GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Aluminium phosphate precipitate, 2 of 3. This series shows a progression as aluminium sulphate (Al2(SO4)3) is added to a test tube containing sodium phosphate (Na3PO4). Both solutions are 0.5 M concentration. Aluminium phosphate precipitate (AlPO4) is formed as a result: Al2(SO4)3 + Na3PO4 -> AlPO4 + Na2SO4. This is an example of a double displacement reaction.
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