COCL2 6H2O和无水钴氯化物之间的差异

Thekey differencebetween CoCl2 6H2O and anhydrous cobalt chloride is that theCoCl2 6H2O crystals have water ofcrystallizationwhereas the anhydrous cobalt chloride has no water of crystallization.Furthermore, the visually identifiable difference between CoCl2 6H2O and anhydrous cobalt chloride is that the CoCl2 6H2O is rose-red in color while the anhydrous cobalt chloride is sky-blue in color.

Cobalt chloride is a salt of cobalt. Moreover, it is aninorganic compoundhaving the chemical formula CoCl2. The hydrated form of this compound is a hexahydrate compound that has one cobalt chloride salt molecule attracted to six water molecules.

CONTENTS

1.Overview and Key Difference
2.What is CoCl2 6H2O
3.What is Anhydrous Cobalt Chloride
4.Side by Side Comparison – CoCl2 6H2O vs Anhydrous Cobalt Chloride in Tabular Form
5.概括

What is CoCl2 6H2O?

COCL2 6H2O是氯化钴含六水合物，含有六个水分子吸引的氯化钴分子。这种水合形式具有玫瑰红色，是一种晶体化合物。该化合物的摩尔质量为237.93 g/mol。它的密度约为1.924 g/cm3。

The melting point of this compound is 86◦C. This hydrated form has an octahedral geometry. This compound isdeliquescent. Upon heating, CoCl2 6H2O dehydrates by evaporating water molecules.

What is Anhydrous Cobalt Chloride?

Anhydrous cobalt chloride is the water-free from of cobalt chloride salt. It has no water of crystallization. It has a sky blue color. The molar mass of this compound is 129.84 g/mol. The melting point is 735◦C. The compound has a hexagonal geometry.

此外，这是一个hygroscopic化合物。该化合物可以作为干燥剂，因为它可以吸收水分子。

What is the Difference Between CoCl2 6H2O and Anhydrous Cobalt Chloride?

COCL2 6H2O是氯化钴含六水合物，含有六个水分子吸引的氯化钴分子。It has a rose-red color. The molar mass of this compound is high due to the presence of water molecules. Moreover, it converts into the anhydrous form upon heating. Anhydrous cobalt chloride is the water-free from of cobalt chloride salt. It has a sky blue color. In addition, it acts as a desiccant because it can absorb water.

概括– CoCl2 6H2O vs Anhydrous Cobalt Chloride

Cobalt chloride is a common salt that we use in laboratories as a source of cobalt. It is available in the anhydrous form, dehydrated form and hexahydrate form. The difference between CoCl2 6H2O and anhydrous cobalt chloride is that the CoCl2 6H2O crystals have water of crystallization whereas anhydrous cobalt chloride has no water of crystallization.

Reference:

1. “Cobalt(II) Chloride.” Wikipedia, Wikimedia Foundation, 13 June 2018.Available here

Image Courtesy:

1.’Cobalt(II) chloride hexahydrate sample’By Leiem – Own work,(CC BY-SA 4.0)通过Commons Wikimedia
2.’Anhydrous Cobalt(II)-chloride’By Softyx – Own work,(CC BY-SA 3.0)通过Commons Wikimedia