Sodium biselenite, 98%

Name: Sodium biselenite, 98%
Brand: Vaqora Chemicals
SKU: VQ-014113

About Sodium biselenite, 98%

Sodium biselenite (CAS 7782-82-3) is an alkali metal compound offered by Vaqora Chemicals with a typical assay of ≥98%. With the molecular formula HNaO3Se, it has a molar mass of 150.97 g/mol. The IUPAC name is sodium hydrogen selenite. Common synonyms include Sodium hydroselenite and Monosodium Selenite.

In its supplied form it is white powder or crystal or chunks. 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.

It is commonly used for ceramics and glass and materials research. It is used across academic and industrial research.

Standard pack sizes are 25 g, 100 g, 500 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Ceramics & glass
Materials research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sodium biselenite, 98%
Catalogue No.	VQ-014113
CAS Number	7782-82-3
IUPAC name	sodium hydrogen selenite
Molecular formula	HNaO₃Se
Molecular weight	150.97 g/mol
Exact mass	151.8989
Purity / assay	≥98%
HSN code	28419000
InChIKey	OHYAUPVXSYITQV-UHFFFAOYSA-M
SMILES	O[Se](=O)[O-].[Na+]
PubChem CID	23669629

Physical properties
Physical form	Crystalline
Appearance	White powder or crystal or chunks
H-bond donors / acceptors	1 / 3
TPSA	60.4 Å²
UN number	UN 2630
Synonyms	Sodium hydroselenite, Monosodium Selenite, Sodium hydrogenselenite, Selenious acid, monosodium salt, Sodium selenite (NaHSeO3), Hydrogen sodium selenium oxide, Hydrogen sodium selenite, Sodium hydrogen trioxoselenite, Sodium hydrogen selenite, purum p.a., >=96.0% (RT)

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H300+H330Fatal if swallowed or if inhaled
H300Fatal if swallowed
H301Toxic if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H330Fatal if inhaled
H331Toxic if inhaled
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P260, P261, P264, P264 + P265, P270, P271, P272, P273, P280, P284, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P319, P320, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P391

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

Frequently asked questions

What is the CAS number of Sodium biselenite, 98%?

The CAS Registry Number of Sodium biselenite, 98% is 7782-82-3. It is also known as Sodium hydroselenite, Monosodium Selenite, Sodium hydrogenselenite.

What is the molecular formula and molecular weight of Sodium biselenite, 98%?

Sodium biselenite, 98% has the molecular formula HNaO3Se and a molecular weight of 150.97 g/mol. Its IUPAC name is sodium hydrogen selenite.

Which grade and pack sizes of Sodium biselenite, 98% can I order?

We supply Sodium biselenite, 98% in (≥98%) grade, in 25 g, 100 g, 500 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium biselenite, 98%?

Yes. Every lot of Sodium biselenite, 98% 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 biselenite, 98% be shipped internationally?

Yes. Sodium biselenite, 98% 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.