ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Zinc hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing zinc ions. Zinc hydroxide (Zn(OH)2) is precipitated out of solution as a white solid that is soluble in excess NaOH to give a colourless solution. Addition of sodium hydroxide is used as a test for positive metal ions in solution.
Model release not required. Property release not required.