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Ammonium polyphosphate CAS 68333-79-9 APP

Ammonium polyphosphate, abbreviated as APP, is a nitrogen-containing phosphate, a white powder. Ammonium polyphosphate can be divided into low, medium and high polymerization according to its polymerization degree. The larger the degree of polymerization, the smaller the water solubility. Crystalline ammonium polyphosphate is water insoluble and long chain polyphosphate. There are five variants from I to V type. Among them, the high degree of polymerization of crystalline type II ammonium polyphosphate has significant advantages in the field of polymer materials due to good water insolubility, high decomposition temperature, and good compatibility with polymer materials. Compared with halogenated flame retardants, crystalline type II ammonium polyphosphate has the characteristics of low toxicity, low smoke and inorganic, which is a new type of efficient inorganic flame retardant.


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Model:
68333-79-9
Brand:
boss chem
Code:
68333-79-9

Product Description

Ammonium polyphosphate APP

CAS No.68333-79-9

Alias: polyphosphoric acids ammonium salts;APP;APP-0;XAP-01;APP-3;APP-1;ammonium polyphosphate flame retardant;Ammonium polyphosphate

Molecular formula: H12N3O4P

Relative molecular mass: 149.086741

Structural formula:

68333-79-9

1. Performance and use:

Ammonium polyphosphate (APP) is an organic salt of polyphosphoric acid and ammonia. As a chemical, it is non-toxic, environmentally friendly and halogen-free.

Ammonium polyphosphate (APP) is most commonly used as a flame retardant, selection of the specific grade of ammonium polyphosphate can be determined by the solubility, Phosphorus content, chain length and polymerization degree. The chain length (n) of this polymeric compound can be linear or branched.

Ammonium polyphosphate is a specialty chemical that finds many different uses in key industries.

Ammonium Polyphosphate, is an environment-friendly and halogen-free flame retardant. It is the main constituent of many intumescent flame retardant systems: coatings, paints and engineering plastics. It is used to prepare 20% Phosphorous/Nitrogen containing flame retardants, it can be used solely or in conjunction with other materials in the flameproof treatment for textiles, papers, fibers and woods. Special treatment can be used to prepare 50% high concentration flameproof formulations required for special applications.

The most common ammonium polyphosphate fertilizers have a N-P2O5-K2O (nitrogen, phosphorus and potassium) composition of 10-34-0 or 11-37-0. Polyphosphate fertilizers offer the advantage of a high nutrient content in a clear, crystal-free fluid that remains stable within a wide temperature range and stores well for long periods. A variety of other nutrients mix well with polyphosphate fertilizers, making them excellent carriers of micronutrients typically needed by plants.

2. Technical indicators

Ammonium polyphosphate Basic information
Product Name:	Ammonium polyphosphate
CAS:	68333-79-9
MF:	H12N3O4P
MW:	149.086741
EINECS:	269-789-9
Mol File:	68333-79-9.mol
Ammonium polyphosphate Chemical Properties
storage temp.	−20°C
CAS DataBase Reference	68333-79-9
EPA Substance Registry System	Ammonium polyphosphates (68333-79-9)

Specification:

	Unit	Standard	Result
P Content	%	28.0-30.0	29.24
Decomposition temperature1% ℃	℃	≥ 280	302
Moisture content	%	≤0.25	0.12
PH Value		7.5-9.0	7.58
Average Particle size	um	≤15	14.23

3. Packaging and storage

APP solid is packaged in plastic woven bags lined with polyethylene bags, with a net weight of 25kg per bag, which can also be determined according to user needs.

Store in a cool and ventilated place indoors, avoid moisture and exposure, and the storage period is twelve months.

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