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Citation: ZHENG Ya-Jie, GONG Zhu-Qing, LIU Li-Hua, LI Jing-Sheng. Study on Structure and Thermal Reaction of Solid Polyferric Sulfate[J]. Chinese Journal of Applied Chemistry, ;2003, 20(10): 1009-1011. shu

Study on Structure and Thermal Reaction of Solid Polyferric Sulfate

1.
College of Metallurgical Science and Engineering, Central South University, Changsha 410083

Corresponding author: ZHENG Ya-Jie,
Received Date: 28 November 2002
Available Online: 9 June 2003
Fund Project:

The solid polyferric sulfate(PFS) was made by oxidation of pyrite cinders with NaClO₃. It was first time discovered by X-rays diffractometry that when the solid PFS was prepared at temperature below 120℃ the main phase of the solid PFS is Fe_4.67(SO₄)₆(OH)₂·20H₂O which disappeared when heating was carried out above 130℃ for 2 h and complex physical chemical reactions occurred. In thermal spectra two TG mass loss peaks and DTA exothermic peaks at 170~290℃ and 27~160℃, respectively, were recorded.
- pyrite cinders,
- solid polyferric sulfate,
- structure,
- thermal property
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