Product name: Citric acid monohydrate
CAS No.: 5949-29-1
H. S code: 29181 40000
Molecular weight: 210.14
Appearance: Colorless crystals or white crystalline powder.
Specification: BP98 / BP2012 / USP32 / E330
Package: 25 kg / 1,000 kg composite paper-plastic bag.
Available quantity: 150,000 MT/ year.
Delivery: Within 10 days after contract confirmation.
Application field: Used as a flavor enhancer, coloring, preservative, detergent, cleaner, also used in pharmaceutical, cosmetic, industrial and chemical processing.
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Items |
Specification |
Assay |
99.5-101.0% |
Water |
7.5-9.0% |
Sulphate |
150 ppm max |
Oxalate |
100 ppm max |
Calcium |
200 ppm max |
Iron |
50 ppm max |
Chloride |
50 ppm max |
Sulphated ash |
0.1% max |
Heavy metal(as Pb) |
5 ppm max |
Arsenic (As) |
1 ppm max |
Bacteria endotoxin |
0.5 IU/mg max |
Test Items |
Specification |
Results |
Characters |
Colourless Translucent Crystals Or As White, Fine, Crystalline Powder |
Colourless Translucent Crystals Or As White, Fine, Crystalline Powder |
Identification |
Pass Test |
Passes Test |
Clarity And Colour Of Solution |
Pass Test |
Passes Test |
Content |
99.5-100.5% |
100.10% |
Moisture |
≤0.5% |
0.10% |
Oxalic Acid |
≤100mg/Kg |
<100mg/Kg |
Sulphate |
≤150ppm |
<150ppm |
Readily Carbonisable Substances |
Abs ≤0.52 |
<0.52 |
Tra ≥30% |
>30% |
Residue On Ignition(Sulphated Ash) |
≤0.05% |
0.01% |
Heavy Metals |
≤10ppm |
<5ppm |
Arsenic |
≤1mg/Kg |
<0.1mg/Kg |
Lead |
≤0.5mg/Kg |
<0.1mg/Kg |
Mercury |
≤1mg/Kg |
<0.1mg/Kg |
Aluminium |
≤0.2ppm |
<0.2ppm |
Bacterial Endotoxins |
≤0.5Iu/Mg |
<0.5Iu/Mg |
Isociric Acid (Relative Substances) |
Pass Test |
Pass Test |
Polycyclic Aromatic Hydrocarbon |
Pass Test |
Pass Test |
Trilaurylamine |
≤0.1mg/Kg |
<0.1mg/Kg |
Sterility |
Pass Test |
Pass Test |
Barium |
Pass Test |
Pass Test |
Calcium |
≤200ppm |
<200ppm |
Iron |
≤50ppm |
<50ppm |
Chloride |
≤50ppm |
<50ppm |
PRODUCT USAGE
In food additives, citric acid is mainly used in carbonated beverages, juice drinks, lactic acid drinks and other refreshing beverages and pickled products, and its demand varies depending on the seasonal climate. Citric acid accounts for about 2/3 of the total consumption of acidulants.
Adding citric acid to canned fruit can maintain or improve the flavor of the fruit, increase the acidity of certain fruits with lower acidity when canned (lower pH), weaken the heat resistance of microorganisms and inhibit their growth, and prevent bacterial swelling and damage that often occurs in canned fruits with lower acidity.
Adding citric acid as an acidulant in candy is easy to harmonize with fruit flavor. In-gel food such as jam, jelly in the use of citric acid can effectively reduce the negative charge of pectin, so that the pectin molecules between the hydrogen bonding and gel.
In the processing of canned vegetables, some vegetables are an alkaline reaction, the use of citric acid as a pH adjuster, not only can play a flavoring role but also maintain its quality.
Citric acid has a chelating effect and adjusting pH-worthy characteristics make it in the processing of frozen food can increase the performance of antioxidants, inhibit enzyme activity, and extend the shelf life of food.