文章基本信息
- 标题：酸化剤によるチオシアン酸塩の分解
- 本地全文：下载
- 作者：小水 秀男 ; 久永 輝明 ; 藤井 悦男 等
- 期刊名称：日本写真学会誌
- 印刷版ISSN：0369-5662
- 电子版ISSN：1884-5932
- 出版年度：1979
- 卷号：42
- 期号：5
- 页码：309-313
- DOI：10.11454/photogrst1964.42.309
- 出版社：The Society of Photographic Science and Technolgy of Japan
- 摘要：
Reaction of aq. NH4SCN with 22 N H2SO4 was studied in order to estimate the yield of HCN from thiocyanate-fixers under strong acid conditions. Main gaseous products were identified to be HCN, CS, and COS by GC-MS. The amounts of HCN were measured by Pyridine-Pyrazolone method (JIS K 0102) and the maximum concentrations were ca. 1.2×10-2 mol/l and 1.4×10-2 mol/l for 2 mol/l and 4 mol/l NH4SCN respectively. Yellow solid was precipitated in the reaction and the molecular formula was determined to be C2H2N2S3 by elementary analysis.
