CAJ | 학술논문

研究了温度、pH、醋酸钠、草酸钠和磷酸三钠对 K2FeO4在水溶液中稳定性的影响.随着温度的升高,K2FeO4的稳定性减弱;随pH升高,K2FeO4在水溶液中的稳定性增强,在 pH=9.5和pH=11.5时较稳定;在10mmol/L的磷酸三钠、草酸钠和醋酸钠水溶液以及pH=11.5的水溶液中, K2FeO4的稳定性顺序为,磷酸三钠水溶液<草酸钠水溶液<pH=11.5的水溶液<醋酸钠水溶液;发现醋酸钠可显著提高K2FeO4在水溶液中的稳定性,醋酸钠浓度越高,K2FeO4的稳定性越好.
연구료온도、pH、작산납、초산납화린산삼납대 K2FeO4재수용액중은정성적영향.수착온도적승고,K2FeO4적은정성감약;수pH승고,K2FeO4재수용액중적은정성증강,재 pH=9.5화pH=11.5시교은정;재10mmol/L적린산삼납、초산납화작산납수용액이급pH=11.5적수용액중, K2FeO4적은정성순서위,린산삼납수용액<초산납수용액<pH=11.5적수용액<작산납수용액;발현작산납가현저제고K2FeO4재수용액중적은정성,작산납농도월고,K2FeO4적은정성월호.
The effects of temperature, pH, sodium acetate, sodium oxalate and sodium phosphate on stability of K2FeO4 in aqueous solution were studied respectively. With rising in temperature, the stability of K2FeO4 was weakened. Along with pH increasing, the stability of K2FeO4 was strengthened. K2FeO4 was more steady in aqueous solution of pH=9.5 and 11.5. Stabilities of K2FeO4 in aqueous solutions of 10mmol/L sodium acetate, sodium oxalate, sodium phosphate and pH=11.5 follow the order sodium phosphate < sodium oxalate<pH=11.5< sodium acetate. It was found that the stability of K2FeO4 was increased remarkably with sodium acetate, and the richer the sodium acetate was, the stronger the stability of K2FeO4.