이산화 몰리브덴
이산화몰리브데넘(이산화몰리브덴) · 이산화몰리브덴 · 이산화몰리브데넘(이산화몰리브덴)(MOLYBDENUMDIOXIDE) · MoO2 · MOLYBDENUM OXIDE · MOLYBDENUM DIOXIDE · Molybdenum(IV) oxide, 99.95% · ioxomolybdenum
식별자 및 물리적 특성
| CAS No. | 18868-43-4 |
|---|---|
| 분자식 | MoO2 |
| 평균 분자량 | 127.95 g/mol |
| 단동위원소 질량 | 129.89523744 g/mol |
| SMILES | [O]=[Mo]=[O] |
| InChIKey | QXYJCZRRLLQGCR-UHFFFAOYSA-N |
| PubChem CID | 29320 |
| EC No. | 242-637-9 |
| DTXSID | DTXSID10879986 |
| 현지명 | 이산화 몰리브덴 |
화학 및 물리적 성질
| 극성 표면적 | 34.1 |
|---|---|
| 수소 결합 공여자 수 | 0 |
| 수소 결합 수용자 수 | 2 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 3 |
| 형식 전하 | 0 |
| 복잡도 | 18.3 |
| 물질 분류 | Metals -> Metals, Inorganic Compounds |
| SpringerMaterials Properties | dielectric constant |
| Physical Description | CBILead-gray solid[Hawley] Red-brown odorless powderInsoluble in water[MSDSonline] Solid (dark blue crystals) that is a metallic conductor and weakly paramagnetic[Ullmann] |
| 녹는점 | decomposes [JAN85] |
| 밀도 | 6.47 g/mL at 25 °C (lit.) |
| 저장 조건 | Store at room temperature, keep dry and cool |
| 용해도 | insoluble in H2O, acid solutions, alkaline solutions |
| 물리적 상태 | 가루 |
| 색상 | 적갈색 |
| 비중 | 6.47 |
| 용해도 | 약간 용해되는 H2SO4용해되지 않음 HCl, HF 및 알칼리 [HAW93] |
| 비열 | Cp(crystal): 0.44 J/(g·K), at 25℃ |
| 주요 응용 | 배터리 제조 |
| InChI | 1S/Mo.2O |
| InChIKey | QXYJCZRRLLQGCR-UHFFFAOYSA-N |
| SMILES | O=[Mo]=O |
| EPA | Molybdenum oxide (MoO2) (18868-43-4) |
화학적 성질
Lead-gray, nonvolatile powder. Dapproximately 6.4. Insoluble in hydrochloric acidand hydrogen fluoride and alkalies, sparingly solu-ble in sulfuric acid.
안전 및 규제
| GHS 분류 | This chemical does not meet GHS hazard criteria for 91.9% (57 of 62) of all reports.Not ClassifiedAggregated GHS information provided per 62 reports by companies from 4 notifications to the ECHA C&L Inventory. |
|---|---|
| 규제 정보 | Chemical: Molybdenum oxide (MoO2)Molybdenum oxide (MoO2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Molybdenum oxide (MoO2) 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: 30-07-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/10167 |
| 유해성 요약 | An irritant[MSDSonline] See Molybdenum. |
| Hazard Classes and Categories | Not Classified |
| Threshold Limit Values (TLV) | 10.0 [mg/m3], as Mo, inhal. fraction, 3 mg/m3, as Mo, respir. fraction (metal and insol. compds) |
| Permissible Exposure Limit (PEL) | 15.0 [mg/m3], as Mo, total dust (metal and insol. compds.) |
| Protective Action Criteria (PAC) | 40 [mg/m3]440 [mg/m3]2600 [mg/m3] |
| 수질 위해 등급(WGK) | 1 |
| TSCA 등재 상태 | TSCA listed |
| RTECS 번호 | QA4688000 |
| 독성 | mouse,LD50,subcutaneous,318mg/kg (318mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974. |
| 관세 코드 | 28257000 |
| 위험 문구(R) | 20/21/22-36/37/38 |
| 위험 표시 | Xn |
| 안전 문구(S) | 26-36 |
| 기존화학 물질 | KE-25436 |
| 저장 분류 | 11 - Combustible Solids |
용도
용도
Molybdenum(IV) oxide (MoO2) is a transition metal oxide with good electrical conductivity due to the presence of delocalized electrons in its valence band. It is traditionally prepared by reducing MoO3 in dry hydrogen in the temperature range of 450-550°C. MoO2 can be used in a variety of energy based applications such as an anode material in rechargeable lithium batteries and fuel flexible solid oxide fuel cells.It can also be used as a catalyst in hydrogen reforming processes.
일반 설명
Molybdenum(IV) oxide (MoO2) is a transition metal oxide with good electrical conductivity due to the presence of delocalized electrons in its valence band. It is traditionally prepared by reducing MoO3 in dry hydrogen in the temperature range of 450-550°C.
제조 및 합성 방법
제조 방법
Molybdenum(IV) oxide is obtained by passing steam over red hot molybdenum: Mo + 2H2O → MoO2 + 2H2 Alternatively, the oxide may be prepared by heating a molybdate salt, such as ammonium molybdate, with a reducing agent such as zinc. The dioxide also may be obtained along with other oxides of molybdenum when molybdenum metal is heated in air. A brown-black suspension of MoO2 in hydrate form may be obtained by reducing a solution of ammonium molybdate with hydrogen in the presence of colloidal palladium.