SS1 Chem stupid question
回答 (3)
2010-05-17 5:09 am
✔ 最佳答案
lime water is Ca(OH)2 + waterCa(OH)2 is only corrosive and is harmful if swallowed
but lime water we often use is usually diluted.
So it is actually quite safe.
2010-05-17 5:47 pm
You can make limewater by adding Ca(OH)2 to water but it is only 1.5 g solubility at 25degree C . The pH of the solution is about 12.3 . It is slightly alkaline solution , you don't label it as hazardous material , rather irritant . When you touch it , you don't feel painful immediatelyly but prolong exposing , you will feel uncomfortable .
2010-05-17 5:16 am
quite safe
limewater is Ca(OH)2 氫氧化鈣calcium hydroxide
pH 12,corrosive
always use to test CO2
limewater is Ca(OH)2 氫氧化鈣calcium hydroxide
pH 12,corrosive
always use to test CO2
參考: my chemistry knowledge
收錄日期: 2021-04-13 17:14:46
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