Semimetal Compounds

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    Chromium boride CrB

    Other name:Chromium diboride
    CAS no. : 12006-80-3
    EINECS no. : 234-488-3
    Molecular formula: C2H9Br
    Molecular weight: 112.9969
    Melting point: 1300 ℃
    Density: 7.63 g/cm3

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    Cobalt silicide CoSi2

    Particle size:325mesh
    Chemical composition:
    Co:51%  Si:48.5%
    Other impurity:0.5%

    Chemical formula CoSi2.  Molecular weight: 115.11.  Dark brown trapezius crystal.  Melting point 1277 ℃, Relative density 5.3.  It can be oxidized at 1200℃ to erode its surface.  Reacts with fluorine at low temperature;  It reacts with chlorine at 300 degrees Celsius.

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    Antimony telluride

    Other name: Diantimony tritelluride, antimony(iii) telluride
    CAS no. : 1327-50-0
    Formula: Sb2Te3
    Molecular weight: 626.32
    Density: 6.5 g/cm3
    Melting point: 620 ℃

     

    Purity: 99.99%
    Particle size: 200 mesh
    Appearance: grey powder
    Forbidden band width: 0.23Ev
    Resistivity: 3 * 10-6 Ω m.
    Solubility: insoluble in water

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    Nanometer Boron nitride

    English alias: Boron Nitride Rod; nitriloborane

    CAS no. : 10043-11-5

    EINECS no. : 233-136-6

    Formula: BN

    Molecular weight: 24.8177

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    Antimony pentoxide

    Other name: Diantimony pentoxide, Antimonic anhydride; 1,3-dioxodistiboxane 1,3-dioxide; antimonic acid

    CAS no. : 1314-60-9

    Molecular formula: Sb2O5

    Molecular weight: 323.50

    EINECS no. : 215-237-7

    Relative density (water =1) : 3.78

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    Chromium silicide

    Other name: chromium disilicide

    CAS no. : 12018-9-6

    EINECS no. : 235-726-9

    Molecular formula: H2CrSi2

    Molecular weight: 110.183

    Melting point: 1490 ℃

    Density: 5.5 g/cm3

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    Nano boron carbide

    CAS no. : 12069-32-8
    EINECS no. : 235-111-5
    Molecular formula: B4C
    Molecular weight: 55.25
    Density: 2.51
    Melting point: 2350 ℃
    Boiling point: 3500 ℃

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    Antimony oxide nano powder

    Other name: Antimony trioxide, diantimony trioxide, Antimony(III) oxide
    CAS no. : 1309-64-4; 1327-33-9
    EINECS no. : 215-175-0; 215-474-6
    Molecular formula: Sb2O3
    Molecular weight: 291.517
    Melting point: 656℃ (subl.)
    Water solubility: Slightly soluble

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    Antimony trifluoride

    Other name: Antimony (III) fluoride
    CAS no. : 7783-56-4
    EINECS no. : 232-009-2
    Molecular formula: F3Sb
    Molecular weight: 178.7552
    Molecular formula: SbF3
    Molecular weight: 178.75
    Density: 4.379
    Melting point: 292 DHS C
    Sublimation point :376 ° C
    Boiling point: 376 DHS C
    Water solubility :385 G/100 ML (20 ° C)

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