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(410081)pH,,pHpHTQ424EffectsofpHValueontheStabilityofSilicaSolLiQiaolin(HunanNormalUniversityChangsha410081)AbstractEffectsofdifferentpHvaluesonthestabilityofsilicasolwerestudied,andoptimumvalueswerefoundforlongerstoragetimeforsilicasol.KeywordssilicasolpHvaluestability,,,,50,,,,,,pH1111:;GB6682:;(PHS-2),,(011mg)112(),,NaOHpH(,011pH),pH,11pH()Na2O(%)()12.50.24623180126635150128247110130758150132126916013824710140146242,,,,,D.L.V.O,,,,,,,286199812HUNANCHEMICALINDUSTRYVol.28No.6December1998,,,(SiO2)mSiO2-3,H+,,,,,pH,pH215,,;pH35,pH,,,;pH6,pH,,,pH5,,pH89.6,,pH,,pH,,3,pH,,,,,,,,1,,2SiO2,1994,(4):4292,:,19941813,,:,19801394,:,19812005,GB9724-88pH:,1995:199736: