SOLUBILITY OF OCTACALCIUM PHOSPHATE AT 25-DEGREES-C AND 45-DEGREES-C IN THE SYSTEM CA(OH)2-H3PO4-KNO3-H2O

SOLUBILITY OF OCTACALCIUM PHOSPHATE AT 25-DEGREES-C AND 45-DEGREES-C IN THE SYSTEM CA(OH)2-H3PO4-KNO3-H2O
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DOI：
10.1021/je00041a013
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发表时间：
1985-01-01
期刊：
JOURNAL OF CHEMICAL AND ENGINEERING DATA
影响因子：
--
通讯作者：
NANCOLLAS, GH
NANCOLLAS, GH
中科院分区：
其他
文献类型：
--
作者：
HEUGHEBAERT, JC;NANCOLLAS, GH

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在25℃和45℃下，通过在一定离子强度范围内的生长和溶解实验，测定了磷酸八钙(Ca4H(P04)3*2.25H20)在Ca(OH)2-H3P04-KN03-H20体系中的溶度积。考虑活度系数修正和离子对形成后，p/fw分别为49.6±0.2和49.8±0.3。
The solubility product of octacalcium phosphate (Ca4H (P04) 3* 2.25 H20) has been determined In the system Ca (OH) 2-H3P04-KN03-H20 at25 and 45 C by allowing both growth and dissolution experiments over a range of Ionic strength to come to equilibrium. Values of p/fw= 49.6±0.2 and 49.8±0.3, respectively, were obtained by taking Into account activity coefficient corrections and Ion-pair formation.