摘要
Crystallization of calcium oxalate(CaOxa) was investigated in the presence of magnesium tartrate(Mgtart) with different concentrations in gel system by a double diffusion technique.The phase composition and morphology of the crystals were determined by scanning electron microscopy(SEM) and X-ray diffraction(XRD).In the presence of Mgtart with a low concentration(0.02 mol/L),calcium oxalate monohydrate(COM) is the dominant crystal phase.The mass fraction of calcium oxalate dihydrate(COD) was about 12% and no calcium oxalate trihydrate(COT) was observed.When the concentration of Mgtart increased to 0.06 mol/L,the mass fraction of COT was increased to 33%,and that of COM decreased to 55%,but the mass fraction of COD changed less in the studied concentration range.The inhibitive capacity of Mgtart was stronger than that of either MgCl2,or H2tart,or a mixture of MgCl2 and H2tart.This indicates that not only Mgtart may be used to cure and prevent CaOxa stones,but also may had a stronger capacity than MgCl2 or H2tart or a mixture of MgCl2 and H2tart.
Crystallization of calcium oxalate (CaOxa) was investigated in the presence of magnesium tartrate ( Mgtart ) with different concentrations in gel system by a double diffusion technique. The phase composition and morphology of the crystals were determined by scanning electron microscopy(SEM) and X-ray diffraction (XRD). In the presence of Mgtart with a low concentration (0. 02 mol/L), calcium oxalate monohydrate (COM) is the dominant crystal phase. The mass fraction of calcium oxalate dihydrate(COD) was about 12% and no calcium oxalate trihydrate (COT) was observed. When the concentration of Mgtart increased to 0. 06 mol/L, the mass fraction of COT was increased to 33%, and that of COM decreased to 55%, but the mass fraction of COD changed less in the studied concentration range. The inhibitive capacity of Mgtart was stronger than that of either MgCl2 , or H2 tart, or a mixture of MgCl2 and H2 tart. This indicates that not only Mgtart may be used to cure and prevent CaOxa stones, but also may had a stronger capacity than MgCl2 or H2tart or a mixture of MgCl2 and H2tart.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第7期1220-1222,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20471024)资助
关键词
草酸钙
酒石酸镁
凝胶
病理矿化
Calcium oxalate
Magnesium tartrate
Gel
Abnormal biomineralization