Silver oxide

CAS Number
20667-12-3
EC Number
243-957-1

What is Silver oxide?

Silver oxide (CAS 20667-12-3), also known as silver monoxide, is an inorganic silver compound.

Where is Silver oxide used?

  • Pharmaceutical and fine chemical synthesis: selective oxidant for primary alcohols and aldehydes; reagent for silver salts of organic acids
  • Electronics: active cathode material in silver oxide button cells for hearing aids and precision instruments
  • Antimicrobial formulations in medical devices and wound care: sustained silver ion release
  • Biotechnology: catalyst support and precursor for silver nanoparticles in research and diagnostics
  • It functions as a mild oxidizing agent and a source of reactive silver ions.

Good to know: Moisture-controlled packaging is standard due to the compound's light sensitivity during storage.

Commercial specifications

  • High-purity grades meeting ACS or pharmaceutical-grade specifications
  • Packaging from small laboratory quantities to multi-kilogram lots

Other Names (Synonyms)

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

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What are the physical properties of Silver oxide?

Melting Point 300°C (dec.)
Density 7,143 g/cm 3
Appearance dark brown or black powder
Color Dark-brown
Form Powder/Solid
Water Solubility slightly soluble

How is Silver oxide classified and handled safely? Learn More

Danger
GHS03· Oxidizing GHS05· Corrosive GHS09· Environmental Hazard GHS07· Irritant

Hazard Statements

H271 May cause fire or explosion; strong Oxidizer
H272 May intensify fire; oxidizer
H315 Causes skin irritation
H318 Causes serious eye damage

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220 Keep away from clothing and other combustible materials.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.

Which trade and regulatory codes apply to Silver oxide?

HS Code 28432900
UN Number 1479
ADR Class 5.1
Packing Group II
Storage Class 5.1A - Strongly oxidizing hazardous materials
WGK (Germany) 2
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