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31445-M

Sigma-Aldrich

Sodium peroxide

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

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Synonym(s):
Sodium superoxide
Empirical Formula (Hill Notation):
Na2O2
CAS Number:
Molecular Weight:
77.98
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

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-): ≤0.002%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.001%

cation traces

Al: ≤0.001%
Fe: ≤0.002%

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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