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硝酸亞汞

硝酸亞汞[1][2]
IUPAC名
Mercury(I) nitrate
英文名 Mercurous nitrate
识别
CAS号 10415-75-5(无水)  checkY
14836-60-3(二水)  checkY
7782-86-7(一水)  checkY
PubChem 25247
性质
化学式 Hg2(NO3)2 (無水)
Hg2(NO3)2·2H2O (二水)
摩尔质量  525.19 g/mol (無水)
561.22 g/mol (二水) g·mol⁻¹
外观 白色單斜晶體(無水)無色晶體(二水)
密度 4.8 g/cm3
熔点 ? (無水)
70°C时分解 (二水)
溶解性 略溶於水,會產生水解反應
危险性
NFPA 704
1
3
1
OX
相关物质
其他阴离子 氟化亚汞
氯化亚汞
溴化亚汞
碘化亚汞
其他阳离子 硝酸汞
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硝酸亞汞化学式为Hg2(NO3)2,英文名為mercury(I) nitrate。為白色斜晶體,水解後變成無色,可溶性金屬鹽類,為氧化劑。如同所有汞化合物,有一定毒性。

製備

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硝酸亞汞是經由稀硝酸和汞的化合產生的(如果是汞和濃硝酸則會產生硝酸汞)。

化學特性

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硝酸亚汞试剂,表面因水解变黄

硝酸亞汞溶於水中為酸性,且會和水很慢的產生化學反應:

Hg2(NO3)2 + H2O → Hg2(NO3)(OH) + HNO3

Hg2(NO3)(OH)為呈黃色的沉澱物,不溶于水,可溶于稀硝酸。

如果硝酸亞汞溶液加溫或暴露於強光下,則會分解為硝酸汞 [2]:

Hg2(NO3)2 → Hg + Hg(NO3)2

參考來源

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  1. ^ Lide, David R., Handbook of Chemistry and Physics 87, Boca Raton, FL: CRC Press: 4–45, 1998, ISBN 0849305942 
  2. ^ 2.0 2.1 Patnaik, Pradyot, Handbook of Inorganic Chemical Compounds, McGraw-Hill Professional: 573, 2003 [2009-07-20], ISBN 0070494398 
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硝酸亞汞
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