Description

Sodium Ammonium Hydrogen Phosphate Tetrahydrate is a high-purity inorganic salt with versatile chemical functionality. This compound is valued for its role as a buffering agent and a source of phosphate and ammonium ions in analytical and industrial processes. It is essential for laboratories, pharmaceutical manufacturers, and companies involved in water treatment and specialty chemical synthesis.

Application

• Analytical Chemistry: Used as a primary standard in analytical procedures and as a buffer component in various chemical analyses.
• Pharmaceutical Manufacturing: Serves as an excipient or a buffering agent in certain drug formulations and fermentation processes.
• Microbiology & Biotechnology: Acts as a nutrient source in culture media for microbial growth and cell culture applications.
• Water Treatment: Functions as a corrosion inhibitor and scale prevention agent in boiler water and cooling systems.
• Electroplating & Surface Treatment: Employed in metal finishing baths to control pH and improve coating quality.
• Flame Retardancy: Used as a component in formulations for flame-retardant materials.
• Food Additive (FCC Grade): When meeting food-grade specifications, it can be used as an emulsifier, pH adjuster, or nutrient supplement.
• Laboratory Reagent: A common reagent for educational and research purposes in chemistry and biology labs.

Basic Information

Product Name	Sodium Ammonium Hydrogen Phosphate Tetrahydrate
CAS No.	7783-13-3
Molecular Formula	NaNH4HPO4·4H2O
Molecular Weight	209.07 g/mol
Synonyms	Ammonium Sodium Phosphate; Sodium Ammonium Phosphate Tetrahydrate; Ammonium Sodium Hydrogen Phosphate; Microcosmic Salt; Sodium Ammonium Phosphate; Phosphoric acid, ammonium sodium salt, tetrahydrate; Ammonium sodium phosphate (1:1:1), tetrahydrate; UNII-4BQ15J2J8I
EINECS	231-987-8

Quality Control

Our Sodium Ammonium Hydrogen Phosphate Tetrahydrate is manufactured under strict quality management systems. We offer various grades, including Technical, Reagent, and Food Grade (FCC), each meeting stringent internal specifications. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles to ensure compliance with your application requirements.

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); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (NaNH4HPO4·4H2O)	≥ 98.0% - 102.0%
pH (5% solution)	7.5 - 8.5
Loss on Drying	30.0% - 35.0%
Insoluble Matter	≤ 0.01%
Chloride (Cl)	≤ 0.001%
Sulfate (SO4)	≤ 0.005%
Heavy Metals (as Pb)	≤ 10 ppm

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