"කැල්සියම් කාබනේට්" හි සංශෝධන අතර වෙනස්කම්
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143 පේළිය:
It is commonly called [[chalk]] as it has traditionally been a major component of blackboard chalk. Modern manufactured chalk is now mostly [[gypsum]], hydrated [[calcium sulfate]] CaSO<sub>4</sub>·2H<sub>2</sub>O.
Ground කැල්සියම් කාබනේට් is further used as an [[abrasive]] (both as scouring powder and as an ingredient of household scouring creams), in particular in its calcite form, which has the relatively low hardness level of 3 on the [[Mohs scale of mineral hardness]], and will therefore not scratch [[glass]] and most other [[ceramics]], [[Vitreous enamel|enamel]], [[bronze]], [[iron]], and [[steel]], and have a moderate effect on softer metals like [[aluminium]] and [[
=== Health and dietary applications ===
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