Cesium carbonate 534-17-8 chaw tsim tshuaj paus nqi

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Cesium carbonate 534-17-8


  • Khoom npe:Cesium carbonate
  • CAS:534-17-8 : kuv
  • MF:CC2O 3
  • MW:325.82 ib
  • EINECS:208-591-9
  • Cim:neeg tsim khoom
  • Pob:1 kg / hnab los yog 25 kg / nruas
  • Product Detail

    Khoom cim npe

    Kev piav qhia

    Khoom npe: Cesium carbonate

    CAS: 534-17-8 Nr

    MF: CCs2O3

    PEB: 325.82 MW

    PIB: 208-591-9

    Qhov ceev: 4.072

    Daim ntawv: Hmoov / Granules

    Xim: Dawb

    Specification Gravity: 4.072

    Sensitive: Hygroscopic

    Hnub tim: 14, 2010

    PIB: 4546405

    Specification

    Khoom npe

    Cesium carbonate

    Qhov tshwm sim

    Dawb crystalline hmoov

    Purity

    99.9%

    Melting point

    610 ° C

    Boiling point

    333.6ºC ntawm 760 mmHg

    Flash point

    169.8°C dej

    Dej solubility

    261 g / 100 mL (20 ºC) yog '

    Daim ntawv thov

    1. Ntau yam khoom ntawm cesium carbonate nyob rau hauv cov organic synthesis los ntawm cov mos Lewis acidity ntawm cesium ion, uas ua rau nws soluble nyob rau hauv organic solvents xws li cawv, DMF thiab ether.

    2. Qhov zoo solubility nyob rau hauv cov kuab tshuaj organic enables cesium carbonate raws li ib tug zoo inorganic puag koom nyob rau hauv cov tshuaj tiv thaiv catalyzed los ntawm palladium reagents xws li Heck, Suzuki thiab Sonogashira cov tshuaj tiv thaiv. Piv txwv li, Suzuki cross-coupling cov tshuaj tiv thaiv tuaj yeem ua tiav cov txiaj ntsig ntawm 86% nrog kev txhawb nqa ntawm cesium carbonate, thaum cov txiaj ntsig ntawm tib cov tshuaj tiv thaiv nrog kev koom tes ntawm sodium carbonate lossis triethylamine tsuas yog 29% thiab 50%. Ib yam li ntawd, nyob rau hauv Heck cov tshuaj tiv thaiv ntawm methacrylate thiab chlorobenzene, cesium carbonate muaj qhov zoo ntawm lwm cov hauv paus inorganic, xws li potassium carbonate, sodium acetate, triethylamine, thiab potassium phosphate.

    3. Cesium carbonate kuj tseem muaj daim ntawv thov tseem ceeb hauv kev paub txog O-alkylation cov tshuaj tiv thaiv ntawm phenol tebchaw.

    4. Cov kev sim xav tias phenol O-alkylation cov tshuaj tiv thaiv nyob rau hauv cov kuab tshuaj uas tsis yog aqueous tshwm sim los ntawm cesium carbonate yuav muaj kev paub txog phenoloxy anions, yog li cov tshuaj tiv thaiv alkylation kuj tuaj yeem tshwm sim rau cov kev ua haujlwm siab theem nrab halogens uas muaj feem cuam tshuam rau kev tshem tawm cov tshuaj tiv thaiv. .

    5. Cesium carbonate kuj tseem muaj kev siv tseem ceeb hauv kev tsim cov khoom ntuj tsim. Piv txwv li, nyob rau hauv cov synthesis ntawm Lipogrammisin-A compound nyob rau hauv lub kauj ruam tseem ceeb ntawm lub nplhaib-kaw cov tshuaj tiv thaiv, kev siv cov cesium carbonate raws li ib tug inorganic puag yuav tau kaw-ntiv nplhaib cov khoom nrog high yields.

    6. Tsis tas li ntawd, vim yog qhov zoo solubility ntawm cesium carbonate hauv cov kuab tshuaj organic, nws kuj tseem muaj kev siv tseem ceeb hauv cov khoom siv txhawb nqa organic. Piv txwv li, peb cov tshuaj tiv thaiv ntawm aniline thiab cov khoom txhawb nqa halide yog induced nyob rau hauv ib tug carbon dioxide cua los ua ke carboxylate los yog carbamate tebchaw nrog high yield.

    7. Nyob rau hauv microwave hluav taws xob, cesium carbonate kuj tuaj yeem siv los ua lub hauv paus kom paub txog cov tshuaj tiv thaiv esterification ntawm benzoic acid thiab cov khoom txhawb nqa halogens.

    Kev them nyiaj

    1, T / T

    2, L / C

    3, Visa

    4, credit card

    5, Paypal ua

    6, Alibaba Trade Assurance

    7, Western union

    8, MoneyGram

    9 Tsis tas li ntawd, qee zaum peb kuj lees txais Bitcoin.

    cov nqe lus them nqi

    Cia

    low-temperature, ventilated thiab qhuav warehouse

    Kev ruaj ntseg

    ruaj khov. Cov ntaub ntawv tsis sib xws: muaj zog oxidants, muaj zog acids.


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