Calcium Metaphosphate Powder Description
Calcium metaphosphate can be divided into crystalline calcium metaphosphate and glassy calcium metaphosphate in nature. Crystalline calcium metaphosphate is white, and glassy calcium metaphosphate is colorless. Crystalline calcium metaphosphate is insoluble in water or citric acid while glassy calcium metaphosphate can slowly dissolve and hydrolyze in water.
Calcium Metaphosphate Powder Specifications
CAS Number
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123093-85-6
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Molecular formula
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Ca(PO3)2
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Molecular weight
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198.02
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Synonym
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calcium dimetaphosphate
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Appearance
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White powder
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Solubility
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Insoluble in water
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Content
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CaO:28%±0.5%, P2O5: 71%±1%, Fe2O3<2PPM, Cu<0.1PPM, Ni, Co, Mn, Pb, Cr<1PPM
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Calcium Metaphosphate Powder Applications
Crystalline calcium metaphosphate basically has no fertilizer effect, while glassy calcium metaphosphate is a good citrate-soluble phosphate fertilizer. It contains high phosphorus and the dosage is less than ordinary calcium. It is best applied in acidic soil, and it can be used as a base fertilizer with a long-lasting fertilizer effect. In addition, calcium metaphosphate can also be used as an analytical reagent.