XS-APPII Ammonium Polyphosphate Series

Ammonium Polyphosphate is a phosphorus-nitrogen compound halogen-free environment-friendly flame retardant. The product is white powder with high phosphorus and nitrogen content, low water solubility, high stability and good flame retardant effect. It can effectively synergize flame retardant with other flame retardants.


Our company has independent ammonium polyphosphate synthesis technology, which has low stability, low viscosity, good dispersibility, low water solubility, and excellent resistance to precipitation and migration. The degree of polymerization is high, and the molecular weight distribution range of high polymerization is concentrated.


  • EINECS NO: 269-789-9 

  • CAS NO: 68333-79-9

  • Chemical formula: (NH4PO3)n (n≥1000)


Chemical structure:

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XS-APPII Ammonium Polyphosphate Series
Additional Information

Product and usage characteristics

XS-APPII-040

XS-APPII-100

XS-APPII-200

XS-APPII-400D

Phosphorus content %

30.5~32.5

27.0～30.5

29.5～30.0

2.07～30.0

Nitrogen content %

14～15

14～17

13～15

13～15

Chroma

88

≥90

≥88

75

Moisture content %

≤0.5

≤0.5

≤0.5

≤0.5

Decomposition temperature ℃

≥260

≥260

≥260

≥260

Density g/cm3, 25℃

1.9

1.9

1.9

1.9

Bulk density

≈0.7

≈0.7

≈0.7

≈0.8

D50 um

10～20

10～20

10～20

≤22

pH

5.5～7.5

6.5～9.5

6.5～8.5

6.5～8.5

Viscosity MPa.s

≤100

≤50

≤50


Water solubility

≤0.5

≤0.3

≤0.5

≤0.3

Dispersion

★★★★

★★★★

★★★★★

★★★★★

Recommended use

Coatings/Thermosetting Resins/Rubber

Coatings/Thermosetting Resins/Rubber

Silicone rubber/Coating

Epoxy resin

Can use

A / B / C

B / C

B / C

B

Application areas: A—thermoplastic material  B—thermosetting material and adhesive  C—paint coating