, the mixture liquefies.
Specific Optical Not less than -49 and -49.8
Rotation Not more than -51
Acidity Filtrate on addition of methyl red solution 0.01 M sodium Complies
hydroxide gives a yellow color.
Related In the Chromatogram obtained with test solution the sum of the Complies
Substance areas of any secondary peaks in not greater than the area of the
prinicipal peak obtained with refernce solution (a).
Ignore any peak with an area less than the principal peak in the
chromatogram obtained with colored than reference solution.
Appearnce Sample solutoin is not more opalescent standard OS4, and not more Complies
of Solution intensely colored than reference solution RS6.
Residue on N M T 0.05% w/w 0.02%
Evaporation
* Purity by GC L-Menthol : N L T 99% 99.37%
(In-House)
Compliance statement :
In the opinion of the undersigned, the above referred sample complies / does not comply as per the I.P / B.P./E.P./U.S.P.
