Citric acid monohydrate

Properties:

At room temperature, citric acid is a white crystalline powder. It can exist either in an anhydrous (water-free) form or as a monohydrate. The anhydrous form crystallizes from hot water, whereas the monohydrate forms when citric acid is crystallized from cold water. The monohydrate can be converted to the anhydrous form by heating it above 74 c. Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 degrees celsius. In chemical structure, citric acid shares the properties of other carboxylic acids. When heated above 175 c, it decomposes through the loss of carbon dioxide and water.



1.Citric Acid Monohydrate

Specification:

Characters: A white, crystalline powder, colorless crystals or granules

Identification: To pass test

Appearance of solution: To pass test

Readily carbonisale substances: To pass test

Oxalic acid: Max. 350 ppm

Aluminium: Max. 0.2 ppm

Sulphates: Max. 150 ppm

Heavy metals: Max. 10 ppm

Water: 7.5%~9.0%

Sulphated ash: Max. 0.1%

Bacterial endotoxins: To pass test

Assay: 99.0%~100.5%



2.Citric Acid Anhydrous



Specification:

Definition complies with the test

Characters white, crystalline powder, colorless crystals or granules

Identification complies with the test

Assay 99.5%~100.5%

Loss on drying ≤ 0.5%

Readily carbonisable substances: Pass the test

Sulfate ash ≤ 0.1%

Iron ≤ 50ppm

Chloride ≤ 50ppm

Oxalate ≤ 300ppm

Sulphate ≤ 150ppm

Heavy metals ≤ 10ppm

Arsenic ≤ 4ppm

Calcium ≤ 200ppm

Barium pass the test

Tridodecylamine ≤ 0.1ppm



Packing: 25kg/kraft bag or as required.