Description

Ammonium Hydrogen Orthophosphate is a high-purity inorganic salt widely used as a critical source of phosphorus and nitrogen. This compound is valued for its role as a buffering agent, nutrient supplement, and flame retardant synergist in various industrial and manufacturing processes. Key industries that rely on this material include agriculture, food processing, pharmaceuticals, and specialty chemicals.

Application

• Fertilizer & Nutrient Solutions: Serves as a highly efficient, water-soluble source of phosphorus and nitrogen in foliar feeds and hydroponic systems.
• Food Industry: Used as a food additive (E342(ii)) for its buffering, leavening, and yeast nutrient properties in baked goods and beverages.
• Pharmaceutical Manufacturing: Acts as a buffering agent and an excipient in certain medicinal formulations and dietary supplements.
• Flame Retardants: Functions as an effective synergist in intumescent coatings and fireproofing materials for textiles and wood.
• Laboratory & Analytical Reagent: Employed in buffer solutions for biochemical research and analytical chemistry applications.
• Water Treatment: Utilized in corrosion inhibition formulations for industrial water systems and boiler water treatment.
• Electroplating & Metal Treatment: Used in specific plating baths and as a component in metal surface treatment solutions.

Basic Information

Product Name	Ammonium Hydrogen Orthophosphate
CAS No.	7783-28-0
Molecular Formula	(NH4)2HPO4
Molecular Weight	132.06 g/mol
Synonyms	Diammonium Hydrogen Phosphate; Diammonium Phosphate (DAP); Ammonium Phosphate Dibasic; sec-Ammonium Phosphate; (NH4)2HPO4; Phosphoric Acid, Diammonium Salt; E342(ii)
EINECS	231-987-8

Quality Control

Our Ammonium Hydrogen Orthophosphate is manufactured under strict quality management systems. We offer grades suitable for food (FCC), technical, and reagent applications, with each batch undergoing rigorous analytical testing to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical specifications is provided with every shipment to guarantee compliance with your 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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent caking and degradation due to absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as (NH4)2HPO4)	≥ 98.0 %
pH (5% solution)	7.6 - 8.4
Loss on Drying	≤ 0.5 %
Water Insoluble Matter	≤ 0.1 %
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.