Sodium selenite, pentahydrate, GR 99%+

Name: Sodium selenite, pentahydrate, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-003218

About Sodium selenite, pentahydrate, GR 99%+

Vaqora Chemicals supplies Sodium selenite, pentahydrate in AR grade, a cell culture reagent registered under CAS number 26970-82-1 at a purity of ≥99%. Formula H10Na2O8Se, molecular weight 263.03 g/mol. Its systematic (IUPAC) name is disodium. Selenite. Pentahydrate. Alternative names: Sodium selenite pentahydrate and Selenious acid, disodium salt, pentahydrate.

The material typically appears as white powder or crystalline powder or chunks. Literature values give a density of 3.1 g/cm3. Solubility: insoluble in alcohol, ethanol. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include cell culture, media supplementation, cell-based assays and organic synthesis. Typical end-use sectors are academic and industrial research and diagnostics and biotechnology.

We offer Sodium selenite, pentahydrate in 25 g, 100 g, 1 kg and 5 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Cell culture
Media supplementation
Cell-based assays
Organic synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium selenite, pentahydrate, GR 99%+
Catalogue No.	VQ-003218
CAS Number	26970-82-1
IUPAC name	disodium;selenite;pentahydrate
Molecular formula	H₁₀Na₂O₈Se
Molecular weight	263.03 g/mol
Exact mass	263.9336
Grade	AR
Purity / assay	≥99%
HSN code	28429090
InChIKey	TUANAMBRHOLYTH-UHFFFAOYSA-L
SMILES	O.O.O.O.O.[O-][Se](=O)[O-].[Na+].[Na+]
PubChem CID	134930

Physical properties
Physical form	Powder
Appearance	White powder or crystalline powder or chunks
Density	3.1 g/cm3
Solubility	Insoluble in alcohol, ethanol
H-bond donors / acceptors	5 / 8
TPSA	68.2 Å²
UN number	UN 2630
Synonyms	Sodium selenite pentahydrate, Selenious acid, disodium salt, pentahydrate, Sodium selenite pentahydate, disodium selenite pentahydrate, sodium selenite hydrate, Sodium selenite (Na2SeO3) pentahydrate, Selenious Acid Disodium Salt Pentahydrate, Na2SeO3.5H2O, disodium selenite hydrate, sodium selenite--water (1/5), Sodium selenite--water (2/1/5), Selenious acid disodium salt, pentahydrate

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Environmental hazard

Signal word: Danger

Hazard statements

H300Fatal if swallowed
H317May cause an allergic skin reaction
H330Fatal if inhaled
H331Toxic if inhaled
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P260, P261, P264, P270, P271, P272, P273, P280, P284, P301 + P316, P302 + P352, P304 + P340, P316, P320, P321, P330, P333 + P317, P362 + P364, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 26970-82-1

Sodium selenite, pentahydrate, 99%

CAS: 26970-82-1
Formula: H₁₀Na₂O₈Se
MW: 263.03 g/mol

VQ-003217

BP / LR

Sodium selenite, pentahydrate, BP, LR ≥98.5%

CAS: 26970-82-1
Formula: H₁₀Na₂O₈Se
MW: 263.03 g/mol

VQ-046922

Frequently asked questions

What is the CAS number of Sodium selenite, pentahydrate, GR 99%+?

The CAS Registry Number of Sodium selenite, pentahydrate, GR 99%+ is 26970-82-1. It is also known as Sodium selenite pentahydrate, Selenious acid, disodium salt, pentahydrate, Sodium selenite pentahydate.

What is the molecular formula and molecular weight of Sodium selenite, pentahydrate, GR 99%+?

Sodium selenite, pentahydrate, GR 99%+ has the molecular formula H10Na2O8Se and a molecular weight of 263.03 g/mol.

Which grade and pack sizes of Sodium selenite, pentahydrate, GR 99%+ can I order?

We supply Sodium selenite, pentahydrate, GR 99%+ in AR (≥99%) grade, in 25 g, 100 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium selenite, pentahydrate, GR 99%+?

Yes. Every lot of Sodium selenite, pentahydrate, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Sodium selenite, pentahydrate, GR 99%+ be shipped internationally?

Yes. Sodium selenite, pentahydrate, GR 99%+ is classified as hazardous (UN 2630), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.