Basic information Safety Supplier Related

DICHROMATE

Basic information Safety Supplier Related

DICHROMATE Basic information

Product Name:
DICHROMATE
Synonyms:
  • Dichromate, Ion chromatography standard solution, Specpure, Cr2O7- 1000g/ml
  • DICHROMATE
  • DICHROMATE ION CHROMATOGRAPHY STANDARD
  • DICHROMATE, ION CHROMATOGRAPHY STANDARD SOLUTION
  • Dichromate, Ion chromatography standard solution, Specpure(R), Cr2O7-2 1000μg/ml
  • Dichromate, Ion chromatography standard solution, Specpure , Cr{2}O{7}|- 1000 g/ml
  • Dichromate, Ion chromatography standard solution, Cr
MF:
Cr2O7-2
MW:
215.988
Mol File:
Mol File
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DICHROMATE Chemical Properties

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

MSDS

  • Language:English Provider:ALFA
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DICHROMATE Usage And Synthesis

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.

DICHROMATESupplier

Alfa Aesar
Tel
1 888 343-8025 Specialty/Bulk
Email
tech@alfa.com
GFS Chemicals
Tel
800 858-9682 (U.S. & Canada)
Email
gfschem@gfschemicals.com
Cerilliant Corporation
Tel
800 848 7837 (US and Canada)
Email
techserv@cerilliant.com
VWR International
Tel
800 932 5000
Email
solutions@vwr.com