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Key Documents

223417

Sigma-Aldrich

Sodium peroxide

granular, +140 mesh particle size, reagent grade, 97%

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:
12352303
PubChem Substance ID:
NACRES:
NA.55

grade:
reagent grade
Assay:
97%
form:
granular
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grade

reagent grade

Assay

97%

form

granular

reaction suitability

reagent type: oxidant

particle size

+140 mesh

pH

12.8 (20 °C, 100 g/L)

mp

460 °C (dec.) (lit.)

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.[1] It is a strong oxidizing agent.[2]
Sodium peroxide is a strong oxidizing and bleaching agent mainly used in bleaching papers and textiles. It is an effective oxidizing flux for the decomposition of minerals and ores.[3]

Application

Sodium peroxide may be used as an oxidant for:
conversion of Δ4-3-ketosteroids to Δ4-3,6-diones[4]
oxidation of alduronic and glyculosonic acids[5]
Sodium peroxide may be used for the isotope dilution inductively coupled plasma mass spectrometric quantification of Ru, Pd, Ir and Pt in various geological samples.[6] It may be employed for the inductively coupled plasma mass spectrometric quantification of rare earth elements (such as Y, Th, Zr, Hf, Nb and Ta) in geological reference materials.[7]

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)

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Oxidation of sodium salts of alduronic and glyculosonic acids by sodium peroxide.
Isbell HS, et al.
Carbohydrate Research, 36(2), 283-291 (1974)
Wiberg E and Wiberg N
Inorganic Chemistry, 502-502 (2001)
Oxidation with sodium peroxide Direct introduction of a ? carbonyl group into a, ? unsaturated ketosteroids
Tetrahedron Letters, 22(51), 5127-5128 (1981)
Eagleson M.
Concise Encyclopedia Chemistry, 1080-1080 (1994)
Infrared spectra and bonding in the sodium superoxide and sodium peroxide molecules.
Andrews L.
The Journal of Physical Chemistry, 73(11), 3922-3928 (1969)

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