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, analytical chemistry, and specialized manufacturing sectors requiring precise reagent-grade materials.

Application

• Analytical Reagent: Used as a buffer component and standard in various chemical analyses and titrations.
• Microscopy & Histology: Employed in staining solutions and buffer preparations for biological sample processing.
• Pharmaceutical Intermediates: Serves as a starting material or catalyst in the synthesis of certain active pharmaceutical ingredients (APIs).
• Water Treatment: Acts as a corrosion inhibitor and scale prevention agent in boiler water and cooling systems.
• Flame Retardant Formulations: Provides a source of phosphorus and nitrogen in certain intumescent coatings and materials.
• Electroplating & Metal Finishing: Used in electrolyte baths for surface treatment and coating processes.
• Fertilizer & Agricultural Research: Applied in controlled nutrient studies and as a component in specialized fertilizer blends.
• Food Additive (FCC Grade): Functions as an emulsifier, nutrient, or pH control agent in food processing applications.

Basic Information

Product Name	Sodium Ammonium Hydrogen Phosphate Tetrahydrate
CAS No.	51750-73-3
Molecular Formula	NaNH4HPO4·4H2O
Molecular Weight	209.07 g/mol
Synonyms	Ammonium Sodium Hydrogen Phosphate Tetrahydrate; Sodium Ammonium Phosphate; Microcosmic Salt; Ammonium Sodium Phosphate; Ammonium Disodium Phosphate; NaNH4HPO4·4H2O; Phosphoric acid, ammonium sodium salt, tetrahydrate; Disodium ammonium phosphate tetrahydrate
EINECS	Contact for details

Quality Control

Our Sodium Ammonium Hydrogen Phosphate Tetrahydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets specifications for purity, identity, and performance. Certificates of Analysis (COA) are provided with every shipment, detailing key parameters such as assay, loss on drying, and impurity profiles. We can supply grades compliant with various pharmacopeial standards (e.g., USP, BP, EP) or technical specifications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking. Keep away from incompatible materials such as strong acids.

Specification

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

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