Write the preparation steps of calomel …
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Posted by Tamanna Sharma 5 years, 10 months ago
- 2 answers
Yogita Ingle 5 years, 10 months ago
Hg2Cl2 is known as calomel. It is prepared by heating HgCl2 and Hg in an iron vessel. It can also be prepared by mixing mercury salt with chloride ions.
Properties
1) It is a white powder which is insoluble in water.
2) Hg2Cl2 on heating dissociates into HgCl2 and Hg. action of calomel on heat 2"> Corrosive sublimate HgCl2 is a corrosive sublimate, which is prepared by passing chlorine over heated mercury or mercury chloride.
It can also be prepared by heating mercury sulphate with NaCl. action of mercury sulphate with NaCl
Properties
1) It is a crystalline solid.
2) It is soluble in hot water, ethanol and ether.
3) HgCl2 reacts with KI and forms a colorless solution known as Nessler`s reagent. nessler s reaction
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Tamanna Sharma 5 years, 10 months ago
1Thank You