識別子と物理属性
| CAS No. | 13864-01-2 |
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| 分子式 | La |
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| 平均分子量 | 138.9055 g/mol |
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| 単同位体質量 | 138.9063533 g/mol |
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| SMILES | [La] |
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| InChIKey | FZLIPJUXYLNCLC-UHFFFAOYSA-N |
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| PubChem CID | 23926 |
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| ChEBI | CHEBI:37317 |
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| EC No. | 231-099-0 |
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| DTXSID | DTXSID0064676 |
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化学・物理的性質
| 極性表面積 | 0 |
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| 水素結合供与体数 | 0 |
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| 水素結合受容体数 | 0 |
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| 回転可能結合数 | 0 |
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| 重原子数 | 1 |
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| 形式電荷 | 0 |
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| 複雑度 | 0 |
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| 物質分類 | Metals -> Rare Earth Metals |
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| SpringerMaterials Properties | electron density of states |
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| 密度 | 6.166 @25 °C |
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| 沸点 | 3464 °C @760 [mm Hg] |
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| 融点 | 920 °C |
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| Physical Description | Other SolidWhite, malleable metal that oxidizes in air[Merck Index]Liquid |
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安全性と法規制
| GHS 分類 | This chemical does not meet GHS hazard criteria for 58.9% (146 of 248) of all reports.DangerH228 (23.4%): Flammable solid [Danger Flammable solids]P210, P223, P231+P232, P240, P241, P280, P302+P335+P334, P370+P378, P402+P404, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 248 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
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| 規制情報 | Chemical: LanthanumLanthanum is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Lanthanum are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 23-03-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/5925Lanthanum: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right. |
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| 有害性の概要 | Low to moderate acute toxicity rating[Reference #1] A printer and a movie projectionist exposed to rare earth metals in dusts of cored carbon arc lamps retained lanthanum in their lungs. Side effects (not dose dependent) of the drug lanthanum carbonate include diarrhea, vomiting, and abdominal pain. No liver toxicity has been reported. [Nordberg, p. 906-7] See RARE EARTH METALS and linked occupational diseases. |
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| Hazard Classes and Categories | Flam. Sol. 1 (23.4%) |
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| Protective Action Criteria (PAC) | 30 [mg/m3]330 [mg/m3]2000 [mg/m3] |
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| 有害作用 | Fibrogenic - Inducing tissue injury and fibrosis (scarring). |
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| RAIS Toxicity Values | 5e-05PPRTV Current |
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| EPA Provisional Peer-Reviewed Toxicity Values | Lanthanum5 x 10^-5 mg/kg-dayPDF DocumentInadequate information to assess carcinogenic potential2018 |
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