Manganese(IV) oxide 二氧化锰

CAS 1313-13-9 MFCD00003463

化学结构图

1313-13-9
SMILES: O=[Mn]=O

化学属性

Mol. FormulaMnO2
Mol. Weight86.94
Melting Point535
Density5.02
SolubilityInsoluble in water, nitric acid, sulfuric acid. Soluble in HCl. In presence of hydrogen peroxide or oxalic acid soluble in dilute HNO3 and H2SO4
TSCAYes
Appearance powder
RedoxOxidation

别名和识别编码

Chemical NameManganese(IV) oxide
Synonym Manganese(IV) oxide {LY} Manganese(IV) oxide {} {LY} Manganese(IV) oxide {} {} {LY} Manganese(IV) oxide {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Manganese(IV) oxide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
MDL NumberMFCD00003463
CAS Number1313-13-9
EC Number215-202-6
Merck Number14,5730
PubChem Substance ID14801
Chemical Name Translation二氧化锰
Wiswesser Line NotationMN O2
LabNetwork Molecule IDLN03299586
InChIInChI=1S/Mn.2O
Canonical SMILESO=[Mn]=O
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分类

  • {SNA} 12 Principles Aligned Products, Alternative Energy, Battery Electrode Materials, Chemical Synthesis, Dopants, Electrode Materials, Greener Alternative Products, Manganese, Material Sciences, Metal and Ceramic Science, Oxides, Phosphor Materials, 材料科学
  • {SNA} Alternative Energy, Dopants, Manganese, Metal and Ceramic Science, Oxides, Phosphor Materials, 材料科学
  • {SNA} 25: MG, Materials Science, Nanomaterials, Nanoparticles: Oxides, Nitrides, and Other Ceramics, Nanopowders and Nanoparticle Dispersions
  • {SNA} Alternative Energy, Battery Electrode

产品应用

  • 氧化剂,特种合金钢,催化剂,干燥剂,测定水泥中的硫化钠。大量用于炼钢, 并用于制玻璃、陶瓷、搪瓷、干电池等。

相关文献及参考

  • For use as a co-oxidant, in combination with 1,4-benzoquinone, in the allylic oxidation of olefins, catalyzed by Palladium(II)­ acetate, 10516, see: Org. Synth. Coll., 8, 5, 137 (1993).
  • Widely used for the selective oxidation of allylic and benzylic alcohols to aldehydes or ketones. See, e.g.: Org. Synth. Coll., 7, 102 (1990); 9, 136 (1998).
  • Merck: 14,5730
  • Short: III/27d
  • Short: III/27g
  • Mild oxidizing agent. For reviews, see: Synthesis, 65, 133 (1976); J. Prakt. Chem./ Chem. Ztg., 337, 75 (1995). See also M. Hudlicky, Oxidations in Organic Chemistry, ACS Monograph 186, Washington DC (1990).

安全信息

RTECSOP0350000
Safety Statements
  • S25 Avoid contact with eyes 避免眼睛接触;
Risk Statements
  • R20/22 Harmful by inhalation and if swallowed 吸入和不慎吞咽有害
GHS Symbol
Hazard statements
  • H302+H332
  • H332 Harmful if inhaled 吸入有害
  • H302 Harmful if swallowed 吞食有害
WGK Germany1
Signal word Warning
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes Xn
Packing GroupIII
UN Number UN1479 3137
Storage condition Store at room temperature {LY} Store at room temperature {} {LY} Store at room temperature {} {} {LY} Store at room temperature {} {} {} {LY} Store at room temperature {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intratracheal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 50 mg/kg
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - emphysema
   Lungs, Thorax, or Respiration - acute pulmonary edema
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 20(1),25,1955

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 422 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ZVKOA6 Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva.
   Journal of the D.I. Mendeleeva All-Union Chemical Society.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.5-    1960-
   Volume(issue)/page/year: 19,186,1974

TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 45 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85KYAH "Merck Index; an Encyclopedia of Chemicals, Drugs, and Biologicals",
   11th ed., Rahway, NJ 07065, Merck & Co., Inc. 1989 Volume(issue)/page/year:
   11,899,1989

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >3478 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   EVHPAZ EHP, Environmental Health Perspectives.  (U.S. Government Printing
   Office, Supt of Documents, Washington, DC 20402)  No.1-    1972-
   Volume(issue)/page/year: 10,95,197

TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 49 mg/m3/7H
SEX/DURATION            : female 75 day(s) pre-mating
                          female 1-18 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight
   gain)
   Reproductive - Effects on Newborn - behavioral
REFERENCE :
   FEPRA7 Federation Proceedings, Federation of American Societies for
   Experimental Biology. (Bethesda, MD)  V.1-46, 1942-87.
   Volume(issue)/page/year: 39,623,1980

Precautionary statements
  • P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西,喝水或吸烟。
  • P301+P312
  • P304+P340

