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Silver oxide

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Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-66670886
Products Intro: Product Name:Silver oxide
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:20667-12-3
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: career henan chemical co
Tel: +86-371-86658258
Products Intro: Product Name:Silver oxide
Purity:99% Package:1KG/Tin;10USD
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 86-18871470254
Products Intro: Product Name:Silver(I) oxide
Purity:99% Package:5KG;1KG
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
Products Intro: Product Name:Silver oxide

Lastest Price from Silver oxide manufacturers

  • Silver oxide
  • US $10.00 / KG/Tin
  • 2019-07-06
  • CAS:20667-12-3
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 100
Silver oxide Basic information
Chemical Properties Uses Preparation Reactions
Product Name:Silver oxide
Synonyms:Silver(I) Oxide 99.5%;Silver(I) oxide, 99+% 10GR;Silver(I) oxide, 99+% (metals basis);SILVER OXIDE pure;Oxydisilver(I);Silver(Ⅰ)Oxide;Silver(I) oxide (metals basis);Silver(I) oxide, 99+% (99.99%-Ag) PURATREM
Product Categories:Inorganics;Catalysis and Inorganic Chemistry;Chemical Synthesis;Oxides;Silver;SilverMetal and Ceramic Science;Metal and Ceramic Science;metal oxide
Mol File:20667-12-3.mol
Silver oxide Structure
Silver oxide Chemical Properties
Melting point 300°C (dec.)
density 7,143 g/cm3
storage temp. Store below +15°C.
form Powder/Solid
color Dark-brown
Specific Gravity7.22
Water Solubility slightly soluble
Sensitive Light Sensitive
Merck 14,8521
Stability:Stable. Oxidiser. Incompatible with most common metals, ammonia, magnesium, many organic materials.
CAS DataBase Reference20667-12-3(CAS DataBase Reference)
EPA Substance Registry SystemSilver(I) oxide (20667-12-3)
Safety Information
Hazard Codes O,Xi,C,N
Risk Statements 36/37/38-8-34-50/53-41
Safety Statements 17-26-36-45-36/37/39-61-60-39
RIDADR UN 1479 5.1/PG 2
WGK Germany 2
RTECS VW4900000
HazardClass 5.1
PackingGroup II
HS Code 28432900
ToxicityLD50 orally in rats: 2.82 g/kg (Smyth)
MSDS Information
Silver(I) oxide English
SigmaAldrich English
ACROS English
ALFA English
Silver oxide Usage And Synthesis
Chemical PropertiesSilver Oxide (Ag2O) is a heavy, brownish black powder, easily reduced by exposure to light. odorless; metallic taste. Soluble in ammonium hydroxide, potassium cyanide solu- tion, nitric acid, and sodium thiosulfate solution; slightly soluble in water; insoluble in alcohol.

Silver Oxide has been known for several centuries, and it is still widely used in synthetic chemistry, including in novel strategies. It has many applications: it can act as a base – due to the presence of oxide –, as an oxidant – due to its easy reduction to metallic silver –, as an halogen scavenger – due to the precipitation of silver halides –, or as a source of silver ion, particularly useful for organometallics preparation.
UsesSilver oxide is used for polishing and coloring glass yellow. Also, it is used in purifying drinking water; as a catalyst; and as a germicide and parasiticide.
Silver oxide has been used as a base and halide abstracting agent in the synthesis of areneruthenium metallacyclic complexes of dianionic chelating ligands.
Silver oxide is a potentially valuable regenerative CO2 sorbent for space applications because it is a nontoxic solid that reacts with atmospheric CO2 at room temperature to form nontoxic solid silver carbonate.
PreparationSilver Oxide is prepared by the reaction of aqueous silver nitrate and hydroxide salts.
Ag2O is poorly soluble in all common solvents including water. It is however readily soluble in ammonia, leading the Tollens'reagent which possesses a historical importance in the development of organic chemistry. This also illustrates the fact that (as for other metal-based reagents), properties of Ag2O may depend on the formation of complexes in the reaction medium.
Other commercially important silver chemicals include silver oxide which is used in batteries and silver cyanide which is used in electroplating.
ReactionsMediates monoprotection of symmetrical diols with alkyl halides in good to excellent yield.
Silver(I) oxide may be used to mediate the following processes:
Selective monoalkylation of symmetric diols in the presence of alkyl halide.
Palladium catalyzed cross-coupling of aryl- and alkenylsilanols with organic halides.
Palladium-catalyzed reaction of aryl and alkenyl halides with terminal alkynes to form arylated or alkenylated alkynes, respectively.
Chemical PropertiesSilver(I) oxide, Ag2O, is made by action of oxygen under pressure on silver at 300 °C, or by precipitation of a silver salt with carbonate-free alkali metal hydroxide; it is covalent, each silver atom (in solid Ag2O) having two collinear bonds and each oxygen atom four tetrahedral ones; two such interpenetrating lattices constitute the structure.
Physical propertiesBrownish-black cubic crystals; density 7.14 g/cm3 at 16°C; begins to decompose around 200°C, decomposition becoming rapid at 250 to 300°C; insoluble in water and ethanol; soluble in acids and alkalis; sparingly soluble in solutions of caustic alkalis; insoluble in alcohol.
UsesAs catalyst; in the purification of drinking water; in the glass industry (polishing, coloring glass yellow).
PreparationSilver(I) oxide is precipitated by mixing solutions of silver nitrate and caustic soda: 2AgNO3 + 2NaOH → Ag2O + 2NaNO3 + H2O.
General DescriptionOdorless brown-black solid. Sinks in water.
Reactivity ProfileHydrogen sulfide is rapidly oxidized and may ignite in contact with Silver oxide [Bretherick 1979 p. 977]; Mixtures of metal sulfides, gold(III) sulfide, antimony sulfide or mercury (II) sulfide, phosphorus, sulfur, selenium, and selenium disulfide ignite on grinding with the oxide. Ammonia or hydrazine slowly react with Silver oxide forming silver nitride or in the presence of alcohol, silver fulminate may also be produced [Bretherick 1979 p. 203]. Oxidation of magnesium is explosive when warmed with Silver oxide.
HazardFire and explosion risk in contact with organic materials or ammonia.
Health HazardContact with eyes causes mild irritation. If continued for a long period, ingestion or inhalation of silver compounds can cause permanent discoloration of the skin (argyria).
Fire HazardBehavior in Fire: Decomposes into metallic silver and oxygen. If large quantities are involved, the oxygen might increase the intensity of the fire.
Safety ProfileA poison by intraperitoneal route. Moderately toxic by ingestion. Flammable by chemical reaction; an oxidizing agent. Explodes in contact with ammonia. Incompatible with CuO, (NH3 + ethanol), (hydrazine + ethanol), CO, HzS, Mg, auric sulfide, Sb sulfide, Hg sulfide, nitroalkanes, Se, S, P, K, Na, NaK, seleninyl chloride. See also SILVER COMPOUNDS.
Purification MethodsLeach the oxide with hot water in a Soxhlet apparatus for several hours to remove any entrained electrolytes. [Glemser & Sauer in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1037 1965.]
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