copper chromate
- CAS No.
- 13548-42-0
- Chemical Name:
- copper chromate
- Synonyms
- COPPER(II)CHROMATE(VI);Chromic acid (H2CrO4), copper(2+) salt (1:1)
- CBNumber:
- CB3890444
- Molecular Formula:
- CrCuH2O4
- Molecular Weight:
- 181.55
- MDL Number:
- MOL File:
- 13548-42-0.mol
| Melting point | decomposes at 400℃ [KIR78] |
|---|---|
| solubility | insoluble in H2O; soluble in ethanol |
| form | red-brown crystals |
| color | red-brown crystals, crystalline |
| Water Solubility | mol/L solution H2O: 0.0020 (25°C); solid phase, CuCrO4 ·H2O [KRU93] |
| FDA UNII | 3G552ZJ16K |
| EPA Substance Registry System | Chromic acid (H2CrO4), copper(2+) salt (1:1) (13548-42-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS08,GHS07,GHS09 |
|---|---|
| Signal word | Danger |
| Hazard statements | H400-H302-H350-H317-H410 |
| Precautionary statements | P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P273-P391-P501-P264-P270-P301+P312-P330-P501-P273-P391-P501 |
copper chromate Chemical Properties,Uses,Production
Chemical Properties
reddish brown; used as a fungicide, to weatherproof textiles, in epoxy adhesives, and to preserve wood [KIR78]
Physical properties
The neutral form is a reddish-brown crystalline solid; decomposes slowly to copper(II) chromite when heated above 400°C; insoluble in water; soluble in acids. The basic chromates are crystals having colors that vary from yellow to chocolate-brown to lilac, depending on their compositions and chromate to hydroxide molar ratios. They lose water when heated at 260°C, are insoluble in water, and are soluble in nitric acid.
Uses
It is used in wood preservation and in textile weatherproofing.
Preparation
Copper(II) chromate(VI) is a red or reddish-brown, crystalline material prepared by the careful heating of a mixture of copper(II) oxide and chromium(VI) oxide or by reaction of copper(II) oxide with solutions of chromic acid.
copper chromate Preparation Products And Raw materials
copper chromate Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 9020 | 58 |
| Supplier | Advantage |
|---|---|
| Shaanxi Didu New Materials Co. Ltd | 58 |