Adipic Acid USP

AbstractAdipic Acid

Adipic acid or hexanedioic acid is the organic compound with the formula C6H10O.From an industrial perspective, it is the most important dicarboxylic acid. It occurs as white crystalline powder.



Small but significant amounts of adipic acid are used as a food ingredient as a flavorant and gelling aid. It is used in some calcium carbonate antacids to make them tart. As an acidulant in baking powders, it avoids the undesirable hygroscopic properties of tartaric acid.



Chemical Name: Adipic Acid

Mol. Formula: C6H10O4

Mol. Weight: 146.14 g/mol

CAS No.: 124-04-9


General Specifications

Test Specification
Characters It occurs as white crystalline powder

Test A


a)      Infrared Absorption

Solubility Freely soluble in alcohol and in methanol; soluble in boiling water and in acetone; slightly soluble in water
Residue on ignition Not more than 0.1%
Limit of Nitrates Not more than 30 ppm
Heavy metals Not more than 10 ppm
Chlorides Not more than 0.02%
Sulfates Not more than 0.05%
Iron Not more than 10 ppm
Melting range or temperature 151°–154°C
Loss on drying Not more than 0.2%
Residual solvents Meets the requirements
Assay Not less than 99.0% and not more than 101.0% on the dried basis


Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


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We observe WHO Good manufacturing practice and Good laboratory practice.

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