Citric Acid Monohydrate

Citric Acid Monohydrate is a naturally occurring fruit acid, produced commercially by microbial fermentation of a carbohydrate substrate. Citric acid is the most widely used organic acid and pH-control agent in foods, beverages, pharmaceuticals and technical applications.

Citric Acid Monohydrate

CAS Registry Number:
[5949-29-1] - Monohydrate

Chemical Formula:




Citric acid monohydrate occurs as colourless crystals or as white, crystalline powder with a strongly acidic taste. It is efflorescent in dry air, very soluble in water, freely soluble in ethanol (96 %) and sparingly soluble in ether.

Citric acid monohydrate is non-toxic and has a low reactivity. It is chemically stable if stored at ambient temperatures. Citric acid monohydrate is fully biodegradable and can be disposed of with regular waste or sewage.

Jungbunzlauer citric acid monohydrate is supplied in accordance with the current requirements of the European Pharmacopoeia (Ph. Eur), the United States Pharmacopeia (USP), the Food Chemicals Codex (FCC), and the Commission Regulation (EU) No. 231/2012.

Citric acid monohydrate is available in various granulations.


Colourless or white
Crystals or crystalline powder
Strongly acidic (pH in a 5 % solution approx. 1.8)
Typical, practically odourless
Very soluble in water
Freely soluble in ethanol (96 %)
Sparingly soluble in ether
Low reactive
Chemically and microbiologically stable
Fully biodegradable

Main functions

pH adjuster
Chelating agent
Buffering agent
Flavour enhancer

Product Specification:   Download

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