Copper (II) hydroxide: Difference between revisions
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* Precursor for important copper compounds such as [[copper (II) chloride]] | * Precursor for important copper compounds such as [[copper (II) chloride]] | ||
==Natural occurrence== | ==Natural occurrence== | ||
* | * '''Does''' occur naturally as rare mineral spertiniite | ||
==Hazards== | ==Hazards== | ||
==Character== | ==Character== | ||
| Line 17: | Line 18: | ||
===Synthesis=== | ===Synthesis=== | ||
Combine a soluble copper (II) salt (like [[copper (II) chloride]] or [[copper (II) acetate]]) with [[sodium hydroxide]] or [[potassium hydroxide]] | Combine a soluble copper (II) salt (like [[copper (II) chloride]] or [[copper (II) acetate]]) with [[sodium hydroxide]] or [[potassium hydroxide]] | ||
# | ====Example==== | ||
#: {{#Chem: Cu(CH3COO)2(aq) + 2NaOH = Cu(OH)2(s) + NaCH3COO (aq)}} | # Completely dissolve 72g of hydrated [[copper (II) acetate]] (0.36M) in 1L of [[water]]. | ||
# Completely dissolve 42g of hydrated [[sodium hydroxide]] (0.72M) in 50ml of [[water]]. | |||
# Chill both solutions | |||
# Combine solutions, keeping the temperature of the solution below 80°C, producing copper hydroxide and sodium acetate. | |||
#: {{#Chem: Cu(CH3COO)2(aq) + 2NaOH(aq) = Cu(OH)2(s) + NaCH3COO (aq)}} | |||
==Testing== | ==Testing== | ||
Latest revision as of 14:27, 25 April 2020
| Chemical formula | Cu(OH)2 |
|---|---|
| OTP appearance | blue to blue-green solid |
| Molar Mass(g/mol) | 97.56 |
| Density(g/cc) | 3.368 |
| Melting Point(°C) | 80-100 (decomp) |
| Solubility in water(g/L) | insoluble |
| Solubility in ethanol(g/L) | insoluble |
| NFPA 704 |  0
2
0
|
Uses
Justification Questioned
Other
- Precursor for important copper compounds such as copper (II) chloride
Natural occurrence
- Does occur naturally as rare mineral spertiniite
Hazards
Character
Soluble in ammonium hydroxide
Production
Extraction
Synthesis
Combine a soluble copper (II) salt (like copper (II) chloride or copper (II) acetate) with sodium hydroxide or potassium hydroxide
Example
- Completely dissolve 72g of hydrated copper (II) acetate (0.36M) in 1L of water.
- Completely dissolve 42g of hydrated sodium hydroxide (0.72M) in 50ml of water.
- Chill both solutions
- Combine solutions, keeping the temperature of the solution below 80°C, producing copper hydroxide and sodium acetate.
- Cu(CH3COO)2(aq) + 2 NaOH(aq) → Cu(OH)2(s) + NaCH3COO(aq)