Mono-ammonium Phosphate（MAP)-industrial Application

Product: Mono-ammonium Phosphate(MAP), Ammonium dihydrogen phosphate

 

Molecular formula: NH₄H₂PO₄

CAS:7722-76-1

Molecular weight:115.03

 

Monoammonium phosphate is a colourless crystalline solid with an irritating odour at room temperature.

Below is a brief description of the properties, uses, preparation and safety information of monoammonium phosphate:

 

Properties:
1, monoammonium phosphate is soluble in water, soluble in acid, insoluble in organic solvents.
2, in the air will deliquesce and change into ammonia and phosphate containing several different oxidation levels.
3, monoammonium phosphate is a weakly acidic salt that can react with bases.

 

What is the role of ammonium dihydrogen phosphate in industry?

1. Firefighting field
1) Fire extinguishing agents
Ammonium dihydrogen phosphate dry powder fire extinguishing agent is highly efficient, safe and clean, universal, and at the same time environmentally friendly, which is generally welcomed by the domestic and foreign fire fighting community.

2) Flame retardant
Ammonium dihydrogen phosphate, as a basic raw material for the preparation of new type of excellent inorganic flame retardant ammonium polyphosphate or composite flame retardant, has a good application in the field of flame retardant. Using ammonium dihydrogen phosphate and urea as raw materials, after foaming, polymerisation and curing to get I-type ammonium polyphosphate products, the product polymerisation degree is 52.08, the ammonia nitrogen and effective phosphorus mass fraction to meet the national standards, respectively, 14.32% and 69.53%, flame retardant rate of 49.94%.

2. Material field
1) Glass materials
Phosphate glass due to the advantages of low glass transition temperature, moderate phonon energy, high coefficient of thermal expansion, high solubility of rare earth ions, rare earth ions in which the spectral performance is good, low nonlinear refractive index, ultraviolet transmittance, low dispersion, etc., has become the use of more optical glass media, in the coloured filters, optical fibres and laser materials and other fields are widely used; However, phosphate glass melting of the refractory crucible of erosion However, phosphate glass melting erosion of refractory crucible and poor stability, to a certain extent, hindered their application.

2) Lithium battery
Lithium iron phosphate material has become the preferred cathode material for lithium-ion power batteries and a hot spot for new energy research in various countries due to its simple preparation process, long product cycle life, high temperature stability, low cost and high safety performance.

 

 

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