基本情報
- CAS
1317-34-6- 標準SMILES
[O]=[Mn][O][Mn]=[O]- InChIKey
GEYXPJBPASPPLI-UHFFFAOYSA-N- 分子式
- Mn2O3
- 平均分子量
- 157.874 g/mol
- 単同位体質量
- 157.86083
概要
Manganese(III) oxide is an oxide of manganese. Manganese is a naturally occurring metal with the symbol Mn and the atomic number 25. It does not occur naturally in its pure form, but is found in many types of rocks in combination with other substances such as oxygen, sulfur, or chlorine. Manganese occurs naturally in most foods and small amounts are needed to stay healthy, as manganese ions act as cofactors for a number of enzymes. (L228, L229)
名称と識別子
- 優先名称
- manganese(III) oxide
- IUPAC
- oxo(oxomanganiooxy)manganese
- 現地名
- マンガン (III) オキシド
- 英語名
- Manganese (III) oxide
- 分子式
- Mn2O3
- 分子量
- 157.87
名称と別名
Manganese(III) oxideManganese oxide (Mn2O3)Manganese sesquioxideManganic oxideDimanganese trioxideManganese trioxideManganese manganateManganese sisquioxideManganese(3+) oxideEINECS 215-264-4oxo[(oxomanganio)oxy]manganeseMANGANESE SESQUIOXIDE, Mn2O3
名称をさらに表示
ブラウナイト酸化マンガン(III)三酸化二マンガンマンガン (III) オキシド酸化マンガン(Ⅲ)酸化マンガン(III), 98%manganicoxidemanganesetrioxidemanganese(3+)oxidemanganesemanganatedimanganesetrioxidemanganesesisquioxidemanganeseoxide(mn2o3)Manganese (III) oxideManganese(III)oxide,99%
XQ8YIG4A7Coxo((oxomanganio)oxy)manganeseRefChem:809905bis(manganesoylol) manganeseDTXCID201323887215-264-4DTXSID90893847MANGANESE SESQUIOXIDE [MI]
データベース識別子
物性
構造計算による物性
- 極性表面積
- 43.4 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 3
- 回転可能結合数
- 0
- 重原子数
- 5
- 形式電荷
- 0
- 複雑度
- 34.2
実験および物理化学的性質
Chemical ClassesMetals -> Manganese Compounds, Inorganic
SpringerMaterials Propertiesdielectric constant
Density5 @25 °C
Physical Description
Liquid; Other Solid
Black solid, insoluble in water; [Merck Index]
物理化学的性質
- 融点
- 1080 °C · 1080°C (dec.)
- 比重(密度)
- 4.5 g/mL · 4.5 g/mL at 25 °C(lit.)
- 貯蔵温度
- Store at room temperature, keep dry and cool
- 溶解性
- 2 O · insoluble in H2O
- 外見
- 粉
- 色
- 黒
- 比重
- 4.5 · 4.5
- 水溶解度
- 酸および塩化アンモニウムに可溶。水、アルコール、アセトンに不溶。
- 比熱容量
- 0.68 J/ · Cp(crystal): 0.68 J/(g·K), at 25℃
- Merck
- 14 · 14,5737
- 主な用途
- バッテリー製造
- InChI
- InChI=1S/2Mn.3O
- InChIKey
安全と法規制
安全情報は参考情報です。供給元の安全データシート（SDS）、適用法令、専門家による評価に代わるものではありません。
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 7.9% (38 of 484) of reports.
Warning
H302 (58.7%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 484 reports by companies from 20 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
危険有害性情報
Regulatory Information
Chemical: Manganese oxide (Mn2O3)
Manganese oxide (Mn2O3) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Manganese oxide (Mn2O3) 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)
REACH registered substance: Dimanganese trioxide (EC: 215-264-4)
Manganese oxide (Mn2O3): 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.
Other Safety InformationIMAP assessments - Manganese oxides: Human health tier II assessment
Hazards SummaryFine dust is flammable; Toxic by inhalation; [Hawley] See Manganese and linked occupational diseases.
Hazard Classes and Categories
Acute Tox. 4 (58.7%)
Specific target organ toxicity (repeated exposure) - category 1
Reproductive toxicity - Category 1B
安全と保護具
化学と産業
薬理情報
Metabolism/Metabolites
Manganese is absorbed mainly via ingestion, but can also be inhaled. It binds to alpha-2-macroglobulin, albumin, or transferrin in the plasma and is distributed to the brain and all other mammalian tissues, though it tends to accumulate more in the liver, pancreas, and kidney. Manganese is capable of existing in a number of oxidation states and is believed to undergo changes in oxidation state within the body. Manganese oxidation state can influence tissue toxicokinetic behavior, and possibly toxicity. Manganese is excreted primarily in the faeces. (L228)
用途と製造
Uses
Found in the mineral hausmannite; [Merck Index] Used to produce ceramic magnets and semiconductors; [Ullmann]
Semiconductor Manufacturing [Category: Industry]
U.S. Production2023: <50,000 lb
Household ProductsInformation on 1 consumer products that contain Manganese sesquioxide in the following categories is provided:
General Manufacturing InformationManganese oxide (Mn2O3): ACTIVE
応用分野
使用Manganese(III) oxide is used to produce ceramic magnets and semiconductors. Further, it serves as a precursor to lithium manganese oxide. In addition to this, it acts as a useful battery cathode.
調製方法
製造方法Anhydrous manganese(III) oxide is found as the mineral braunite, Mn2O3, while a hydrated form, Mn2O3.H2O, which is chemically more reactive, occurs as manganite. Manganese forms both anions and cations in oxidation state +3. Simple salts of tervalent manganese are not stable. However, complexes are more stable, the hexacyanomanganates(III) being an example: K3Mn(CN)6 is a red crystalline solid, isomorphous with potassium hexacyanoferrate(III) and slowly hydrolysed. Manganese(III) oxide is formed as a grey solid by heating manganese(IV) oxide to 700°C for several hours: 4MnO2 ---> 2Mn203 + O2 It is converted into trimanganese tetroxide when heated above 940°C in air or reduced by hydrogen above 230°C. Hot concentrated hydrochloric acid is oxidized to chlorine by manganese(III) oxide: Mn203 (s) + 6H + + 2e- ==2Mn2+ + 3H2O Mn203 (s) + 6H + + 2Cl- ---> 2Mn2+ + 3H2O + Cl2
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