a. Appearance: White crystalline powder.b. Solubility: soluble in water, insoluble in alcohol, with the solubility of 16.7g/100g water. Its water solution appears weak acid.C. Molecular formula: Ca (H₂PO₂)₂d. Molecular weight: 170.06e. CAS NO.: 7789-79-9
a. Appearance: White crystalline powder.b. Solubility: soluble in water, insoluble in alcohol and aether.C. Molecular formula: Mg (H₂PO₂)₂d. Molecular weight: 154.28e. CAS NO.: 10377-57-8
a. Appearance: White crystal or powder.b. Solubility: Insoluble in water, insoluble in alcohol; its aqueous solution is weakly acidic.C. Molecular formula: Al(H₂PO₂)₃d. Molecular weight: 221.95e. CAS NO.: 7784-22-7
a. Appearance: White flowability powder.b. Solubility: Insoluble in water and organic solvent, soluble in strong acid and strong alkaline solution.C. Molecular formula: C12H30P3O6.Ald. Molecular weight: 390.265821