Citric Acid Monohydrate, CAM

Product Overview

Citric Acid Monohydrate (monohydrate citric acid, CAS 5949-29-1) is a white to colorless crystalline powder (orthorhombic crystals) that functions as a natural acidulant, preservative, antioxidant and chelating agent. The monohydrate form retains about 7.5–9.0% moisture and is commonly used where controlled moisture content is acceptable or preferred (food, beverage, pharmaceutical excipients and many industrial uses).

Citric acid monohydrate occurs as colorless or translucent crystals or as a white crystalline, efflorescent powder. It is odorless and has a strong acidic taste. The crystal structure is orthorhombic. monohydrate crystals lose water of crystallization in dry air or when heated to about 40 to 50℃. Citric acid monohydrate softens at 75℃ and melts at approximately 100℃. It serves as a natural preservative and is commonly utilized to contribute an acidic or sour taste to foods and soft drinks.

Key Specifications

Melting Point	135 °C
Boiling Point	56 °C760 mm Hg(lit.)
Bulk Density	800-1000kg/m3
Density	0.791 g/mL at 25 °C(lit.)
Vapor Density	2 (vs air)
Vapor Pressure	184 mm Hg ( 20 °C)
Refractive Index	n20/D 1.359(lit.)
Fp	1 °F
Storage Temp.	No restrictions.
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