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1.Product Name:LACTOSE MONOHYDRATE 2.CAS NO:64044-51-5 3.Application:Food additives/Medical use 4.Sample:free 5.Specification:
In sealed plastic bag
Basis for Analysis
The infrared absorption spectrum of the sample is concordant with that of the standard.
The principal spot obtained from the Test solution corresponds in appearance and RF value to that obtained from Standard solution A.The test is not valid unless the chromatogram obtained with Standard solution B shows four clearly discernible spots, disregarding any spots at the origin.
Residue on ignition
NMT 5µg per g.
Clarity and color of solution
The solution(1g in 10ml of boiling water) isclear and nearly colorless.
Determine the absorbance of this solution at a wavelength of 400 nm. The absorbance divided by the path length, in cm, is NMT 0.04
+54.4°~+55.9°, calculate on the anhydrous basis, determined at 20°
Acidity or alkalinity
Add 0.3ml of phenolphthalein TS:the solution is colorless, and not more than 0.4 ml of 0.1 N sodium hydroxide is required to produce a pink ro red color.