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硝酸钴

硝酸钴(II)[1]
别名 硝酸钴
硝酸亚钴
识别
CAS号 10141-05-6  checkY
10026-22-9 (六水合物)
PubChem 25000
ChemSpider 23369
SMILES
 
  • [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O
InChI
 
  • 1/Co.2NO3/c;2*2-1(3)4/q+2;2*-1
InChIKey UFMZWBIQTDUYBN-UHFFFAOYAS
EINECS 233-402-1
ChEBI 86209
RTECS GG1109000
性质
化学式 Co(NO3)2
外观 浅红色粉末 (无水物)
红色结晶 (六水合物)
密度 2.49 g/cm3 (无水物)
1.87 g/cm3 (六水合物)
熔点 100 °C 分解 (无水物)
55 °C (六水合物)
沸点 100–105 °C 分解 (六水合物)
溶解性 134 g/100 ml, 0 °C (六水合物)
可溶 (无水物)
溶解性(其他) 溶于乙醇丙酮 (六水合物)
结构
配位几何 单斜 (六水合物)
危险性
警示术语 R:R49, R60, R42/43, R68, R50/53
MSDS Cobalt (II) Nitrate MSDS
欧盟编号 027-009-00-2
欧盟分类 二类致癌物
三类诱变剂
二类生殖毒性
有毒 (T)
对环境危险 (N)
NFPA 704
0
2
0
OX
相关物质
其他阴离子 硫酸钴
氯化钴
其他阳离子 硝酸铁
硝酸镍
硝酸高钴
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硝酸钴,化学式Co(NO3)2

性质

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硝酸钴是一种红色单斜柱状结晶,在潮湿空气中易潮解,易溶于水、乙醇丙酮乙酸甲酯,微溶于氨水,水溶液呈红色。55°C失去3个结晶水,再加热则失去1个结晶水,继续加热则分解为氧化钴。与有机物接触能爆炸和燃烧。[2]

制备

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由30~32%硝酸与金属进行反应,再经趁热过滤、滤液酸化、蒸发浓缩、冷却结晶、离心分离得到硝酸钴成品。[2]

钴的氧化物、氢氧化物、碳酸盐和硝酸反应,也能得到硝酸钴。

用途

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用于制造石油化工中直接脱硫的催化剂、隐显墨水、钴颜料、六亚硝酸钴钠,用作氰化物中毒的解毒剂,此外也用作陶瓷工业中的着色剂、制造维生素B12的添加剂等。[2][3]

参考资料

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  1. ^ Record of Cobalt(II)-nitrat in the GESTIS Substance Database from the IFA英语Institute for Occupational Safety and Health
  2. ^ 2.0 2.1 2.2 中国化工产品大全 上卷,Bc217 硝酸钴,页205
  3. ^ [硝酸钴字典-Guidechem.com(英文). [2012-01-05]. (原始内容存档于2016-03-05).  硝酸钴字典-Guidechem.com(英文)]
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硝酸钴
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