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碳酸氢钠化学式
更新时间: 2021-02-04 01:33:50  

1、碳酸氢钠,化学式NaHCO2,俗称小苏打。白色细小晶体,在水中的溶解度小于碳酸钠。碳酸氢钠是强碱与弱酸中和后生成的酸式盐,溶于水时呈现弱碱性。

2、碳酸氢钠固体在50℃以上开始逐渐分解生成碳酸钠、水和二氧化碳气体,常利用此特性作为制作饼干、糕点、馒头、面包的膨松剂。碳酸氢钠在作用后会残留碳酸钠,使用过多会使成品有碱味。

关键词: 碳酸 化学式

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