氧化钍（CAS 1314-20-1）：分子式 O2Th、分子量 264.036。
| CAS号 | 1314-20-1 |
|---|---|
| 分子式 | O2Th |
| 分子量 | 264.036 |
| 熔点 | 3390 °C |
| 沸点 | 4400 °C |
| 应用领域 | Commercial mantles are made up of a mesh hood of thorium oxide surrounding a flame and are used in decorative exterior lighting、gasoline lanterns for camping |
登记用途：Commercial mantles are made up of a mesh hood of thorium oxide surrounding a flame and are used in decorative exterior lighting、gasoline lanterns for camping。
氧化钍 是一种化工化合物，登记 CAS 号为 1314-20-1，分子式 O2Th（分子量 264.036）。
登记 CAS 号：1314-20-1
其分子式 O2Th 由 2 个氧、1 个钍 组成。
别名/同义词：氧化钍 · thorium oxide
氧化钍 的 CAS 登记号为 1314-20-1。
分子式 O2Th，分子量 264.036。
别名/同义词：氧化钍、thorium oxide。
登记用途：Commercial mantles are made up of a mesh hood of thorium oxide surrounding a flame and are used in decorative exterior lighting、gasoline lanterns for camping。
氧化钍（CAS 1314-20-1）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 1314-20-1 |
|---|---|
| PubChem CID | 14808 |
| Molecular formula | O2Th |
| IUPAC name | dioxothorium |
| UNII (FDA) | 9XA7X17UQC |
| Molecular Weight | 264.036 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 264.02788 |
| Monoisotopic Mass | 264.02788 |
| Topological Polar Surface Area | 34.1 |
| Heavy Atom Count | 3 |
| Boiling Point | 4400 °C |
|---|---|
| Melting Point | 3390 °C |
| Density | 10.0 |
THORIUM DIOXIDE; Thoria; Thorium oxide (ThO2); 1314-20-1; Umbrathor; Thorium anhydride; Thortrast; Dioxide, Thorium; 9XA7X17UQC; CHEBI:37339; Oxide, Thorium; RefChem:189704; 215-225-1; dioxothorium; Thorium(IV) oxide; ThO2
| Reported hazard statements | H301 (99.5%), H311 (99.5%), H331 (99.5%), H350 (99.5%), H373 (18.8%) |
|---|
H301 (99.5%): Toxic if swallowed [Danger Acute toxicity, oral]
H311 (99.5%): Toxic in contact with skin [Danger Acute toxicity, dermal]
thorium oxide · CAS 1314-20-1 · O2Th. UNII 9XA7X17UQC. Boiling Point: 4400 °C; Melting Point: 3390 °C; Density: 10.0.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: thorium oxide