TY  - Data
T1  - Basic thermodynamic and kinetic data set of sodium arsenate cooling crystallization process (March 2019)
A1  - Yang Liming
DO  - 10.12072/ncdc.UTCMW.db2167.2022
PY  - 2022
DA  - 2022-05-31
PB  - National Cryosphere Desert Data Center
AB  - Sodium arsenate is the main component of arsenic containing solid waste pollutants, which poses a serious threat to environmental health. Crystallization is one of the effective methods to separate and purify sodium arsenate from arsenic alkali residue leaching solution. However, due to poor observability and lack of separation and purification data, the crystallization process is limited. In this paper, a laser detection system with magnetic field generator is designed. The solubility, metastable zone width, interfacial tension, interfacial entropy factor, crystal nucleation and growth rate of sodium arsenate in constant component environment are studied. The results show that the solubility, metastable zone width, interfacial tension and interfacial entropy factor decrease with the existence of magnetic field. The magnetic field shortened the crystallization induction time and changed the nucleation and growth rate of sodium arsenate. In addition, X-ray diffraction and infrared analysis show that the magnetic field has no effect on the crystal structure of sodium arsenate, indicating that the magnetic field enhanced the crystallization process of sodium arsenate is a feasible engineering application method.The basic thermodynamic and kinetic data sets in the cooling crystallization process of sodium arsenate are obtained by experimental methods and formula reasoning. The data format is decimal (. XLS), and the amount of data is 3 groups, a total of 16 experiments.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/ab09b13a-3f54-41b7-bff3-6ae5f5ecf9fa
ER  -