# Fenton's reagent

> English word · Noun

## Definitions
1. A solution of hydrogen peroxide with ferrous iron, used as a catalyst to oxidize contaminants or waste waters.

## Etymology
Developed in the 1890s by Henry John Horstman Fenton as an analytical reagent.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fenton-s-reagent