Basic copper carbonate: Difference between revisions
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===Primary=== | ===Primary=== | ||
* Source of elemental [[copper]] | * Source of elemental [[copper]] | ||
* Ultimate source of [[copper acetate]] | * Ultimate source of most most copper (II) compounds, including [[copper (II) acetate]] and [[copper (II) chloride]]. | ||
===Secondary=== | ===Secondary=== | ||
* Part of early paths to sulfuric acid | * Part of early paths to sulfuric acid | ||
| Line 17: | Line 18: | ||
Grind [[malachite]] or [[azurite]] into a fine powder and pan. (separate by mass) | Grind [[malachite]] or [[azurite]] into a fine powder and pan. (separate by mass) | ||
===Synthesis=== | ===Synthesis=== | ||
Combine [[copper sulfate]] and [[sodium bicarbonate]] in water giving [[copper carbonate]] | Combine [[copper sulfate]] and [[sodium bicarbonate]] in water giving [[copper carbonate]], which can be filtered from the solution | ||
: {{#Chem:2 CuSO4 + 2 NaHCO3 + H2O = Cu2(OH)2CO3 + 2 NaHSO4 + CO2}} | : {{#Chem:2 CuSO4 + 2 NaHCO3 + H2O = Cu2(OH)2CO3 + 2 NaHSO4 + CO2 // bicarbonates }} | ||
: {{#Chem:2 CuSO4 + 2 NaCO3 + H2O = Cu2(OH)2CO3 + 2 NaSO4 + CO2 // carbonates }} | |||
==Testing== | ==Testing== | ||
==Purification== | ==Purification== | ||
* Wash with cold water, ethanol, acetone, benzene, dichloromethane, etc. Basic copper carbonate is insoluble in all of them. | |||
==Storage== | ==Storage== | ||
* Storable in open container | * Storable in open container | ||
Latest revision as of 20:26, 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 most most copper (II) compounds, including copper (II) acetate and copper (II) chloride.
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, which can be filtered from the solution
- 2 CuSO4 + 2 NaHCO3 + H2O → Cu2(OH)2CO3 + 2 NaHSO4 + CO2 // bicarbonates
- 2 CuSO4 + 2 NaCO3 + H2O → Cu2(OH)2CO3 + 2 NaSO4 + CO2 // carbonates
Testing
Purification
- Wash with cold water, ethanol, acetone, benzene, dichloromethane, etc. Basic copper carbonate is insoluble in all of them.
Storage
- Storable in open container
Disposal
- Can be released into non-watery environment