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cesium,iodide

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Origem: China

Cas No: 7789-17-5

Especificação: 99%Min

Quantidade de ordem min: 1 /kg

Capacidade de fornecimento: 100 mt/month

Tempo de espera: 7 dias para OEM, 3 dias para produtos prontos

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  • Especificação de produtos
  • Descrição do produto
  • Quick Details

    CAS No.:
    7789-17-5
    Other Names:
    Cesium iodide
    MF:
    CsI
    EINECS No.:
    232-145-2
    Place of Origin:
    Shanghai, China
    Grade Standard:
    Agriculture Grade, Electron Grade, Food Grade, Industrial Grade, Medicine Grade, Reagent Grade
    Purity:
    99.9%
    Appearance:
    White Powder
    Application:
    Medicine
    Brand Name:
    Terppon
    Model Number:
    TP522
    color:
    White

    Packaging&Delivery

    Packaging Details
    in 25kg bag
    Port
    Shanghai
    Lead Time:
    1 week
  • Property

    CAS No.: 7789-17-5 Formula: CsI Molecular Weight: 259.81000

    Description

    Caesium iodide (chemical formula CsI) is the ionic compound of caesium and iodine. It is often used as the input phosphor of an x-ray image intensifier tube found in fluoroscopy equipment. Caesium iodide photocathodes are highly efficient at extreme ultraviolet wavelengths.
    An important application of caesium iodide crystals, which are scintillators, is electromagnetic calorimetry in experimental particle physics. Pure CsI is a fast and dense scintillating material with relatively high light yield. It shows two main emission components: one in the near ultraviolet region at the wavelength of 310 nm and one at 460nm. The drawbacks of CsI are a high temperature gradient and a slight hygroscopicity.
    Caesium iodide is used as a beamsplitter in Fourier transform infrared (FTIR) spectrometers. It has a wider transmission range than the more common potassium bromide beamsplitters, extending its working range into the far infrared. However, optical-quality CsI crystals are very soft and a hard to cleave or polish. They should also be coated (typically with germanium) and stored in a desiccator, to minimize interaction with atmospheric water vapors.
    Caesium iodide atomic chains can be grown inside double-wall carbon nanotubes. Accurate measurements reveal that in such chains I atoms appear brighter than Cs atoms despite having a smaller mass. This difference was explained by the charge difference between Cs atoms (positive), inner nanotube walls (negative) and I atoms (negative). As a result, Cs atoms are attracted to the walls and vibrate more strongly than I atoms, which are pushed toward the nanotube axis.

    Basic Info

    Chemical Name cesium,iodide
    Synonyms

    Tricesium triiodide;
    Cesium iodide (Cs2I2);
    Cesium iodide (CsI);
    CESIUM IODIDE;
    Cesium iodide (Cs3I3);
    Dicesium diiodide;
    EINECS 232-145-2;
    Cesium monoiodide;
    Caesium iodide;

    CAS No. 7789-17-5
    Molecular Formula CsI
    Molecular Weight 259.81000
    PSA 0.00000
    LogP -2.99600

    Properties

    Appearance & Physical State white crystalline powder
    Density 4.51
    Boiling Point 1280ºC
    Melting Point 626ºC
    Flash Point 1280ºC
    Refractive Index 1.7876
    Water Solubility 74 g/100 mL (20 ºC)
    Stability Stable. Deliquescent.
    Storage Condition Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

    Safety Info

    RTECS FL0350000
    Safety Statements S22-S36/37-S45
    HS Code 2827600000
    WGK Germany 2
    Risk Statements R36/37/38; R42/43
    Hazard Codes Xn
    Signal Word Warning
    Symbol GHS07
    Caution Statement P261; P280; P305 + P351 + P338
    Hazard Declaration H315; H317; H319; H335

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