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71950

Sodium selenite

anhydrous, ≥90.0% (RT)

Synonym(s):

Selenious acid disodium salt

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About This Item

Linear Formula:
Na2SeO3
CAS Number:
10102-18-8
Molecular Weight:
172.94
NACRES:
NA.22
PubChem Substance ID:
329763654
UNSPSC Code:
12352302
EC Number:
233-267-9
MDL number:
MFCD00003489
Assay:
≥90.0% (RT)
Form:
powder
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Quality Level

200

assay

≥90.0% (RT)

form

powder

loss

≤0.5% loss on drying, 200 °C

mp

>350 °C (lit.)

SMILES string

[Na+].[Na+].[O-][Se]([O-])=O

InChI

1S/2Na.H2O3Se/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

BVTBRVFYZUCAKH-UHFFFAOYSA-L

Application

Sodium selenite is a common source of selenium in the synthesis of zinc selenide (ZnSe). It is used as a key precursor in the synthesis of bismuth selenide nanocomposites, nickel cobalt selenides, selenium nanobelts and t-selenium nanotubes.
Sodium selenite can be used:
  • In dehydrogenation of benzoins to benzils and, flavanones to flavones under thermal and microwave conditions.
  • As a catalyst along with cysteine or glutathione in the reductive debromination of vic-dibromides to alkenes.
  • To prepare bis(methylmercuric) selenide (BMS) by reacting with methylmercuric chloride and reduced glutathione or cysteine.

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pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

supp_hazards

EUH031

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG3610
BCCF9834
BCCB7565
BCBZ6522
BCBV3178

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Articles

膳食抗氧化剂

抗氧化剂可保护生物系统免受含氧自由基和氧化还原过渡金属离子（如铁、铜和镉）引起的氧化损伤。

Dietary Antioxidants

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

Hydrothermal synthesis and high photocatalytic activity of 3D wurtzite ZnSe hierarchical nanostructures.
Cao F, et al.
The Journal of Physical Chemistry C, 112(44), 17095-17101 (2008)
Nucleation- dissolution- recrystallization: a new growth mechanism for t-selenium Nanotubes.
Xi G, et al.
Crystal Growth & Design, 6(2), 577-582 (2006)
Selenium-catalysed debromination of vic-dibromides to alkenes with cysteine or glutathione
Yanada, Kazuo and Yanada, Reiko and Meguri, Haruo
Journal of the Chemical Society. Chemical Communications, 2008(10), 730-732 (1990)
View All Related Papers

Global Trade Item Number

SKUGTIN
71950-100G04061832855332
71950-500G04061833440957