hypophosphoric acid造句

• Hypophosphoric acid is unstable in hot hydrochloric acid, in 4M HCl it hydrolyses to give H 3 PO 4.
• "' Hypophosphoric acid "'is a mineral acid with the formula H 4 P 2 O 6, with phosphorus in a formal oxidation state of + 4.
• Hypophosphoric acid is tetraprotic with dissociation constants pK a1 = 2.2, pK a2 = 2.8, pK a3 = 7.3 and pK a4 = 10.0.
• A mixture of hypophosphoric acid, phosphorous acid ( H 3 PO 3 ) and phosphoric acid ( H 3 PO 4 ) is produced when white phosphorus oxidises in air when partially immersed in water.
• In the solid state it is present as the dihydrate, H 4 P 2 O 6 ?H 2 O . In hypophosphoric acid the P atoms are identical and joined directly with a P-P bond.