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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, Hengfei1,2; Li, Geping1,3; Liu, Chengze1,3; Yuan, Fusen1,3; Zhang, Lifeng1,2; Wang, Lian4; Li, Xiaoning4; Wu, Songquan5; Peng, Sheng4; Gao, Bo4
Corresponding AuthorGu, Hengfei(hfgu12s@imr.ac.cn) ; Li, Geping(gpli@imr.ac.cn)
2016
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:111Pages:109815-109825
AbstractPickling 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.
DOI10.1039/c6ra08589j
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000389350700055
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/123360
Collection中国科学院金属研究所
Corresponding AuthorGu, Hengfei; Li, Geping
Affiliation1.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
Recommended Citation
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.
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