Customization: | Available |
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CAS No.: | 5949-29-1/77-92-9 |
Formula: | C6h8o7H2O/C6h8o7 |
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Citric acid anhydrous or monohydrate, the most widely used acidulant to give a sour taste in food and beverage, also acts as a preservative, PH buffer, antioxidant and chelating agent.
The European food additive number for it is E330.
China is the biggest manufacturer of citric acid in the world and exported around 1 million tons in 2019.
Brands available: Ensign, TTCA, RZBC, Lemon Star, Taihe, etc.
Considering the market price and supply situation, we'll offer you the best choice to supoort your business.
Anhy | Mono | |
According to | BP98 | BP98 |
Tests | Specifications | Specifications |
Characteristics | White crystals | Colourless crystals or white crystalline powder, efflorescent |
Solubility | Conforming with test | |
clarity and colour of solution | Conforming with test | Conforming with test |
Assay | 99.5%-101% | 99.5%-101% |
Water | 1% Max | 7.5%-9% |
Sulfate | 150ppm Max | 150ppm Max |
Readily carbonisable substances | Conforming with test | Not deeper than specifications |
Barium | Conforming with test | Conforming with test |
Calcium | 200ppm Max | 200ppm Max |
Lead(PB) | 0.5ppm Max | 1ppm Max |
Heavy metals | 10ppm Max | |
Iron | 50ppm Max | 50ppm Max |
Chloride | 50ppm Max | 50ppm Max |
Oxalate | 100ppm Max | 350ppm Max |
Aluminum | 0.2ppm Max | 0.2ppm Max |
Bacterial endotoxins | 0.5 I.U./mg Max | 0.5 I.U./mg Max |
Arsenic | 3ppm Max | 1ppm Max |
Me. | 1ppm Max | 1ppm Max |
Sulfated ash | 0.05% Max | |
Tridodecylamine | 0.1ppm Max | |
Arganic volatile impurities | Conforming with test |
Food & Beverage
It is the common organic acid added to food together with malic acid and tartaric acid. Food grade citric acid can be used for an acidulant, preservative, antioxidant and chelating agent in food.
Cosmetics
It functions as a buffering, chelating and masking agent in cosmetic and personal care products,such as shampoo.
Pharmaceutical
Citric acid can chelate metal ions, buffer pH and impart flavor in the pharmaceutical industry. It can also be used as an external anticoagulant as it can prevent blood coagulation by lowering the concentration of calcium ions in blood through binding with calcium ions which will form a soluble complex but difficult to dissociate.
Industry uses
1. Water softener
Citric acid's ability to chelate metals makes it used as a water conditioner in the treatment of industrial water and drinking water. Like EDTA, it is a chelating agent that can bind metal ions, commonly calcium and magnesium in water and remove them from pipes, household appliances, and etc.
2. Household cleaner
Citric acid can be used in household cleaning products, acting as a multifunctional cleaner for dishwasher and window, also for dish soaps, laundry detergents, rust removers and so on.