識別子と物理属性
| CAS No. | 53373-50-5 |
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| 分子式 | Nb |
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| 平均分子量 | 92.9064 g/mol |
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| 単同位体質量 | 92.90637 g/mol |
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| SMILES | [Nb] |
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| InChIKey | GUCVJGMIXFAOAE-UHFFFAOYSA-N |
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| PubChem CID | 23936 |
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| ChEBI | CHEBI:33344 |
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| EC No. | 231-113-5 |
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| DTXSID | DTXSID4052479 |
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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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| 密度 | 8.57 @25 °C |
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| 沸点 | 4742 °C @760 [mm Hg] |
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| 融点 | 2468 °C |
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| Physical Description | Shiny, soft, ductile metal that develops a bluish cast after oxidizing in air at room temperature over a long time or after heating to 200 deg C[http://periodic.lanl.gov/elements/41.html] |
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安全性と法規制
| GHS 分類 | This chemical does not meet GHS hazard criteria for 58% (307 of 529) of all reports.DangerH228 (34%): Flammable solid [Danger Flammable solids]P210, P240, P241, P280, and P370+P378 (click each P-code to see the statement)Aggregated GHS information provided per 529 reports by companies from 7 notifications to the ECHA C&L Inventory.Reported as not meeting GHS hazard criteria per 307 of 529 reports by companies.There are 6 notifications provided by 222 of 529 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. |
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| 規制情報 | Chemical: NiobiumStatus: Active Update: 16-01-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15401Niobium, powder: Does not have an individual approval but may be used under an appropriate group standard |
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| その他の安全情報 | IMAP assessments - Niobium: Human health tier I assessment |
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| 有害性の概要 | A severe skin irritantToxicity by ingestion is low. [Sax] |
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| Hazard Classes and Categories | Flam. Sol. 2 (34%) |
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| CSL Reaction Information | CSL00090NIOBIUM + TITANIUMacid etched Niobium titanium (NbTi) filaments are combustible upon exposure to static electricity or electrostatic discharge.FlammableUser-Reported2/27/18 |
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| Protective Action Criteria (PAC) | 10 [mg/m3]110 [mg/m3]660 [mg/m3] |
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