---
title: Stannous Oxide
date: 2025-03-05T12:13:04Z
modified: 2026-09-14T12:42:49Z
permalink: "https://allanchem.com/stannous-oxide/"
type: page
status: publish
excerpt: ""
wpid: 4526
timestamp: 2026-09-14T12:42:49Z
tags: []
---

##### CAS Number

21651-19-4















##### Grade

NA















##### Packaging

Bag







































Stannous Oxide, commonly known as tin(II) oxide or tin dioxide, is a chemical compound with the formula SnO. It is a black solid that occurs naturally as the rare mineral romarchite. Stannous oxide is an important material in various applications.
**Chemical Formula:** SnO
**Appearance:** A white, odorless solid.
**Uses:**
**Cosmetic and personal care Industry:** It is used for its astringent, antimicrobial, and antioxidant properties to treat acne, reduce inflammation, and promote skin health.
**Textile Dyeing:** Used as a mordant in historical textile dyeing processes to fix dyes to fabrics.
**Reducing Agent:** Limited historical use as a reducing agent in some chemical reactions.
**Chemical Industry:** Used as a reducing agent or catalyst in chemical reactions and processes, including organic synthesis, polymerization, and oxidation-reduction reactions.
**Textile Industry:** It helps improve color uniformity, durability, and washfastness of dyed or printed materials.







































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