Citric Acid Monohydrate
Citric Acid Monohydrate Powder (BP, USP, FCC, E330)
Food-Grade Organic Acid for Food, Pharmaceutical & Technical Applications
Product Identification
Product Name: Citric Acid Monohydrate
Chemical Name: 2-Hydroxy-1,2,3-propanetricarboxylic acid monohydrate
CAS Number: 5949-29-1
E Number: E330
Pharmacopoeial Grades: BP, USP, FCC
Molecular Formula: C₆H₈O₇ · H₂O
Molecular Weight: 210.14 g/mol
Form: Crystalline powder
Product Overview
Citric Acid Monohydrate is a food-grade organic acid widely used as an acidulant, buffering agent, chelating agent, and flavour enhancer across food, beverage, pharmaceutical, cosmetic, and technical applications. The monohydrate form contains one molecule of water of crystallisation, providing excellent stability, controlled hygroscopicity, and consistent handling properties.
Manufactured to comply with BP, USP, and FCC specifications, Ausamics Citric Acid Monohydrate delivers high purity, reliable acidity, and broad regulatory acceptance. Its versatility and predictable performance make it a core ingredient in modern formulation and processing environments.
Synonyms & Identifiers
Citric acid monohydrate
E330
2-Hydroxypropane-1,2,3-tricarboxylic acid monohydrate
Key Features & Benefits
Food-grade quality meeting BP, USP, and FCC standards
Monohydrate form for improved stability and handling
High purity and consistent acidic profile
Excellent solubility in water
Versatile functionality across food, pharmaceutical, and industrial uses
Supplied with Certificate of Analysis (COA)
Typical Applications
Food & Beverage Manufacturing
Acidulant and flavour enhancer in beverages, confectionery, bakery products, sauces, preserves, and processed foods
pH adjustment and buffering in formulated food products
Preservative support and flavour profile enhancement
Pharmaceutical & Nutritional Applications
Excipient and pH regulator in pharmaceutical formulations
Effervescent tablets, powders, and granules
Nutritional supplements and medical nutrition products
Biotechnology, Laboratory & Technical Use
Chelating agent in biochemical and chemical applications
Preparation of buffers and laboratory reagents
General formulation and processing applications
Chemical & Functional Principle
Citric acid is a weak tricarboxylic organic acid that functions as an effective pH regulator and chelating agent. Its multiple carboxyl groups enable metal ion binding and formulation stabilisation, while its mild acidity allows precise control of pH in aqueous systems. The monohydrate form provides predictable moisture content and improved processing behaviour.
Typical Specifications
Assay (Citric Acid): ≥ 99.5 %
Appearance: White crystalline powder
Solubility: Freely soluble in water
Water Content: Conforms to monohydrate specification
(Exact analytical values are provided in the batch-specific Certificate of Analysis.)
Physical Properties
Appearance: White crystalline powder
Odour: Odourless
Taste: Strongly acidic
Hygroscopicity: Slight
Storage & Stability
Store in a cool, dry place
Keep container tightly closed
Protect from moisture and direct sunlight
Stable under recommended storage conditions
Regulatory & Compliance Information
Permitted food additive (E330) in Australia and internationally
Complies with BP, USP, and FCC monographs
Recognised under Codex Alimentarius standards
Regulatory status may vary by country and intended application
Supplied with batch-specific Certificate of Analysis (COA)
SDS and technical documentation available upon request
Intended Use
Supplied as a food-grade citric acid monohydrate suitable for food, beverage, pharmaceutical, cosmetic, laboratory, and industrial applications where permitted.
Final product suitability, use levels, and regulatory compliance must be determined by the end user in accordance with FSANZ, Codex Alimentarius, and other applicable national regulations.
Not intended for therapeutic or medicinal use.
Quality & Supply Assurance
Manufactured and packed under controlled conditions
Consistent batch-to-batch quality
Technical support provided by Ausamics Life Science
Customs & Trade Information
HS / AHECC Code: 2918.14.00
Citric acid