식별자 및 물리적 특성
| CAS No. | 53373-50-5 |
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| 분자식 | Nb |
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| 평균 분자량 | 92.9064 g/mol |
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| 단동위원소 질량 | 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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화학 및 물리적 성질
| 극성 표면적 | 0 |
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| 수소 결합 공여자 수 | 0 |
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| 수소 결합 수용자 수 | 0 |
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| 회전 가능 결합 수 | 0 |
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| 무거운 원자 수 | 1 |
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| 형식 전하 | 0 |
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| 복잡도 | 0 |
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| 밀도 | 8.57 @25 °C |
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| 끓는 점 | 4742 °C @760 [mm Hg] |
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| 녹는점 | 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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안전 및 규제
| GHS 분류 | 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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| 규제 정보 | 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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| 기타 안전 정보 | IMAP assessments - Niobium: Human health tier I assessment |
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| 유해성 요약 | 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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