Description

Sodium Phosphate Monobasic Monohydrate is a high-purity inorganic salt widely used as a buffering agent, nutrient, and sequestrant. Its consistent quality and reliable performance make it a critical raw material for ensuring process stability and product efficacy in sensitive formulations. This compound is essential for manufacturers in the pharmaceutical, food & beverage, and industrial water treatment sectors seeking a dependable source of monobasic phosphate.

Application

• Pharmaceutical Buffer & Excipient: Used in oral and parenteral formulations to maintain precise pH levels.
• Food Additive (FCC Grade): Functions as an emulsifier, pH regulator, and nutrient source in processed foods and beverages.
• Water Treatment Chemical: Acts as a corrosion inhibitor and sequestrant in boiler water and industrial cooling systems.
• Laboratory Reagent: Serves as a buffer component in molecular biology and analytical chemistry applications.
• Nutrient in Fermentation & Agriculture: Provides a bioavailable source of phosphorus in microbial culture media and fertilizer blends.
• Metal Surface Treatment: Used in cleaning and phosphatizing solutions for metal preparation prior to coating.

Basic Information

Product Name	Sodium Phosphate Monobasic Monohydrate
CAS No.	10049-21-5
Molecular Formula	NaH₂PO₄·H₂O
Molecular Weight	137.99 g/mol
Synonyms	Monosodium phosphate monohydrate; Sodium dihydrogen phosphate monohydrate; Primary sodium phosphate; MSP; NaH2PO4.H2O; Phosphoric acid, monosodium salt, monohydrate; EINECS 231-449-2
EINECS	231-449-2

Quality Control

Our Sodium Phosphate Monobasic Monohydrate is manufactured under a strict quality management system. Products are available in various grades, including Technical, Food (FCC), and Pharmaceutical (USP/EP) standards, each subject to rigorous analytical testing. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to ensure full traceability and compliance.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can lead to caking and reduced efficacy.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (NaH₂PO₄·H₂O)	98.0 - 102.0 %
pH (1% Solution)	4.1 - 4.5
Loss on Drying	10.0 - 15.0 %
Insoluble Matter	≤ 0.2 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Fluoride (F)	≤ 10 ppm

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