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草酸锶

草酸锶
英文名 Strontium Oxalate
识别
CAS号 814-95-9  ☒N
PubChem 69947
ChemSpider 63140
SMILES
 
  • [Sr+2].[O-]C(=O)C([O-])=O
EINECS 212-415-6
性质
化学式 SrC2O4
摩尔质量 175.64 g/mol g·mol⁻¹
密度 2.08 g/cm3
沸点 200 °C(392 °F;473 K)时分解
溶解性 难溶于水
危险性
主要危害 刺激眼镜与皮肤。
吸入时刺激肺黏膜
NFPA 704
0
1
1
 
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

草酸锶草酸盐,化学式为SrC2O4。草酸锶存在无水物和水合物(SrC2O4•nH2O),也能形成酸式盐(SrC2O4•mH2C2O4•nH2O)。[1]

性质与应用

[编辑]

草酸锶可以用于烟火中,这是由于它受热易分解:[2] SrC2O4 → SrO + CO2 + CO

它是适合用于烟火的化学品,因为遇热能够迅速分解。当分解生成氧化锶时,会产生红色的效果。生成的一氧化碳能和氧化镁进一步作用。在镁的存在下,草酸锶可以得到亮丽的红色。但如果没有镁,用于产生特效的更好选择将是碳酸锶

参考文献

[编辑]
  1. ^ Knaepen, E. "Preparation and Thermal Decomposition of Various Forms of Strontium Oxalate". Thermochimica Acta 284.1 (1996): 213-27.
  2. ^ Kosanke, K. "Chemical Components of Fireworks Compositions". Pyrotechnic Chemistry. Whitewater, CO: Journal of Pyrotechnics, 2004. 1-11.
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草酸锶
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