Magnesium Biphosphate - Monobasic:
acid or primary magnesium phosphate. MgH4(PO4)2 3H2O; mol. wt. 272.36. Anhydrous salt 80.16%, H2O 19.84%, Mg 8.93%, MgO 14.80%, PO4 69.75%.White powder. Soluble in water.
Use: In fireproofing wood. Commercially available.
Color Pictures of Mineral Defeciencies in Plants
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