1. Name: Carbaspirin Calcium
2. Packing: 25kg/drum
3. Standard: EP
4. Validity: 2years
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Testing items
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Characters
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White or almost white, crystalline powder
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Solubility
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soluble in water, insoluble in acetone and anhydrous methanol
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Identification
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Absorption maxima at 228nm and 276nm specify absorbance should be 363 to 379 at 228nm and 49 to 53 at 276nm.
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Infrared spectrum should be the same as the spectrum for reference spectrum
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The solution gives reaction of salicylates
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Heat sample with sodium hydioxide, a colour yellow or yellow wish-brown is produced and the vapour turns red litmus paper blue.
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It give the reaction of calcium
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Turbidity of solution
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clear or not more than opalescent than reference suspension Ⅱ
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Color of solution
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clourless or not more than reference solution B 9
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Related compound
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Total impurities≤.01%
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salicylic acid
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the absorbance ≤.0.115
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Sodium
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≤0.10%
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Heavy Metals
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≤10PPM
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Water
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≤0.1%
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Assay
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99.0%-101.0% calculated on anhydrous basis
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