亚铁氰化钠

亚铁氰化钠[1]
IUPAC名
Tetrasodium [hexacyanoferrate(II)]
别名 黄血盐钠
黄血盐
识别
CAS号 13601-19-9  checkY
PubChem 26129
SMILES
 
  • [C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Na+].[Na+].[Na+].[Na+].[Fe+2]
InChI
 
  • 1S/6CN.Fe.4Na/c6*1-2;;;;;/q6*-1;+2;4*+1
EINECS 237-081-9
性质
化学式 Na4Fe(CN)6
摩尔质量 303.91 g·mol⁻¹
外观 黄色晶体
密度 1.458 g/cm3[2]
熔点 435 °C (分解)
溶解性 18 g/100 mL
结构
晶体结构 单斜晶系
相关物质
其他阴离子 铁氰化钠
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

亚铁氰化钠,一般为十水合物形式,化学式Na4Fe(CN)6·10H2O。

性质

亚铁氰化钠是一种柠檬黄色单斜晶系的棱形或针状结晶,溶于水,不溶于。在空气中易风化,在50~60 °C的条件下晶体会很快失去结晶水,在更高温度下干燥生成坚硬的块状无水盐。在常温稀酸中不分解,但在沸浓酸中分解为氢氰酸。可被氧化为铁氰化钠。强烈灼烧时分解为氰化钠碳化铁和氮气。

制备

1、焦炉气副产回收法 焦炉气中的氰化氢在填充有铁刨花的塔中用纯碱液循环吸收,经沉降除杂得亚铁氰化钠。[3]

2、含氰化钠废液回收法 氰化钠溶液与氯化钙硫酸亚铁在加热条件下反应30~40分钟生成亚铁氰化钠。[3]

3、氰熔体法 氰熔体硫酸亚铁反应生成亚铁氰化钠与亚铁氰化钙混合溶液及其硫酸钙沉淀,过滤后加入纯碱使亚铁氰化钙转化为亚铁氰化钠,过滤除去碳酸钙,滤液经蒸发、结晶、分离、干燥得亚铁氰化钠成品。[3]

用途

用作制造蓝色颜料的原料,用于油漆、涂料和油墨。医药工业中用作去铁剂。

参考资料

  1. ^ 亚铁氰化钠的MSDS 互联网档案馆存檔,存档日期2010-05-17.
  2. ^ Record of Natriumhexacyanidoferrat(II) in the GESTIS Substance Database from the IFA英语Institute for Occupational Safety and Health
  3. ^ 3.0 3.1 3.2 中国化工产品大全 上卷,Bc151 亚铁氰化钠,页155

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