Does Hach have a procedure for measuring carbonates?

Document ID

Document ID TE1372

Published Date

Published Date 25/01/2018
Question
Does Hach have a procedure for measuring carbonates?
Summary
Carbonate from alkalinity
Answer
This can be determined by performing alkalinity tests. Alkalinity of water is due primarily to the presence of bicarbonate, carbonate, and hydroxide ions. Carbonate ions (CO 3 2-) are able to react with and neutralize 2 hydrogen ions (H+) and the bicarbonate ions (HCO 3 -) are able to neutralize hydrogen ions (H+) or hydroxide ions (OH-) present in water.
Carbonate concentration can be estimated by the phenolphthalein and total alkalinity measurements and use of the "Alkalinity Relationship Table" located in the Alkalinity, Phenolphthalein and Total Alkalinity Method 8203.