Certificate of analysis
Date: May. 09, 2011
Description of goods: Methyl salicylate USP/bp
Invoice number: Zjmy11077
Quantity: 20, 000kgs / 800 drums
Packing: 25kg plastic drum without pallet
Manufacturing date: May. 2011
Expiry date: May. 2013
Specifications results
Identification:
Heat 0.25ml with 2ml of dilute sodium hydroxide solution r on water bath add 3ml of dilue sulphuric acid r, a crystalline precipitate is formed, filiter, the precipitate washed with water r and dried at 100 to 105 melts at 156 to 161 pass test
Appearance
Clear, colorless liquid clear, colourless liquid
Assay 99.0%-100.5% 99.70%
Acidity:
[0.1n naoh]/5.0g 0.4 ml max. 0.12
Relative density 1.180 to 1.185 1.183
Refractive index 1.535 to 1.538 1.536
Heavy metals 0.002%(20ppm) max <20 ppm
Solubility complete & clear
1: 7 ml of 70% ethanol complete & clear
Angular rotation optically inactive pass test
Organic volatile impurities (method iv) meets the requirements pass test
Lot no.: 1105012
We certify that this product meet star k kosher standard
Audited Supplier 
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