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Product name: Citric Acid Anhydrous
Characters: Colorless or white crystalline powder.
Use: Citric acid is mainly used as an acidulant, flavorant and preservative preservative in foods and beverages. It is also used as an antioxidant, plasticizer and detergent, builder.
General Features: Molecular formula: C6H8O7 molecular weight: 192.1
Packaging: The packing of our citric acid anhydrous includes 25kg net bag, 50pound net bag, 500kg net bag, 1000kg net bag with pallet.
Storage: Kept in a light-proof, well-closed, dry and cool place.
Quality: BP98, USP24, enterprise standard ect..
Citric Acid AnhydrousStandard:
Item Standard of Yixing-Union BP2009 USP32 FCC7 E330 JSFA8.0 GB 1987-2007
Characters Colourless Crystal or White Crystal powder
Identification pass test 
Clarity and Color of solution  Pass test Pass test Pass test / / / /
Light transmittance ≥98.0% / / / / ≥96.0%
Water ≤0.15% ≤1.0% ≤1.0% ≤0.5% ≤0.5% ≤0.5% ≤0.5%
Content 99.5%~100.5% 99.5%~100.5% 99.5%~100.5% 99.5%~100.5% ≥99.5% ≥99.5% 99.5%~100.5%
RCS ≤1.40BU Not exceeding
the standard
Not exceeding
the standard
A≤0.52,T≥30% Not exceeding
the standard
Not exceeding
the standard
Calcium ≤0.001% pass test ≤0.02%
Iron ≤1mg/kg ≤5mg/kg
Chloride ≤0.0005% ≤0.005%
Sulphate ≤0.002% ≤150ppm ≤0.015% ≤0.048% ≤0.01%
Oxalates ≤0.002% ≤360ppm ≤0.036% No turbidity forms ≤100mg/kg Pass test ≤0.01% 
Heavy metals ≤0.0001% ≤10ppm ≤0.001% ≤5mg/kg ≤10mg/kg
Lead ≤0.5mg/kg ≤0.5mg/kg ≤1mg/kg / ≤0.5mg/kg
Aluminium ≤0.2mg/kg ≤0.2ppm ≤0.2ug/g /
Arsenic ≤0.2mg/kg ≤1mg/kg ≤4mg/kg ≤1mg/kg
Mercury ≤0.1mg/kg ≤1mg/kg /
Sulphuric acid ash content ≤0.03% ≤0.1% ≤0.1% ≤0.05% ≤0.05% ≤0.1% ≤0.05%
water-insoluble Pass test / Pass test
Bacterial endotoxins ≤0.5IU/mg ≤0.5IU/mg Pass test /
Tridodecylamine ≤0.1mg/kg ≤0.1mg/kg /
polycyclic aromatic
hydrocarbons (PAH)
≤0.05(260-350nm) ≤0.05(260-350nm)
isocitric acid Pass test Pass test

Membrane Experiment:
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