CHEM. QUESTION

2008-03-27 5:22 am
Is solid slaked lime (calcium hydroxide) more desirable to be used to lower soil acidity when compared with limestone? State your reason.

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回答 (2)

2008-03-27 7:21 pm
✔ 最佳答案
yes. calcium hydroxide is more desirable than limestone.
it is because calcium hydroxide is soluble in water . it will
react with the acidic soil. but the limestone is insoluble
in water.
2008-03-30 9:52 pm
calcium hydroxide is a weak alkali

it is only slightly soluble in water



CaO is even better than Ca(OH)2 (although it's out of the scope of this question)

CaO reacts with water, dissolves faster than Ca(OH)2


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