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85260

Sigma-Aldrich

Silver(I) oxide

purum p.a., ≥99.0% (AT)

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About This Item

Empirical Formula (Hill Notation):
Ag2O
CAS Number:
20667-12-3
Molecular Weight:
231.74
EC Number:
243-957-1
MDL number:
MFCD00003404
UNSPSC Code:
12352303
PubChem Substance ID:
329769368
NACRES:
NA.21

grade

purum p.a.

Quality Level

200

assay

≥99.0% (AT)

form

powder

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Na: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

[Ag]O[Ag]

InChI

1S/2Ag.O

InChI key

KHJDQHIZCZTCAE-UHFFFAOYSA-N

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General description

Silver(I) oxide reacts with CO2 present in the atmosphere to afford silver carbonate. It is widely used in the preparation of ceramic pigments. It participates in the Arndt-Eistert synthesis.

Application

Silver(I) oxide may be used in the synthesis of following:
  • (RS)-malic acid
  • 1,2-(o)-benzoquinone
  • polysubstituted cyclic ethers

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 1

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Eagleson M.
Concise Encyclopedia Chemistry, 90-90 (1994)
Abderrahim Bouzide et al.
Organic letters, 4(14), 2329-2332 (2002-07-06)
[reaction: see text] The reaction of symmetrical diols and oligo(ethylene glycol)s with a stoichiometric amount of p-toluenesulfonyl chloride in the presence of silver(I) oxide and a catalytic amount of potassium iodide led selectively to the monotosylate derivatives in high yields.
Frédéric Louërat et al.
Organic & biomolecular chemistry, 9(6), 1768-1773 (2011-01-26)
The concomitant use of silver oxide and catalytic amount of TBAF allowed the efficient and chemoselective coupling of readily available 4-chloro- and 4-methyl-2-trimethyl-silyl-pyridines with heteroaromatic and aromatic halides. Based on control experiments, a mechanism involving the formation of a pyridylsilver
Woonsup Shin et al.
Analytical chemistry, 83(12), 5023-5025 (2011-05-10)
When a current or a voltage is applied across the ceramic membrane of the nongassing Ag/Ag(2)O-SiO(2)-Ag/Ag(2)O pump, protons produced in the anodic reaction 2Ag(s) + H(2)O → Ag(2)O(s) + 2H(+) + 2e(-) are driven to the cathode, where they are
J Karuppiah et al.
Journal of hazardous materials, 237-238, 283-289 (2012-09-15)
Total oxidation of mixture of dilute volatile organic compounds was carried out in a dielectric barrier discharge reactor with various transition metal oxide catalysts integrated in-plasma. The experimental results indicated the best removal efficiencies in the presence of metal oxide
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