Stannous Oxide (CAS 21651-19-4) — formula OSn, molecular weight 134.71; category inorganic chemicals.
| CAS Number | 21651-19-4 |
|---|---|
| Molecular Formula | OSn |
| Molecular Weight | 134.71 |
| Melting Point | 1976 °F@600 mmHg (decomposes) |
| Category | Inorganic Chemicals |
Stannous Oxide is an inorganic compound with CAS registry number 21651-19-4 and molecular formula OSn (molecular weight 134.71), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 21651-19-4
Its molecular formula OSn comprises 1 O, 1 Sn atoms.
Also known as: Stannous Oxide · 氧化亚锡
Category: inorganic chemicals
The CAS registry number of Stannous Oxide is 21651-19-4.
Molecular formula OSn, molecular weight 134.71.
It is also registered under: Stannous Oxide, 氧化亚锡.
Category: Inorganic Chemicals.
Independent reference data for Stannous Oxide (CAS 21651-19-4), compiled from public chemistry databases.
| CAS Registry Number | 21651-19-4 |
|---|---|
| PubChem CID | 88989 |
| Molecular formula | OSn |
| IUPAC name | oxotin |
| Molecular Weight | 134.71 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 135.897117 |
| Monoisotopic Mass | 135.897117 |
| Topological Polar Surface Area | 17.1 |
| Heavy Atom Count | 2 |
| Melting Point | 1976 °F@600 mmHg (decomposes) |
|---|---|
| Melting Point | 1630 °C |
| Melting Point | (600 mmHg): 1976 °F (Decomposes) |
| Density | 6.45 g/cm³ |
| Density | 6.3 |
| Density | 6.95 @25 °C |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
| Vapor Pressure | 0 mmHg |
| Vapor Pressure | 0 mmHg (approx) |
Tin(II) oxide; 21651-19-4; Tin monoxide; Tin oxide (Sn2O2); Tin (II) Oxide; stannanone; TIN PROTOXIDE; RefChem:1100132; 244-499-5; TIN OXIDE (SnO); Tin(2+) oxide; oxotin; MFCD00011243; T 1186; Tego RL; Tin dioxide; Tin dioxide (SnO2); Tin(IV) oxide; (oxo)stannane; Tin Oxide Nanowires
| GHS notification summary | 64.7% (130 / 201) |
|---|
| GHS notification summary | 64.7% (130 / 201) |
|---|---|
| Reported hazard statements | H302 (35.3%), H317 (35.3%), H319 (35.3%), H372 (35.3%) |
This chemical does not meet GHS hazard criteria for 64.7% (130 of 201) of all reports.
H302 (35.3%): Harmful if swallowed [Warning Acute toxicity, oral]
Stannous Oxide · CAS 21651-19-4 · OSn. Melting Point: 1976 °F@600 mmHg (decomposes); Melting Point: 1630 °C; Melting Point: (600 mmHg): 1976 °F (Decomposes).
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 氧化亚锡