---
title: Magnesium Sulfate Anhydrous
date: 2025-02-21T09:44:04Z
modified: 2026-09-14T07:23:54Z
permalink: "https://allanchem.com/magnesium-sulfate-anhydrous/"
type: page
status: publish
excerpt: ""
wpid: 2869
timestamp: 2026-09-14T07:23:54Z
tags: []
---

##### CAS Number

7487-88-9















##### Grade

USP















##### Packaging

Bag







































Magnesium Sulfate Anhydrous is a chemical compound with the formula MgSO4. It is the dehydrated form of magnesium sulfate meaning it readily absorbs moisture from the atmosphere, but unlike hydrated forms, it does not have a fixed crystalline structure.
**Chemical Formula:** MgSO4
**Appearance:** Colorless to white crystalline granules or powder.
**Uses:**
**Pharmaceuticals:** Magnesium sulfate anhydrous is used in medical and pharmaceutical applications, primarily as an electrolyte replenisher and laxative. It is administered orally or intravenously to treat magnesium deficiencies, eclampsia, pre-eclampsia, and certain cardiac conditions.
**Laboratory and Analytical Techniques:** In laboratory settings, magnesium sulfate anhydrous is commonly used in analytical chemistry and sample preparation techniques. It may be employed as a drying agent to remove moisture from organic solvents or as a component of buffer solutions and reagent formulations.
**Food Additive:** It is approved for use as a food additive in certain jurisdictions. It may be added to food and beverages as a magnesium supplement or firming agent.
**Additional Applications:** In agriculture, magnesium sulfate anhydrous is employed as a source of magnesium and sulfur nutrients for plants. It is applied to soils or used as a foliar spray to correct magnesium deficiencies, improve soil fertility, and enhance crop yields.







































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