Disodium hydrogen phosphate heptahydrate

Disodium hydrogen phosphate heptahydrate (CAS 7782-85-6), also sold as sodium phosphate dibasic heptahydrate, is an inorganic phosphate salt used across food, pharmaceutical, and industrial sectors.

It functions primarily as a pH buffer, sequestrant, and dispersing agent in aqueous systems. In water treatment, it controls scale formation and sequesters metal ions to protect boiler and cooling systems.

Food and beverage manufacturers use it to stabilize emulsions, regulate acidity, and improve texture in processed products. Pharmaceutical formulators rely on it to prepare buffered solutions.

It is essential for maintaining pH stability in injectable and topical preparations. In textile and paper processing, it acts as a sequestrant to prevent metal ion interference during dyeing and bleaching operations.

Disodium hydrogen phosphate heptahydrate is supplied as a white crystalline powder or granules. It is available in food-grade (FCC) and pharmaceutical-grade (USP, BP, Ph. Eur.) specifications.

It is also offered in technical-grade specifications to meet the requirements of different regulated and industrial applications. Bulk quantities are standard for industrial buyers.

Smaller packaging is available for pharmaceutical and laboratory use. This versatile chemical ensures consistency and quality across a wide range of manufacturing and processing environments.