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Definition of Cr2
Cr2 is not the name of a specific chemical substance but is a symbol for two atoms of Chromium (Cr).
1.1 Names
1.1.1 Common name: Chromium
1.1.2 English name: Chromium
1.2. Atomic mass: 51,9961(6) u
1.3. Molar mass: 51,9961(6) g/mol
1.3.1 Molecular structure: Cr2 indicates the combination of two Chromium atoms.
1.4 Ion structure: Chromium can form various different ions such as Cr2+, Cr3+. -
Properties: Cr2
2.1 Physical properties of Cr2
State: Solid
Color: Silver-gray
Smell: Odorless
pH Level: Not applicable as Cr2 is a solid metal
2.2 Chemical properties of Cr2: Chromium is very stable in air, insoluble in water and dilute acid but soluble in concentrated acid. -
Common chemical equations involving Cr2
Chromium participates in many chemical reactions but to maintain accuracy, we do not use Cr2 but use chromium ions such as Cr2+, Cr3+,… -
Preparation of Cr2
4.1 Laboratory preparation of Cr2: No examples of Cr2 preparation in a laboratory have been found.
4.2 Industrial preparation of Cr2: Chromium is produced from chromite ore FeCr2O4 through a metallurgical process. We do not have specific information on the industrial preparation of Cr2.