Ammonium Polyphosphate is a white, crystalline powder with excellent thermal stability and low solubility in water. It is widely used as a flame retardant in various applications due to its high efficiency and non-toxic nature.
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Molecular Formula
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CAS Number
Parameter | Value |
Physical Analytic Results | |
Purity | ≥ 99% |
pH (1% solution) | 5.5 – 7.5 |
Moisture Content | ≤ 0.5% |
Particle Size | 95% passes through 100 mesh |
EINECS Number | 269-789-9 |
HS Code | 28353900 |
Typical Certificate of Analysis (COA) | |
Appearance | White crystalline powder |
Assay | ≥ 99% |
Solubility | Slightly soluble in water |
Thermal Stability | Excellent |
Heavy Metals Report | |
Lead (Pb) | ≤ 2 ppm |
Arsenic (As) | ≤ 1 ppm |
Cadmium (Cd) | ≤ 1 ppm |
Mercury (Hg) | ≤ 0.1 ppm |
Ammonium Polyphosphate stands out due to its superior flame-retardant properties, high thermal stability, and non-toxic nature. Compared to other flame retardants, it is more economical and environmentally friendly. Its low solubility in water makes it ideal for applications requiring long-term stability.
Property | Ammonium Polyphosphate | Other Flame Retardants |
Thermal Stability | High | Moderate |
Toxicity | Non-toxic | Varies |
Cost | Economical | Higher |
Environmental Impact | Low | Varies |
Cas No: | 68333-79-9 |
Formula: | (NH4PO3)n |
Molecular Weight: | Variable |
Character: | White powder. Soluble in water. |
Packaging: | 25/50 Kg. HDPE bags with polyliner inside. |
Storage: | Store in a tightly closed container. |