Characterization of the products obtained from the reactions of Zircaloy-4 with an acid mixture of concentrated HNO3 and dilute HF with the aim of understanding pickle salts of zirconium alloys

doi:10.1039/c6ra08589j

IMR OpenIR

	Characterization of the products obtained from the reactions of Zircaloy-4 with an acid mixture of concentrated HNO3 and dilute HF with the aim of understanding pickle salts of zirconium alloys
	Gu, Hengfei 1,2; Li, Geping 1,3; Liu, Chengze 1,3; Yuan, Fusen 1,3; Zhang, Lifeng 1,2; Wang, Lian 4; Li, Xiaoning 4; Wu, Songquan 5; Peng, Sheng 4; Gao, Bo 4
通讯作者	Gu, Hengfei(hfgu12s@imr.ac.cn) ; Li, Geping(gpli@imr.ac.cn)
	2016
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	6 期号:111 页码:109815-109825
摘要	Pickling of zirconium alloys in nitric-hydrofluoric acid has been widely used in the nuclear materials industry. However, the pickle salts still remain a curiosity and a thorough knowledge of the products of the system Zr-(HNO3-HF) still needs to be well established. The present study investigated the products obtained from the reactions of Zircaloy-4 with an acid mixture of HNO3 (65 wt%) and HF (40 wt%) in a volume ratio of 94 :6, similar to the one used under nuclear industry conditions. It shows that after the reactions, a gel-like solution was present. When drying it at a high relative humidity (at 25 degrees C and 70 +/- 5% RH), an amorphous solid product formed, while in the case of at a low relative humidity (at 15/ 25 degrees C and 25 +/- 5% RH), besides the amorphous solid, crystalline zirconium hydroxide nitrates Zr(OH)(2)(NO3)(2)center dot 4.71H(2)O and Zr(OH)(2)(NO3)(2)center dot 1.65H(2)O (possible) with low degree of crystallinity formed. These compounds were identified with the help of successfully synthesizing completely crystalline Zr(OH)(2)(NO3)(2)center dot 4.71H(2)O from the gel-like solution by ultrasonication, which in itself was a breakthrough. Such a study can be expected to provide a deep understanding of pickle salts of zirconium alloys in practical use.
DOI	10.1039/c6ra08589j
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000389350700055
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/123360
专题	中国科学院金属研究所
通讯作者	Gu, Hengfei; Li, Geping
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Peoples R China 4.State Nucl BaoTi Zirconium Ind Co, Baoji 721003, Peoples R China 5.Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, 155 Yangqiao Rd West, Fuzhou 350002, Peoples R China
推荐引用方式 GB/T 7714	Gu, Hengfei,Li, Geping,Liu, Chengze,et al. Characterization of the products obtained from the reactions of Zircaloy-4 with an acid mixture of concentrated HNO3 and dilute HF with the aim of understanding pickle salts of zirconium alloys[J]. RSC ADVANCES,2016,6(111):109815-109825.
APA	Gu, Hengfei.,Li, Geping.,Liu, Chengze.,Yuan, Fusen.,Zhang, Lifeng.,...&Gao, Bo.(2016).Characterization of the products obtained from the reactions of Zircaloy-4 with an acid mixture of concentrated HNO3 and dilute HF with the aim of understanding pickle salts of zirconium alloys.RSC ADVANCES,6(111),109815-109825.
MLA	Gu, Hengfei,et al."Characterization of the products obtained from the reactions of Zircaloy-4 with an acid mixture of concentrated HNO3 and dilute HF with the aim of understanding pickle salts of zirconium alloys".RSC ADVANCES 6.111(2016):109815-109825.