Description

Sodium Ammonium Phosphate is an inorganic salt with the chemical formula NaNH4HPO4. This versatile compound is valued for its role as a buffering agent and a source of both phosphate and ammonium ions in various industrial and analytical processes. It is essential for manufacturers and laboratories requiring precise pH control and nutrient delivery. Key industries that utilize this product include water treatment, agriculture, food processing, and analytical chemistry.

Application

• Analytical Chemistry & Buffer Solutions: Used as a primary standard in analytical procedures and to prepare buffer solutions for maintaining stable pH in laboratory analyses.
• Water Treatment: Acts as a corrosion inhibitor and scale control agent in boiler water and cooling tower systems.
• Agricultural & Horticultural Additives: Serves as a component in specialty fertilizers and nutrient solutions, providing a readily available source of phosphorus and nitrogen.
• Food Industry: Employed as a pH regulator, emulsifying salt, and nutrient supplement in certain food processing applications.
• Flame Retardant Formulations: Functions as a component in certain intumescent coatings and fire-resistant materials.
• Metal Surface Treatment: Used in plating baths and as a component in formulations for metal cleaning and phosphating.
• Pharmaceutical & Cosmetic Excipient: Can be used as a buffering agent in the formulation of specific pharmaceutical and cosmetic products.

Basic Information

Product Name	Sodium Ammonium Phosphate
CAS No.	13011-54-6
Molecular Formula	NaNH4HPO4
Molecular Weight	137.01 g/mol
Synonyms	Ammonium Sodium Phosphate; Sodium Ammonium Hydrogen Phosphate; Ammonium Sodium Hydrogen Phosphate; Microcosmic Salt; Sodium Ammonium Phosphate Tetrahydrate; NaNH4HPO4; Phosphoric acid, ammonium sodium salt
EINECS	235-860-2

Quality Control

Our Sodium Ammonium Phosphate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, impurity profiles, and physical characteristics. Our quality commitment ensures reliability for your critical applications in analytical, industrial, and food-grade processes.

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). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed after each use to prevent caking and degradation due to moisture absorption. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (NaNH4HPO4)	≥ 98.0 %
pH (5% solution)	7.5 - 8.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.05 %
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm

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