Copper (II) hydroxide

From NOWA-CL
Jump to navigation Jump to search
 
Copper (II) hydroxide
Chemical formula Cu(OH)2
OTP appearance blue to blue-green solid 
Molar Mass(g/mol) 97.56 
Melting Point(°C) 80-100 (decomp) 
Density(g/cc) 3.368 
Solubility in water(g/L) insoluble 
Solubility in ethanol(g/L) insoluble
NFPA 704
NFPA704.png
0
2
0
 

Uses

Justification Questioned

Other

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

  1. Completely dissolve 72g of hydrated copper (II) acetate (0.36M) in 1L of water.
  2. Completely dissolve 42g of hydrated sodium hydroxide (0.72M) in 50ml of water.
  3. Chill both solutions
  4. 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)

Testing

Purification

Storage

Disposal

See Also

References