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645613

Sigma-Aldrich

Sodium oxide

80%

Synonym(s):

Disodium monoxide, Disodium oxide

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50 G
$120.00
250 G
$412.00

About This Item

Linear Formula:
Na2O
CAS Number:
1313-59-3
Molecular Weight:
61.98
MDL number:
MFCD00046201
UNSPSC Code:
12161600
PubChem Substance ID:
24883391
NACRES:
NA.22

$120.00

Available to ship onApril 29, 2025Details

Request a Bulk Order

Quality Level

100

assay

80%

form

solid

reaction suitability

core: sodium
reagent type: catalyst

impurities

~20% Na2O2

density

2.27 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/2Na.O/q2*+1;-2

InChI key

KKCBUQHMOMHUOY-UHFFFAOYSA-N

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General description

Sodium oxide is a strong alkaline oxide, commonly used as an active flux in ceramic glazes.[1]

Application

Sodium oxide has been used as a coating precursor on organic polymer films during the plasma modification to analyze its antimicrobial properties.
Sodium oxide has been used as a coating precursor on organic polymer films during the plasma modification to analyze its antimicrobial properties.[2]

pictograms

Flame over circleCorrosion
GHS03,GHS05

signalword

Danger

hcodes

H271,H314

Hazard Classifications

Eye Dam. 1 - Ox. Sol. 1 - Skin Corr. 1A

Storage Class

5.1A - Strongly oxidizing hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW4888
MKCV7480
MKCW8725
MKCW8724
MKCT9637

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Gianluca Malavasi et al.
The journal of physical chemistry. A, 111(34), 8401-8408 (2007-08-07)
The crystallization kinetics of Na(2)O.CaO.2SiO(2) (x = 0) and 0.68ZnO.Na(2)O.CaO.2SiO(2) (x = 0.68, where x is the ZnO stoichiometric coefficient in the glass formula) bioactive glasses have been studied using both nonisothermal and isothermal methods. The results obtained from isothermal
Mathieu Digne et al.
Physical chemistry chemical physics : PCCP, 9(20), 2577-2582 (2007-05-18)
The sodium cation is well known as an efficient poison of gamma-alumina surface acidity. This poisoning effect has been revealed both by characterization methods and catalytic tests. In this work, we propose an accurate model of sodium exchanged gamma-alumina surfaces.
Gerard Klaver et al.
Environmental pollution (Barking, Essex : 1987), 148(3), 718-728 (2007-04-03)
Large hydropower dams have major impacts on flow regime, sediment transport and the characteristics of water and sediment in downstream rivers. The Gabcikovo and Iron Gate dams divide the studied Danube transect (rkm 1895-795) into three parts. In the Gabcikovo
Hamer F and Hamer J.
The Potter's Dictionary of Materials and Techniques (2004)
Masanobu Kamitakahara et al.
Journal of materials science. Materials in medicine, 20(12), 2419-2426 (2009-07-15)
A simulated body fluid (SBF) with ion concentrations similar to body fluid, proposed by Kokubo et al., is widely used to evaluate bone-bonding potential through the formation of an apatite layer. To be confident of the evaluation of the potential
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Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. I am interested in using Na2O for my experiment. Is it possible to use this salt in an ambient environment? or do we have to use it in Ar based inert environment?

    1 answer

    1. The only handling and storage precautions involving this chemical are keeping it away from open flames, hot surfaces, and sources of ignition. So as long as the chemical is being handled in a in a fume hood, it will be okay.

      Helpful?

  4. ¿En que tipo de atmósfera se encuentra almacenado? Si es inerte, por favor, necesitaría saber si es en argón o en nitrógeno. Muchas gracias

    1 answer

    1. This product is packaged under nitrogen.

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