广东快乐十分开奖结果

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Mn

Manganese广东快乐十分开奖结果 is a chemical element that has the symbol Mn and atomic number 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses. Manganese ions are variously colored, and are used industrially as pigments and as oxidation chemicals. Manganese (II) ions function as cofactors for a number of enzymes; the element is thus a required trace mineral for all known living organisms.

Manganese is a gray-white metal resembling iron. It is a hard metal and is very brittle, fusible with difficulty, but easily oxidized. Manganese metal and its common ions are paramagnetic. This means that, while manganese metal does not form a permanent magnet, it does exhibit strong magnetic properties in the presence of an external magnetic field.

TECHNICAL DATA
SymbolMnIonic radius(6-coordinate)/pm III58(ls) 64.5(hs)
Atomic number25Ionic radius(6-coordinate)/pm II67
No. of naturally occurring isotopes1Density (25°C)/gcm-37.43
Atomic weight54.938Melting point / °C1244
Electronic configuration[Ar]3d54s2Boiling point / °C2060
Metal radius(12-coordinate)/pm127ΔHfus/kJmol-1-13.4
Ionic radius(6-coordinate)/pm VII46ΔHvap/kJmol-1221 (+/-8)
Ionic radius(4-coordinate)/pm VI25.5ΔHf(monoatomic gas)/kJmol-1281 (+/-6)
Ionic radius(4-coordinate)/pm V33Electrical resistivity185
Ionic radius(6-coordinate)/pm IV53Electronegativity χ1.5
EVAPORATION TECHNIQUES
Temperature (oC) @Vap. PressureTechniquesRemarks
10-8 Torr10-6 Torr10-4 TorrElectron BeamCrucibleCoilBoat
507 Sublimes572 Sublimes647 SublimesGoodAl2O3TungstenTungsten, Molybdenum & Tantalum



Mn
Precision Alloys
AlloyDin SymbolElectrical Resistivity at 20°C     Conductivity  Density   
                 μΩ/Cm         S/W           g/cm3
CuMnNi25-10NEXTMCM25901.118
CuMn12NiNEXMANGAN®432.338.4
CuNi30MnNEXTMCN30M402.508.8
CuNi23MnNEXTMCN23M303.338.9
CuMn7SnNEXZERAN®293.458.5
CuMn3NEXTMCM312.58.008.8

Thermo-electric Alloys
Model No.Symbol Melting Point                 Temp ToleranceTemp Range
°C                            °C 
KNNi, Mn, Al, Si1400±2.2°C or ±0.75% (t90)0 to 1260Tolerance Standard
ENCu, Ni, Mn1280±1.7°C or ±0.5% (t90)0 to 870
JPFe, Mn, Si, Al1496±2.2°C or ±0.75% (t90)0 to 760
JNCu, Ni, Mn1280±2.2°C or ±0.75% (t90)0 to 760
TNCu, Ni, Mn1280±1.0°C or ±0.75% (t90)0 to 370
KNXNi, Mn, Al, Si1400±2.2°C0 to 200
ENXCu, Ni, Mn1280±1.7°C-25 to +200
JPXFe, Mn, Si, Al1496±2.2°C0 to 200
JNXCu, Ni, Mn1280±2.2°C-25 to +200
TNXCu, Ni, Mn1280±0.83°C-25 to +100
BPCCu, Mn1050±3.7°C0 to 100
KPCAFe, Mn, Si, Al1496±100μV(±2.5°C)0 to 150Tolerance Standard
KNCACu, Ni, Mn, Feapprox. 1280±100μV(±2.5°C)0 to 150
KNCBCu, Ni, Mn1280±100μV(±2.5°C)0 to 100
NNCCu, Ni, Mn, Fe1280±100μV(±2.5°C)0 to 150
SNCACu, Ni, Mn1080±130μV(±2.5°C)0 to 100
SNCBCu, Ni, Mn1080±60μV(±5.0°C)0 to 200

Sputtering Targets
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.Kg/cc
Manganese_Mn Mn257.87.2

Evaporation Materials
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.Kg/cc
Mn ( pieces ) Mn257.87.2


Below is the periodic table of chemical elements.The elements in red are the ones Nexteck's product contain. Click them, you will come to the details.

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