8.05958

Manganese(IV) oxide

(precipitated active) for synthesis

• 別名: Manganese(IV) oxide, Manganese dioxide, Pyrolusite
• 実験式（ヒル表記法）: MnO₂
• CAS番号: 1313-13-9
• 分子量: 86.94
• MDL番号: MFCD00003463
• UNSPSCコード: 12352303
• EC Index Number: 215-202-6
• NACRES: NA.22
• フォーム: powder
• 溶解性: insoluble <0.001 g/L

特性

• 品質水準: 200
• フォーム: powder
• 有効性: >3478 mg/kg LD₅₀, oral (Rat)
• 反応適合性: reagent type: oxidant
• 溶解性: insoluble <0.001 g/L
• 密度: 5.21 g/cm³ at 21 °C
• かさ密度: 600‑800 kg/m³
• 保管温度: 2-30°C
• SMILES記法: [Mn](=O)=O
• InChI: 1S/Mn.2O
• InChI Key: NUJOXMJBOLGQSY-UHFFFAOYSA-N

詳細

アプリケーション

Manganese(IV) oxide (MnO₂) can be used as an oxidizing agent for the oxidation of:

• Allylic alcohols to α, β-ethylenic aldehydes, or ketones.
• Propargylic alcohols to alkynic aldehydes or ketones.
• Benzylic and heterocyclic alcohols to conjugated aromatic aldehydes or ketones.
• Amines to aldehydes, imines, amides, and diazo compounds. Methyl arenes to form primary amides in the presence of urea and oxygen.
• MnO₂ can also be used to synthesize disubstituted oxazolines from aldoximes via in situ nitrile oxide formation. Non-activated cyclic and acyclic alcohols oxidized to ketone analogs using stoichiometric MnO₂ and a ruthenium catalyst.

アナリシスノート

Assay (iodometric, calc. on dried substance): ≥ 90.0 %
Loss on drying: ≤ 3.5 %
Oxidation Activity: passes test

安全性情報

• ピクトグラム: GHS07,GHS08
• シグナルワード: Warning
• 危険有害性情報: H302 + H332 - H373
• 注意書き: P260 - P264 - P270 - P301 + P312 - P304 + P340 + P312 - P314
• 危険有害性の分類: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Inhalation
• ターゲットの組織: Brain
• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 1
• 引火点(°F): does not flash
• 引火点(℃): does not flash