logo1.png TREERING GROUP LIMITED
Add:  Building C,No.888,Huanhu West 2nd Road,Lingang Special Area,China (Shanghai) Pilot Free Trade Zone.
Tel: +86 191 1634 4846    Website: www.treering.com.cn

Certificate of Analysis

Product Name:Ascorbic AcidSpecification:BP/USP/FCC
Batch No.:TR20253832Quantity:10,000 KGS
Production Date:Aug 9,2025Expiry Date:Aug 8,2027
Analysis ContentsAnalysis StandardAnalysis Results
CharacteristicsWhite or almost White
   
crystals Crystalline Powder
Pass
IdentificationPositive ReactionPositive
Melting PointAbout 190191.20
PH(with 5% water solution)2.1-2.62.35
Clarity Of SolutionClearClear
Colour Of SolutionBY7<BY7
Copper5ppm<5ppm
Heavy Metals10ppm<10ppm
Mercury0.1mg/kg<0.1mg/kg
Lead2mg/kg<2mg/kg
Arsenic3ppm<3ppm
Oxalic Acid0.2%<0.2%
Iron2ppm<2ppm
Cadmium(Cd)<1mg/kg<1mg/kg
Impurity E0.2%<0.2%
Loss on Drying0.4%<0.4%
Sulphate Ash(Residue On Ignition)0.1%<0.1%
Specific Optical Rotation+20.5°–+21.5°20.97°
Residual SolventsPassPass
Assay99.0%-100.5%99.71%

CONCLUSION: The Above-Mentioned Product Conforms To BP2018/USP41/FCC11/EP9.8/E300 
PACKING:  25 KGS/Carton
STORAGE:Store in a cool and dry place, away from light ,heat and oxygen.