# Glauber's salt

> English word · Noun

## Definitions
1. sodium sulphate (typically a hydrated form) typically used as a laxative or in dyeing wool.

## Etymology
Glauber+salt. Named after German iatrochemist Johann Glauber (1604–1670) who manufactured sodium sulphate, a salt, in 1656.

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