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213357

Sigma-Aldrich

Mercury(II) oxide red

ACS reagent, ≥99.0%

Synonym(s):

Mercuric oxide red

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About This Item

Linear Formula:
HgO
CAS Number:
21908-53-2
Molecular Weight:
216.59
EC Number:
244-654-7
MDL number:
MFCD00011045
UNSPSC Code:
12352303
PubChem Substance ID:
329752146
NACRES:
NB.24

grade

ACS reagent

Quality Level

200

Assay

≥99.0%

form

powder

reaction suitability

reagent type: catalyst
core: mercury

impurities

≤0.005% N compounds
≤0.03% insol. dil. HCl

reduction residue

≤0.025%

mp

500 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.025%
sulfate (SO42-): ≤0.015%

cation traces

Fe: ≤0.005%

SMILES string

O=[Hg]

InChI

1S/Hg.O

InChI key

UKWHYYKOEPRTIC-UHFFFAOYSA-N

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Related Categories

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Target Organs

Kidney

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Chambers C and Holliday AK.
Inorganic Chemistry, 381-381 (2013)
T Endo et al.
Pharmacology & toxicology, 67(5), 431-435 (1990-11-01)
To obtain evidence for difference in the absorptive forms of HgCl2 and HgO from duodenum, the Hg distributions after the duodenal administration of HgCl2 and HgO and the effect of Na2SeO3 on their Hg distributions were compared. The Hg concentrations
Damir Krznarić et al.
Analytical chemistry, 80(3), 742-749 (2008-01-11)
Mercury electrodes preconcentrate metal chalcogenide nanoparticles effectively, enabling their detection at submicromolar concentrations (as Sigma chalcogenide) by adsorptive cathodic stripping voltammetry. Understanding the unique behavior of nanoparticle analytes during preconcentration is critical for lowering detection limits and for quantification. A
R A Hyndiuk et al.
Antimicrobial agents and chemotherapy, 34(4), 610-613 (1990-04-01)
A double-masked, placebo-controlled, randomized study was done to assess the safety and clinical and quantitative microbiologic efficacy of 1% mercuric oxide (yellow) ophthalmic ointment in the treatment of eyelid infections, i.e., bacterial blepharitis. A total of 39 patients with bacterial
S R Krystek et al.
International journal of peptide and protein research, 34(1), 52-55 (1989-07-01)
Treatment of peptides with excess HgO in the presence of alkaline cyanide leads to cleavage of the peptides at glycine residues. The reaction appears to involve both C- and N-mercuration with subsequent release of 2 mol mercury per mol of
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