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Calcium Chloride: Chalk Dissolved in Hydrochloric Acid and Evaporated
Calcium chloride from chalk, as Thorpe's Dictionary (1912) gives it: dissolve chalk in hydrochloric acid and evaporate.
The picture: our diagram.
初学者
1 day
说明
1
1
Dissolve chalk in hydrochloric acid
Dissolve chalk in hydrochloric acid
Dissolve chalk in hydrochloric acid. Ours: whiting, added a little at a time in a beaker.
此步骤所需材料:
碳酸钙(白垩粉)1 as required
盐酸1 as required所需工具:
玻璃烧杯
搅拌器
化学防溅护目镜
橡胶手套2
2
Evaporate
Evaporate
Evaporate the solution to obtain the calcium chloride. Ours: an evaporating dish on a hot plate.
所需工具:
蒸发皿
电热板3
3
Keep it closed
Keep it closed
Calcium chloride takes up water from the air. Ours: store it in a stoppered bottle.
所需工具:
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