Basic copper carbonate: Difference between revisions
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===Primary=== | ===Primary=== | ||
* Source of elemental [[copper]] | * Source of elemental [[copper]] | ||
* Ultimate source of most copper (II) compounds. | * Ultimate source of [[copper acetate]], [[copper (II) chloride]], and most copper (II) compounds. | ||
===Secondary=== | |||
* Part of early paths to sulfuric acid | |||
==Natural occurrence== | ==Natural occurrence== | ||
Revision as of 19:59, 12 April 2020
| Chemical formula | Cu2(OH)2CO3 |
|---|---|
| OTP appearance | aqua/green solid |
| Molar Mass(g/mol) | 221.114 |
| Enthalpy of Formation(kJ/mol) | -595 |
| Density(g/cc) | 4 |
| Melting Point(°C) | 200 |
| Boiling Point(°C) | 290 (decomp) |
| Solubility in water(g/L) | insoluble |
| NFPA 704 |  0
0
0
|
Uses
Primary
- Source of elemental copper
- Ultimate source of copper acetate, copper (II) chloride, and most copper (II) compounds.
Secondary
- Part of early paths to sulfuric acid
Natural occurrence
Hazards
Production
Extraction
Grind malachite or azurite into a fine powder and pan. (separate by mass)
Synthesis
Combine copper sulfate and sodium bicarbonate in water giving copper carbonate
- 2 CuSO4 + 2 NaHCO3 + H2O → Cu2(OH)2CO3 + 2 NaHSO4 + CO2
Testing
Purification
Storage
- Storable in open container
Disposal
- Can be released into non-watery environment