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31445

Sigma-Aldrich

Sodium peroxide

puriss. p.a., ACS reagent, reag. ISO, ≥95%

Synonym(s):

Sodium superoxide

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About This Item

Empirical Formula (Hill Notation):
Na2O2
CAS Number:
Molecular Weight:
77.98
EC Number:
MDL number:
UNSPSC Code:
12352304
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

Agency

reag. ISO

Assay

≥95%

form

powder

impurities

≤0.002% heavy metals (as Pb)
≤0.003% total nitrogen (N)

pH

12.8 (20 °C, 100 g/L)

mp

460 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤20 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

cation traces

Al: ≤10 mg/kg
Fe: ≤20 mg/kg

SMILES string

[Na+].[Na+].[O-][O-]

InChI

1S/2Na.O2/c;;1-2/q2*+1;-2

InChI key

PFUVRDFDKPNGAV-UHFFFAOYSA-N

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General description

Sodium peroxide (Sodium superoxide) has been synthesized by the matrix reaction of sodium atoms and oxygen molecules at high dilution in argon. Its IR spectral studies have been reported.

Application

Sodium peroxide may be used for the isotope dilution inductively coupled plasma mass spectrometric quantification of Ru, Pd, Ir, Pt and rare earth elements (such as Y, Th, Zr, Hf, Nb and Ta) in various geological samples.

Pictograms

Flame over circleCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Ox. Sol. 1 - Skin Corr. 1A

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 1

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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Determination of platinum, palladium, ruthenium and iridium in geological samples by isotope dilution inductively coupled plasma mass spectrometry using a sodium peroxide fusion and tellurium coprecipitation
Enzweiler J, et al.
Analyst, 120(5), 1391-1396 (1995)
Infrared spectra and bonding in the sodium superoxide and sodium peroxide molecules.
Andrews L.
The Journal of Physical Chemistry, 73(11), 3922-3928 (1969)
R J Calvert et al.
The American journal of clinical nutrition, 49(5), 901-903 (1989-05-01)
A safer method of oxidation of Cr2O3-containing fecal samples from transit-time studies was developed using sodium peroxide to replace perchloric acid as the oxidizing agent. The percentage recovery of Cr2O3 with this method was compared with that of perchloric acid
S Kesten et al.
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 74(3), 269-273 (1995-03-01)
Atmospheric pollution has been proposed as one of the possible factors responsible for increases in asthma mortality and morbidity. We sought to examine whether we could demonstrate a relationship between emergency room visits for asthma and alterations in environmental conditions.
Christine Sedgley
Journal of the history of dentistry, 52(2), 61-65 (2004-08-06)
The concept of the germ theory of disease combined with the development of dentistry during the latter half of the 19th century had a direct effect on the practice of endodontics. The significance of root canal irrigation to endodontics strengthened

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