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HomeProduct name listDICHROMATE

DICHROMATE

  • Empirical Formula: Cr2O7-2
  • Molecular Weight: 215.988
  • MDL number: MFCD01093393
  • Update Date: 2023-04-23 13:52:06
DICHROMATE Structural

What is DICHROMATE?

Industrial uses

This is an orange, crystalline substance with a specific gravity of 2.68. Solubility in water is 11.7% at 20 °C. Both potassium and sodium dichromate are used in mineral processing.Dichromate solutions have an acid reaction because Cr2O72- ion reacts with water as follows: H2O + Cr2O72- ? HCr2O4- + H+ + CrO4-
Salts of chromic acid in acid medium are oxidants (Cr4- changes to Cr3- ). In principle, dichromates are used in selective separation of copper–lead bulk concentrates, usually in acid pH. A mixture of sodium dichromate and sodium silicate has shown to be an excellent lead depressant during copper flotation from a bulk copper–lead concentrate containing secondary copper minerals.

Properties of DICHROMATE

form  Liquid
Exposure limits ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3

Safety information for DICHROMATE

Computed Descriptors for DICHROMATE

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