Basic information
- Name:
Silver oxide
- CAS No.:
20667-12-3
- Molecular Structure:
- Formula:
- Ag2O
- Molecular Weight:
- 231.74
- Deleted CAS:
- 1302-04-1
- Synonyms:
- Argentousoxide;Disilver monoxide;Disilver oxide;Silver oxide (Ag2O);Silver(I) oxide;
- EINECS:
- 243-957-1
- Density:
- 7.143 g/cm3
- Melting Point:
- 300 °C (dec.)
- Solubility:
- Soluble in dilute acid, ammonia and sodium cyanide solution, slightly soluble in sodium hydroxide solution, almost insoluble in water and ethanol
- Appearance:
- dark brown or black powder
- Hazard Symbols:
O, 
Xi, 
C- Risk Codes:
- 36/37/38-8-34
- Safety Description:
- 17-26-36-45-36/37/39 Details
- Transport Information:
- UN 1479 5.1/PG 2
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Specification
The systematic name of this chemical is Silver oxide (Ag2O). With the CAS registry number 20667-12-3 and EINECS 243-957-1, it is also named as Disilver oxide. The product's categories are Inorganics; Catalysis and Inorganic Chemistry; Chemical Synthesis; Oxides; Silver; Silver Metal and Ceramic Science; Metal and Ceramic Science. It is dark brown or black powder which is soluble in dilute acid, ammonia and sodium cyanide solution, slightly soluble in sodium hydroxide solution, almost insoluble in water and ethanol. Like many silver compounds, silver oxide is photosensitive. It also decomposes at temperatures above 280 °C. Additionally, this chemical should be sealed in the container, avoided direct sunshine and stored in the cool and dry place which must be away from fuel, organic matter, sulfur and phosphorus.
Preparation of Silver oxide: It can be obtained by the solutions of silver nitrate and an alkali hydroxide. Such as: 2 AgNO3+2 NaOH→Ag2O+2 NaNO3+H2O
Uses of Silver oxide: It is used as a mild oxidizing agent and in organic chemistry. For example it can oxidize aldehydes to carboxylic acids. It is also used in a silver-oxide battery. What's more, it is used as polishing agents and coloring agents of glass, battery plates, catalysts and water purifying agent. Besides, Silver oxide is sued as antiseptic and analytical reagent.
When you are using this chemical, please be cautious about it as the following:
It can cause burns. It is also irritating to eyes, respiratory system and skin. Contact with combustible material may cause fire, so people should keep it away from combustible material. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
People can use the following data to convert to the molecule structure.
1. SMILES:[Ag]O[Ag]
2. InChI:InChI=1/2Ag.O/rAg2O/c1-3-2
3. InChIKey:KHJDQHIZCZTCAE-FQKFHCGGAZ
The following are the toxicity data which has been tested.
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 37mg/kg (37mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 27(12), Pg. 33, 1983. | |
| mouse | LD50 | oral | 1027mg/kg (1027mg/kg) | BEHAVIORAL: TETANY LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 27(12), Pg. 33, 1983. |
| rat | LD50 | intraperitoneal | 70mg/kg (70mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 27(12), Pg. 33, 1983. | |
| rat | LD50 | oral | 2820mg/kg (2820mg/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. |