Description

Sodium Phosphate, Dibasic CAS NO 7558-79-4 is an essential inorganic salt widely used as a buffering agent, emulsifier, and nutrient source. Its consistent quality and reliable performance make it a critical component for ensuring process stability and product efficacy across multiple industries. This versatile compound is primarily sought by manufacturers in the food and beverage, pharmaceutical, and industrial water treatment sectors.

Application

• Food & Beverage Industry: Used as an emulsifying salt in processed cheese, a pH buffer and mineral supplement in beverages, and a texturizer in meat products.
• Pharmaceutical Manufacturing: Serves as an excipient in tablet formulations, a buffering agent in parenteral and oral solutions, and a source of phosphorus in nutritional supplements.
• Water Treatment: Acts as a corrosion inhibitor and scale control agent in boiler water and industrial cooling systems.
• Industrial Processes: Employed in metal surface treatment for cleaning and phosphating, and as a laboratory reagent for preparing buffer solutions.
• Animal Feed: Utilized as a nutritional phosphorus supplement in feed premixes.

Basic Information

Product Name	Sodium Phosphate, Dibasic
CAS No.	7558-79-4
Molecular Formula	Na2HPO4
Molecular Weight	141.96 g/mol (anhydrous)
Synonyms	Disodium hydrogen phosphate; Disodium phosphate; DSP; Sodium hydrogen phosphate; sec-Sodium phosphate; Disodium monohydrogen phosphate; Disodium orthophosphate; E339(ii)
EINECS	231-448-7

Quality Control

Our Sodium Phosphate, Dibasic is manufactured under a stringent quality management system. We offer grades compliant with major pharmacopoeial standards including USP-NF, Ph. Eur., and FCC for food and pharmaceutical applications. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and safety parameters, ensuring traceability and regulatory compliance for our global partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (Na2HPO4)	98.0 - 101.0 %
pH (1% solution)	8.5 - 9.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.2 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.