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维生素C在空气中不稳定,特别在水溶液中易被氧化。本文研究了磷酸及磷酸盐对维生素C的稳定作用。试验所用稳定剂磷酸盐为Na_3PO_4·12H_2O,Na_2HPO_4·12H_2O,NaH_2PO_4,Na_4P_2O_7·10H_2O,Na_2H_2P_2O_7简称P_2),Na_5P_3O_(10)·6H_2O,不偏磷酸钠,Na_3
Vitamin C is unstable in the air, especially in aqueous solution easily oxidized. This article studies the stabilizing effect of phosphoric acid and phosphate on vitamin C. The phosphates of the stabilizer used in this experiment were Na_2PO_4 · 12H_2O, Na_2HPO_4 · 12H_2O, NaH_2PO_4, Na_4P_2O_7 · 10H_2O and Na_2H_2P_2O_7 (P_2), Na_5P_3O_ (10) · 6H_2O, sodium metaphosphate, Na_3