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Ascorbic Acid

Ascorbic Acid


                   Specification Of Ascorbic Acid
 Items  Standards
 Characteristics  White Or Almost White, Crystalline Powder Or Colorless Crystals
 Melting Point  189ºC~193ºC
 Special Optical   rotation  20.5º~+21.5º
 Apperance Of Solution  Solution S Is Clear And Not More Intensely Cloured Than Reference Solution BY7
 Heavy Metals  ≤10ppm
 Iron  10ppm
 Assay  99.0%~100.5%
 Copper  ≤5ppm
 Iron  ≤2ppm
 Mercury  ≤1ppm
 Arsenic   ≤3ppm
 Lead  ≤2ppm
 Oxalic Acid(impurity E)  ≤0.2%
 Loss On Drying  ≤0.4%
 Sulphated Ash  ≤0.1%
 PH(2%,W/V)  2.4~2.8
 Methanol  ≤3000ppm
 TAMC  ≤1000cfu/g
 TYMC  ≤100cfu/g
 E. Coli  Absence
 Conclusion  The Product Conforms To The Standard Of BP2014/EP8/USP38/E300/FCC7


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