请问一下“碱石灰 生石灰 熟石灰 ” 都分别指的是什么 都分别可以吸收什么气体?

2025-03-16 00:51:00
推荐回答(4个)
回答1:

碱石灰是由氧化钙(CaO)和氢氧化钠(NaOH)固体组成,可以用来吸收CO2等酸性气体和H2O。会有水生成,但是被它自己吸收了,不会放出大量的水蒸气。生石灰主要成分是氧化钙(CaO),在空气中吸收水和二氧化碳。氧化钙与水作用生成氢氧化钙,并放出热量。用于钢铁、农药、医药、干燥剂、制革及醇的脱水等。工业上常以生石灰为脱硫剂,在吸收塔中与废气中的SO2反应而将硫固定,其产物可作建筑材料2CaO+2SO2+O2=2CaSO4,也可用生石灰吸收高炉废气中的SO3。 熟石灰:生石灰吸潮或加水就成为熟石灰,也叫消石灰,它的主要成分是Ca(OH)2。熟石灰经调配成石灰浆、石灰膏、石灰砂浆等,用作涂装材料和砖瓦粘合剂。

回答2:

碱石灰:主要成分是氧化钙和氢氧化钠,是混合物。 生石灰:氧化钙。熟石灰:氢氧化钙。

回答3:

碱石灰( NaOH + CaO) 一般用于除杂,吸水,干燥气体 生石灰 CaO 用于干燥气体,吸水 熟石灰 Ca(OH)2 用于检验CO2

回答4:

碱石灰 氧化钙和氢氧化钙的混合物,干燥碱性气体,吸收水蒸气和酸性气体生石灰 氧化钙熟石灰 氢氧化钙

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