TRANSFORMATIONS OF GYPSUM TO CALCIUM-SULFATE HEMIHYDRATE AND HEMIHYDRATE TO GYPSUM IN NACL SOLUTIONS

被引：5
作者：
IMAHASHI, M
MIYOSHI, T
机构：
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1994年 / 67卷 / 07期
关键词：
D O I：
10.1246/bcsj.67.1961
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The transformation of gypsum to calcium sulfate hemihydrate and hemihydrate to gypsum were carried out in NaCl solutions containing a small amount of strontium ions in order to elucidate their mechanisms. The values of the apparent partition coefficient of strontium between solution and solids were followed during the transformations and the gypsum and hemihydrate crystals were observed by SEM. The results showed that the transformations progressed by a dissolution-reprecipitation process.
引用
收藏
页码：1961 / 1964
页数：4
相关论文
共 18 条
[1]  
ABDELKHALIL AA, 1982, THERMOCHIM ACTA, V55, P201
[2]   THE OCCURRENCE OF BASSANITE IN SOME AUSTRALIAN ARID-ZONE SOILS [J].
AKPOKODJE, EG .
CHEMICAL GEOLOGY, 1984, 47 (3-4) :361-364
[3]  
BERNER RA, 1972, PRINCIPLES CHEM SEDI, P79
[4]  
CHATTERJI S, 1963, NATURE, V4905, P463
[5]  
DEER WA, 1972, ROCK FORMING MINER, V5, P202
[6]  
GUNATILAKA A, 1985, J U KUWAIT-SCI, V12, P157
[7]   PARTITION OF STRONTIUM BETWEEN GYPSUM AND SOLUTION [J].
ICHIKUNI, M ;
MUSHA, S .
CHEMICAL GEOLOGY, 1978, 21 (3-4) :359-363
[8]   STRONTIUM BEHAVIOR IN ARAGONITE-CALCITE TRANSFORMATION - EXPERIMENTAL STUDY AT 40-98 DEGREES C [J].
KATZ, A ;
STARINSKY, A ;
SASS, E ;
HOLLAND, HD .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1972, 36 (04) :481-+
[9]   THE PARTITIONING OF SEA-WATER CATIONS DURING THE TRANSFORMATION OF GYPSUM TO ANHYDRITE [J].
KUSHNIR, J .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1982, 46 (03) :433-446
[10]   THE CO-PRECIPITATION OF STRONTIUM, MAGNESIUM, SODIUM, POTASSIUM AND CHLORIDE-IONS WITH GYPSUM - AN EXPERIMENTAL-STUDY [J].
KUSHNIR, J .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1980, 44 (10) :1471-1482
12