Why does Hach's Sulfide 2 reagent contain potassium dichromate, when it is not contained in the Standard Methods version?

Document ID

Document ID TE4391

Version

Version 3.0

Status

Status Published

Published Date

Published Date 03/21/2019
Question
Why does Hach's Sulfide 2 reagent contain potassium dichromate, when it is not contained in the Standard Methods version?
Summary
Sulfide 2 reagent contain potassium dichromate
Answer
Standard Methods uses ferric ion as the oxidant. Dichromate as a replacement improves the blank color.

Was this answer helpful?

Submitting...
Thank you for your feedback!
There was an error with your submission. Please try again.