I. PROPERTIES
a. Appearance: White crystal/powder.
b. Solubility: Insoluble in water, insoluble in alcohol, Its water solution appears weak acid.
C. Molecular formula: Al(H2PO2)3
d. Structural formula:
e. Molecular weight: 221.95
f. CAS NO.: 7784-22-7
II. Quality standard
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Item
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Specification
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Al(H2PO2)3Content
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97-99% Min.
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Particlesize(D50 μm)
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50 Max.
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The initial thermal decomposition temperature
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≥280°C
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Phosphide(%)
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41.9±0.5 %
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Aluminum salt(%)
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12.2±0.5%
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Moisture(%)
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≤0.5%
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PH (20 °C, 100 g/l)
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3-5
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Ⅲ. Usage
The product is suitable in Flame retardant modification of PBT, PET, TPU, ABS. Using an appropriate amount of stabilizer agent, coupling agent mixed with P-N flame retardant as APP, MC or MCA in usage. 8%-12% can be satisfactory for polyester or polyester type TPU, 25%-35% can be satisfactory for SEBS.
Ⅳ. Package
In 25kg kraft paper bag, inner lined with PVC bag, or as customer required.
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