DICHROMATE
- CAS No.
- Chemical Name:
- DICHROMATE
- Synonyms
- DICHROMATE;DICHROMATE ION CHROMATOGRAPHY STANDARD;DICHROMATE, ION CHROMATOGRAPHY STANDARD SOLUTION;Dichromate, Ion chromatography standard solution, Cr;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, Specpure, Cr2O7- 1000g/ml
- CBNumber:
- CB6492564
- Molecular Formula:
- Cr2O7-2
- Molecular Weight:
- 215.988
- MDL Number:
- MFCD01093393
- MOL File:
- Mol file
DICHROMATE Chemical Properties,Uses,Production
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.
DICHROMATE Preparation Products And Raw materials
Raw materials
Preparation Products
DICHROMATE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Alfa Aesar | -- | tech@alfa.com | United States | 6814 | 81 |
| VWR International | -- | solutions@vwr.com | United Kingdom | 6548 | 82 |
| Cerilliant Corporation | -- | techserv@cerilliant.com | United States | 1629 | 69 |
| GFS Chemicals | -- | gfschem@gfschemicals.com | United States | 3403 | 75 |
| Supplier | Advantage |
|---|---|
| Alfa Aesar | 81 |
| VWR International | 82 |
| Cerilliant Corporation | 69 |
| GFS Chemicals | 75 |