Stannous oxide

Name: Stannous oxide
Brand: Vaqora Chemicals
SKU: VQ-015355

About Stannous oxide

Stannous oxide is a main-group metal compound (Extra Pure grade) carrying the CAS registry number 21651-19-4 at a purity of 98%. Formula OSn, molecular weight 134.71 g/mol. The IUPAC name is oxotin. Alternative names: Tin(II) oxide and Tin monoxide.

It is supplied as a brown to grey to black powder. 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.

Key uses span materials research and chemical synthesis. Typical end-use sectors are academic and industrial research.

Vaqora Chemicals supplies Stannous oxide in 100 g, 500 g, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Stannous oxide
Catalogue No.	VQ-015355
CAS Number	21651-19-4
IUPAC name	oxotin
Molecular formula	OSn
Molecular weight	134.71 g/mol
Exact mass	135.8971
Grade	Extra Pure
Purity / assay	98%
HSN code	28259010
InChIKey	QHGNHLZPVBIIPX-UHFFFAOYSA-N
SMILES	O=[Sn]
PubChem CID	88989

Physical properties
Physical form	Powder
Appearance	Brown to grey to black powder
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²
Synonyms	Tin(II) oxide, Tin monoxide, Tin oxide (Sn2O2), Tin (II) Oxide, stannanone, TIN OXIDE (SnO), Tin(2+) oxide, T 1186, Tego RL, Tin dioxide, Tin dioxide (SnO2), Tin(IV) oxide

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H372Causes damage to organs through prolonged or repeated exposure

Precautionary statements: P260, P261, P264, P264 + P265, P270, P272, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P319, P321, P330, P333 + P317, P337 + P317, P362 + P364, 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 21651-19-4

Stannous oxide, 99.9%

CAS: 21651-19-4
Formula: OSn
MW: 134.71 g/mol

VQ-015356

Frequently asked questions

What is the CAS number of Stannous oxide?

The CAS Registry Number of Stannous oxide is 21651-19-4. It is also known as Tin(II) oxide, Tin monoxide, Tin oxide (Sn2O2).

What is the molecular formula and molecular weight of Stannous oxide?

Stannous oxide has the molecular formula OSn and a molecular weight of 134.71 g/mol. Its IUPAC name is oxotin.

Which grade and pack sizes of Stannous oxide can I order?

We supply Stannous oxide in Extra Pure (98%) grade, in 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Stannous oxide?

Yes. Every lot of Stannous oxide 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 Stannous oxide be shipped internationally?

Yes. Stannous oxide is classified as hazardous, 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.