【摘要】 通过对钙磷镁肥（FCMP）的TMS—GC法分析证明:FCMP中硅是以较小的聚阴离子存在;磷与硅形成聚合阴离子或少量 （PO）₄^3-存在。硅网络大小在碱度较高的FCMP体系中不是决定转化率的主要因素;硅磷聚合使其Ca₅F（PO₄）₃晶体出能垒增加一个或两个Si—O键能量值。更多还原

【Abstract】 By means of trimethylsilylation of FCMP (Fused Calcium-Magnesium Phosphate)and gas chromatography,it has been broved that anions, in. order of decreasing peak area,Si044-,Si2076-,Si03108- and Si4O128-,which represent the bulk of the chromatograms,along with more Si3PO127-,SiPO75-,Si2PO107- and less PO43- are present in FCMP.Bond Si-O-P existing in FCMP makes the barrier to the formation of frystal Ca5F(PO4)3 in FCMP be as largeas bond energy.The size of silicate network is not the main factor, which resists the cormation of crystal Ca6F(PO4) 3,in FCMP containing more alkaline oxides.更多还原