Difference between revisions of "Copper(II) phosphate"
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'''Copper(II) phosphate''', or '''cupric phosphate''', is a chemical compound with the formula Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>. It is a light blue powdery compound that is insoluble in water. | '''Copper(II) phosphate''', or '''cupric phosphate''', is a chemical compound with the formula Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>. It is a light blue powdery compound that is insoluble in water. | ||
==Properties== | ==Properties== | ||
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*Copper (II) phosphate can be reduced to copper phosphide, which can be used to isolate phosphorous by heating it: 4Cu<sub>3</sub>P<sub>2</sub> → 4Cu<sub>3</sub>P + P<sub>4</sub> | *Copper (II) phosphate can be reduced to copper phosphide, which can be used to isolate phosphorous by heating it: 4Cu<sub>3</sub>P<sub>2</sub> → 4Cu<sub>3</sub>P + P<sub>4</sub> | ||
| − | ==Safety== | + | ==Handling== |
| + | ===Safety=== | ||
Like all copper compounds, copper(II) phosphate is mildly toxic, but since it is insoluble it is less of a concern than soluble compounds.<ref>http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=86469</ref> | Like all copper compounds, copper(II) phosphate is mildly toxic, but since it is insoluble it is less of a concern than soluble compounds.<ref>http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=86469</ref> | ||
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| + | ===Storage=== | ||
| + | Should be stored in closed bottles. | ||
| + | |||
| + | ===Disposal=== | ||
| + | Copper phosphate should be disposed just like any other copper compound. | ||
==References== | ==References== | ||
<references/> | <references/> | ||
===Relevant Sciencemadness threads=== | ===Relevant Sciencemadness threads=== | ||
| + | *[http://www.sciencemadness.org/talk/viewthread.php?tid=61406 Copper phosphate synthesis useing phosphoric acid???] | ||
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[[Category:Chemical compounds]] | [[Category:Chemical compounds]] | ||
[[Category:Inorganic compounds]] | [[Category:Inorganic compounds]] | ||
Revision as of 12:51, 12 August 2015
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_phosphate_dry.jpg)
Copper(II) phosphate, or cupric phosphate, is a chemical compound with the formula Cu3(PO4)2. It is a light blue powdery compound that is insoluble in water.
Contents
Properties
Chemical
Copper(II) phosphate will react with acids to produce the corresponding copper salt and phosphoric acid.
Physical
Copper(II) phosphate is a light blue, powdery substance that is insoluble in water and ethanol, but soluble in ammonia and mineral acids.
Availability
Copper(II) phosphate is usually unavailable for sale as it has very few applications. It is extremely easy to prepare with OTC chemicals.
Preparation
Copper(II) phosphate can be prepared by combining copper(II) sulfate and trisodium phosphate in a 3:2 molar ratio.
3CuSO4 (aq) + 2Na3PO4 (aq) → 2Cu3(PO4)2 (s) + 3Na2SO4 (aq)
A different preparation involves reacting copper carbonate with phosphoric acid:
- 3 Cu2CO3(OH)2 + 4 H3PO4 → 2 Cu3(PO4)2 + 3 CO2 + 9 H2O
Monoammonium phosphate also works for this preparation.
Projects
- Copper compounds collection
- Paint pigments
- Copper (II) phosphate can be reduced to copper phosphide, which can be used to isolate phosphorous by heating it: 4Cu3P2 → 4Cu3P + P4
Handling
Safety
Like all copper compounds, copper(II) phosphate is mildly toxic, but since it is insoluble it is less of a concern than soluble compounds.[1]
Storage
Should be stored in closed bottles.
Disposal
Copper phosphate should be disposed just like any other copper compound.
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