What does hexavalent chromium mean in practice?
A total chromium result does not show the Cr(VI) fraction, so speciation analysis is required when it is suspected.
When does it matter?
Redox conditions, pH and organic matter affect chromium conversion and adsorption performance.
Which solutions are related to it?
Treatment may reduce Cr(VI) to Cr(III) for precipitation or use adsorbents, anion exchange or RO with laboratory verification.