其他信息

  • 类别:氧化剂
  • 活性二氧化锰:γ晶型二氧化锰(γ-MnO2)因具有优良的去极化活性(即优良的放电性能)而被称作活性二氧化锰,其粉末衍射花样呈强烈衍射,主要应用于电池工业,是电池工业的优质原料,用于电池工业后,使锌锰电池的比容量有了很大的提高。它之所以具有优良的放电性能,除因为含有90%左右的MnO2和极少量杂质外,还因为它的晶型结构与天然二氧化锰不同,为γ型结构,具有很高的活性。例如含MnO2同样为90%左右的天然软锰矿(β-MnO2)和电解产物(γ-MnO2)分别制成电池后进行放电试验,后者的放电容量比前者要超出一倍左右。它的生产方法有:(1)化学法,主要有碳酸锰氧化焙烧法、氯化-氧化法、氯酸钠氧化法、稀硫
  • 用途五:参见化学二氧化锰。
  • 电解二氧化锰工艺流程:电解二氧化锰工艺分为硫酸锰溶液的制备、电解及成品处理三个主要部分,工艺流程如图所示。硫酸锰溶液制备包括浸出、除铁、中和、除重金属、粗滤、精滤及静置沉淀除镁钙等工序。所用原料为碳酸锰矿粉(126目、含Mn20-23%)、工业硫酸(含H2SO4>93%)、天然MnO2粉 (除铁用,含量30-35%)。精制硫酸锰溶液中含MnSO4165g/L-180g/L,Fe<0.001g/L、重金属<0.0001 g/L。浸出用废电解液并补充计算需要的 H2SO4量,在浸出槽中剧烈搅拌下加入定量的MnCO3粉使之反应,通入蒸汽加热保持95℃左右,当pH值为3时加入二氧化锰矿粉使溶液中之铁氧化水解,待pH=5时放料压滤除渣,所得滤液再用BaS除重金属,再压滤即得硫酸锰溶液。压滤机中残渣用水洗涤后弃渣,洗液再送入反应槽中稀释料浆。电解是用纯净的中性硫酸锰溶液加入H2SO4使呈微酸性MnSO4电解溶液.含 MnSO4130g/L-135g/L、H2SO430g/L-32g/L,送入电解槽升温并长期保持90℃-98℃,用石墨棒作阴阳极,电流密度50A/m2、槽电压2V-3V、电流强度3000A下电解,MnO2在阳极上沉淀,30天电解后即可吊出电极剥离得到MnO2成品。所得MnO2为半成品,经粉碎至200目,再送入漂洗槽中洗去大部分酸性物质,再用NaHCO3中和,并以NH4Cl为解凝剂,再经漂洗,使最后一次洗水pH=6-7,含NaHCO3<0.3g/L,压滤烘干(保持90℃-100℃),成品二氧化锰含水<3%。 张显鹏 主编.铁合金辞典.沈阳:辽宁科学技术出版社.1996.第103-104页。
  • 二氧化锰价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 10013318 二氧化锰;氧化锰(Ⅳ);
  • 方法二:硝酸锰法将软锰矿与煤粉混合,经还原焙烧使高价锰还原成一氧化锰,用硝酸及硫酸浸取,经过滤、净化,得硝酸锰溶液,再经浓缩、热分解得二氧化锰,最后经稀硝酸精制、硫酸活化处理、水洗、干燥,制得化学二氧化锰产品。其 MnO2+C→MnO+CO MnO2+CO→MnO+CO2 MnO+2HNO3→Mn(NO3)2+H2O Mn(NO3)2→MnO2+2NO2 碳酸锰法软锰矿细粉碎与煤粉混合,进行还原焙烧生成氧化亚锰,用硫酸浸取,所得硫酸锰溶液中和到Ph4~6,沉淀杂质过滤除渣,滤液加硫化钠净化,经压滤,加入碳酸氢铵及晶种生成碳酸锰沉淀,在空气中通水蒸气于大约450℃下焙烧热分解,生成二氧化锰,剩余的碳酸锰及低价氧化锰,经硫酸溶出,氯酸钠重质化,再经洗涤,烘干得化学二氧化锰。其 2MnO2+C→2MnO+CO2↑ MnO+H2SO4→MnSO4+H2O MnSO4+2NH4HCO3→MnCO3+2NH4HSO4 MnCO3+0.5O2→MnO2+CO2↑ MnCO3+H2SO4→MnSO4+H2O+CO2↑ 5MnSO4+2NaC1O3+4H2O→5MnO2+Na2SO4+4H2SO4+C12↑ 天然锰矿活化法将高质量的软锰矿在空气中加热到600~800℃,或在还原剂(如煤粉、天然气)存在下,加热到300℃进行还原焙烧,使二氧化锰还原生成三氧化二锰,还原产物再经热硫酸处理,歧化三氧化二锰得到高活性.Γ-MnO2和硫酸锰,酸浸后浆液经过滤、洗涤、干燥、制得活性二氧化锰。其 2MnO2+C→Mn2O3+CO Mn2O3+H2SO4→MnSO4+MnO2+H2O
  • color:gray
  • 渐溶于冷盐酸并放出氯气,不
  • 防护措施:氧化锰粉尘可引起人的锰尘肺。高价锰氧化物,不论侵入机体的途径,其毒性作用对大脑有损伤。其他参见金属锰。

系列性分类


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