?????????????????????????PH??????????????????pH????,???pH???????,???????????????????????H+?OH-???,??????pH?,??????pH?????????????????,????????????????????????????????????pH?????????,?????????????????????????????????????????;?????????????

???????????

????PH???

(1)??????????,?????????????????

(2)???,?????????(????)????pH?????

(3)?????pH??????,??????,??????pH?????????????SE-6GFL?pH??8.60;????S-3GFL?pH??10.60?

(4)???????????,????,??????????????????????,??????,??????????????

??????

????????????pH????,????pH??????,????????,??????(pH=5?.5)??????,?????????????????pH???????????????,?????????????

??????????????

????????????Lanasol??????,???????????????pH????????(???pH????????????????)????????,?????,?????????????????,????????????,??????????????????????,???????,?????(????80???????)???????NH3稨2O- (NH4)2SO4?HAc-NaAc????????????pH?,????????????,????????????????????(??????)?

?????????

?????????????????????,????????????????????

???????????,???????Na2CO3-NaHCO3????,???????????????????Na2CO3??????,?????????30g/L??????????????,??Na2CO3-NaHCO3(??2?1)?????????????,??????????

??,??????????????,??????,????????Na2CO3NaHCO3(??2.2%?4.2%)?????????pH?,???????,????????????

???????????

????????????????????Na2CO3(pH=12??),?????????,???????,?????????????,??????????????,???????????;???NaHCO3???????????????????Na2CO3-NaHCO3??????,???????,?????????,?????????

?????,????????????(???)????(??),????????,??????,???????????,??????????????,?NH3稨2O-NH4Cl?NH3稨2O- (NH4)2SO4?,?????pH????7?8???,???????????????,????????????,???????,????,????????,????????????

????

?????????????????,????????pH?????????,????????????(?)?????????????,????????????pH?????,?????????,???????