Disodium Phosphate Anhydrous (Na₂HPO₄)

Disodium Phosphate Anhydrous (Na₂HPO₄)

Food-Grade Inorganic Phosphate for Buffering, Emulsifying & Stabilising Applications

Product Identification

Catalog Number: ASC-1073
Chemical Name: Disodium Hydrogen Phosphate (Anhydrous)
CAS Number: 7558-79-4
Molecular Formula: Na₂HPO₄
Molecular Weight: 141.96 g/mol

Product Overview

Disodium Phosphate Anhydrous (Na₂HPO₄) is a food-grade inorganic phosphate salt widely used across food manufacturing, pharmaceutical formulation, water treatment, and industrial processing. It is supplied as a white, odourless, crystalline powder with high water solubility and reliable buffering capacity in mildly alkaline systems.

The compound functions effectively as a buffering agent, emulsifier, stabiliser, and pH regulator, making it a key ingredient in processed foods, dairy products, pharmaceutical preparations, and technical formulations requiring controlled pH and ionic strength.

Ausamics Disodium Phosphate Anhydrous is manufactured and supplied to deliver consistent purity, predictable performance, and full batch documentation suitable for professional and regulated applications.

Synonyms & Identifiers

Disodium hydrogen phosphate
Sodium phosphate dibasic (anhydrous)
DSP (Anhydrous)

Key Features & Benefits

Food-grade quality with defined purity specifications
Excellent buffering capacity in alkaline pH ranges
Highly soluble in water for easy formulation
Odourless and chemically stable
Suitable for food, pharmaceutical, and technical use
Supplied with Certificate of Analysis (COA)

Typical Applications

Food & Beverage Manufacturing

Buffering agent, emulsifier, and stabiliser in processed cheese, dairy products, bakery items, beverages, and formulated foods, in accordance with FSANZ, Codex Alimentarius, and applicable international regulations.

Pharmaceutical & Nutritional Applications

Buffering agent in pharmaceutical formulations
Component of nutritional supplements and excipient systems

Water Treatment

Corrosion inhibitor and pH control agent in potable and industrial water systems, subject to regulatory approval.

Industrial & Technical Use

Detergent formulations
Textile processing
Flame retardant and surface treatment formulations

Chemical & Functional Principle

Disodium Phosphate Anhydrous acts as a buffering salt by establishing equilibrium between hydrogen phosphate and dihydrogen phosphate species in solution. This buffering action helps maintain stable pH conditions, improves formulation stability, and enhances emulsification and processing performance in aqueous systems.

Typical Quality Parameters

Purity: ≥ 99 % (Food Grade)
pH (1 % solution): 8.0 – 9.0
Solubility: Freely soluble in water
Alcohol Solubility: Practically insoluble

(Exact analytical values are provided in the batch-specific Certificate of Analysis.)

Physical Properties

Appearance: White crystalline powder
Odour: Odourless
Taste: Slightly saline
Hygroscopicity: Low

Storage & Stability

Store in a cool, dry place away from moisture
Keep container tightly closed when not in use
Protect from contamination
Shelf life: Stable under recommended storage conditions

Regulatory & Compliance Information

Permitted as a food additive and processing aid in Australia and many international markets, subject to regulatory limits
Recognised under Codex Alimentarius standards
Regulatory status may vary depending on country and application

Supplied with batch-specific Certificate of Analysis (COA)
SDS and technical documentation available upon request

Intended Use

Supplied as a food-grade phosphate suitable for food, beverage, pharmaceutical, water treatment, 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: 2835.22.00
Phosphates of sodium