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Silver oxide

CAS Number
20667-12-3
EC Number
243-957-1
Chemical Formula
Ag2O
Molecular Weight
231.736 g/mol

Description

Silver oxide (CAS 20667-12-3 ), also known as silver monoxide, is an inorganic silver compound used across pharmaceutical synthesis, electronics manufacturing, and antimicrobial applications. It functions primarily as a mild oxidizing agent and a source of reactive silver ions, enabling controlled chemical transformations and biocidal action without handling complexity. In pharmaceutical and fine chemical synthesis, it serves as a selective oxidant for converting primary alcohols and aldehydes, and as a reagent for preparing silver salts of organic acids. Electronics manufacturers use it as an active cathode material in silver oxide button cells, where its high energy density relative to cell volume suits hearing aids and precision instruments. Antimicrobial formulations in medical devices and wound care products incorporate it to deliver sustained silver ion release for various clinical and industrial applications. In biotechnology, it functions as a catalyst support and precursor in the preparation of silver nanoparticles for research and diagnostic applications in modern laboratories. Silver oxide is supplied as a dark brown to black powder in technical and reagent grades. High-purity grades meeting ACS or pharmaceutical-grade specifications are available. Packaging ranges from small laboratory quantities to multi-kilogram lots, with moisture-controlled packaging standard due to the compound's inherent light sensitivity during storage. Contact us for supply of Silver oxide Request Quote

Other Names (Synonyms)

silver(I) oxide | silver monoxide | argentous oxide | Disilver oxide | AG2O | RefChem:56012 | Silver oxide (Ag2O) | disilver;oxygen(2-)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point300°C (dec.)
Density7,143 g/cm 3
Appearancedark brown or black powder
ColorDark-brown
FormPowder/Solid
Water Solubilityslightly soluble

Safety & Handling

Danger
GHS03· OxidizerGHS05· CorrosiveGHS09· EnvironmentGHS07· Irritant

Hazard Statements

H271May cause fire or explosion; strong Oxidizer
H272May intensify fire; oxidizer
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220Keep away from clothing and other combustible materials.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P283Wear fire-resistant/flame-retardant clothing.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P391Collect spillage.
P405Store locked up.
P420Store away from other materials.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P360IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P375Evacuate area.

Trade & Regulatory

HS Code28432900
UN Number1479
ADR Class5.1
Packing GroupII
Storage Class5.1A - Strongly oxidizing hazardous materials
WGK (Germany)2