Description

Ammonium Hydrogen Phosphonate is an inorganic salt of phosphorous acid, offering a stable source of phosphonate anions. This compound is valued for its role as a versatile intermediate and functional additive in several high-value industrial processes. It is particularly relevant for manufacturers in the flame retardant, water treatment, and specialty chemical synthesis sectors seeking effective phosphorus-based components.

Application

• Flame Retardant Synergist: Used in formulations for plastics, textiles, and coatings to enhance fire resistance.
• Water Treatment Agent: Acts as a scale and corrosion inhibitor in industrial cooling and boiler water systems.
• Chemical Intermediate: Serves as a key precursor in the synthesis of other phosphonate compounds and specialty chemicals.
• Wood Preservative Component: Incorporated into treatments to protect against fungal decay and insect damage.
• Paper & Pulp Industry: Used as a stabilizer and processing aid in certain paper manufacturing processes.
• Metal Surface Treatment: Employed in formulations for cleaning, phosphating, and providing temporary corrosion protection.

Basic Information

Product Name	Ammonium Hydrogen Phosphonate
CAS No.	13446-12-3
Molecular Formula	NH4HPO3
Molecular Weight	99.03 g/mol
Synonyms	Ammonium Phosphite; Monoammonium Phosphite; Ammonium Dihydrogen Phosphite; Phosphorous Acid Monoammonium Salt; MAP; Ammonium Hydrogen Phosphite; Ammonium Acid Phosphite
EINECS	236-638-2

Quality Control

Our Ammonium Hydrogen Phosphonate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial use to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (NH4HPO3)	≥ 98.0 %
pH (5% solution)	5.0 - 7.0
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.1 %

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