Polyphosphate press, also known as ammonium polyphosphate, is a mixture of ammonium orthophosphate and a variety of ammonium polyphosphate, containing ammonium polyphosphate is mainly ammonium pyrophosphate and ammonium tripolyphosphate, ammonium tetraphosphate, longer chain only a small amount of ammonium polyphosphate.Soluble in water, solubility is greater than ammonium orthophosphate, can also chelate metal cation, so that it remains in solution.
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Specification
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Ammonium Polyphosphate(APP)
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Appearance
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White Powder or Cystal
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Type
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APP1
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APP11
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Total Nitrogen %≥
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14
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14
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P2O5%≥
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69
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71
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Average Polymerization(n)%≥
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50
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1000
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PH (1% water solution )
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5.0-7.0
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5.5-7.5
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Particle Size(pass 45um) %≥
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90
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–
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Water Solubility %≤
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0.5
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Moisture%≤
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–
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0.25
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Density(g/ml)
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0.5-0.7
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