Citric Acid Anhydrous

Acidulant: Provides a tart flavor and acts as a natural preservative in beverages and confectionery.
Descaling Agent: Primary active ingredient in industrial cleaners for removing scale from heat exchangers and pipes.
Pharma Buffering: Used in effervescent tablets and as a stabilizer for various medicinal formulations.

Citric Acid Anhy, 2-Hydroxypropane-1,2,3-tricarboxylic acid

CAS: 77-92-9
EC: 201-069-1
Food Code: E330
Sectors: Food & Nutrition, Home Care & Industrial Cleaning, Pharma & Healthcare

Citric Acid Anhydrous (CAS 77-92-9) is a high-purity organic acid supplied as a white crystalline powder in water-free form, used as a preservative and flavor enhancer in food and beverages, a chelating and descaling agent in cleaning products, and a pH regulator in pharmaceuticals. Its water-free nature makes it ideal for dry powder blends where moisture control is critical.

In the detergent industry, it is a powerful chelating agent that effectively removes mineral deposits and limescale. Its biodegradable profile makes it a preferred choice for sustainable, eco-friendly cleaning solutions.

It also serves as a critical pH regulator in pharmaceutical and personal care products. The white crystalline structure provides excellent flowability and storage stability for industrial manufacturing.

Typical Properties

Molecular formula	C₆H₈O₇
Molecular weight	192.12 g/mol
Appearance	White crystalline powder
Form	grit
Color	White
Odor	Odorless
Melting point	153 °C
Boiling point	310 °C (decomp)
Density	1.665 g/cm³ @ Temp: 20 °C
Water solubility	750 g/L (20 °C)
Flash point	100 °C
pH	1.0-2.0 (25°C, 1M in H2O)
GHS signal word	Warning · Irritant / harmful
Grades available	Food Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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