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碳酸钡是一种白色粉末状,略带腻感,不溶于水的钡盐.常用作灭鼠剂和制造花炮等,易被当做调味剂加入食品,与人体胃酸反应成剧毒的氯化钡而引起中毒。碳酸钡由于不溶于水,其上清液滴加稀硫酸时不产生白色沉淀,检验时易被忽略而产生错觉。笔者采用一简易方法能对碳酸钡引起的食物中毒进行快速定性检验,操作简便,结果准确,一般实验室均可进行。
Barium carbonate is a white powder, slightly greasy, water-insoluble barium salts. Commonly used as rodenticides and manufacturing fireworks, easily used as a seasoning agent added to food, and the human stomach acid into a highly toxic barium chloride And cause poisoning. Barium carbonate is insoluble in water, the supernatant dripping diluted sulfuric acid does not produce a white precipitate, easy to be ignored when the test to produce a false impression. The author adopts a simple method to rapidly and qualitatively test food poisoning caused by barium carbonate, and has the advantages of simple operation, accurate result and general laboratory.