Description

Ammonium Dihydrogen Orthophosphate is a high-purity, water-soluble inorganic salt that serves as a crucial source of both nitrogen and phosphorus. This compound is valued for its versatility and effectiveness across a wide range of industrial and technical processes. It is an essential raw material for manufacturers in the fertilizer, food & beverage, pharmaceutical, and flame-retardant industries, where consistent quality and reliable supply are paramount.

Application

• Fertilizer Industry: A key component in the formulation of high-efficiency, water-soluble NPK fertilizers and nutrient solutions for fertigation and hydroponics.
• Food & Beverage: Used as a food additive (E342(i)) for its leavening, buffering, and yeast nutrient properties in baked goods and beverages.
• Pharmaceuticals: Employed as an excipient in tablet formulations and as a source of phosphate in nutritional supplements and intravenous solutions.
• Flame Retardants: Acts as an effective intumescent flame retardant for materials like wood, paper, and textiles.
• Water Treatment: Functions as a corrosion inhibitor and scale preventative agent in industrial water treatment systems.
• Laboratory & Analytical Reagent: Serves as a buffer solution component and a standard in analytical chemistry procedures.
• Electronics: Used in the production of specialty glasses and in the surface treatment of electronic components.
• Yeast & Fermentation Nutrient: Provides essential phosphorus and nitrogen to support microbial growth in fermentation processes for bio-ethanol and other products.

Basic Information

Product Name	Ammonium Dihydrogen Orthophosphate
CAS No.	7722-76-1
Molecular Formula	NH4H2PO4
Molecular Weight	115.03 g/mol
Synonyms	Monoammonium Phosphate (MAP); Ammonium Phosphate Monobasic; Primary Ammonium Phosphate; Ammonium Biphosphate; ADP; Ammonium Dihydrogenphosphate; Phosphoric Acid, Monoammonium Salt; NH4H2PO4
EINECS	231-764-5

Quality Control

Our Ammonium Dihydrogen Orthophosphate is manufactured under a strict quality management system to ensure batch-to-batch consistency and compliance with relevant industry standards, including Food Chemical Codex (FCC), USP/NF, and ACS grades where applicable. Each production lot undergoes rigorous analytical testing. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available for every shipment to support your quality assurance protocols.

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). Keep the container tightly sealed when not in use to prevent caking and degradation due to absorption of atmospheric moisture. Store away from incompatible materials such as strong bases.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (NH4H2PO4)	≥ 98.0 %
pH (5% solution)	3.8 - 4.5
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.