Ceium carbonate 534-17-8 farashin yi

Takaitaccen Bayani:

Cesium carbonate 534-17-8


  • Sunan samfur:Cesium carbonate
  • CAS:534-17-8
  • MF:Farashin CC2O3
  • MW:325.82
  • EINECS:208-591-9
  • Hali:masana'anta
  • Kunshin:1 kg/bag ko 25kg/drum
  • Cikakken Bayani

    Tags samfurin

    Bayani

    Sunan samfur: Cesium carbonate

    Saukewa: 534-17-8

    Saukewa: CC2O3

    MW: 325.82

    Saukewa: 208-591-9

    Yawan girma: 4.072

    Form: Foda/Granules

    Launi: Fari

    Musamman nauyi: 4.072

    Mai hankali: Hygroscopic

    Ranar: 14,2010

    Saukewa: 4546405

    Ƙayyadaddun bayanai

    Sunan samfur

    Cesium carbonate

    Bayyanar

    Farar crystalline foda

    Tsafta

    99.9%

    Wurin narkewa

    610°C

    Wurin tafasa

    333.6ºC a 760 mmHg

    Ma'anar walƙiya

    169.8ºC

    Ruwa mai narkewa

    261 g/100 ml (20ºC)

    Aikace-aikace

    1. Yawancin kaddarorin na cesium carbonate a cikin ƙwayoyin halitta sun fito ne daga taushin Lewis acidity na cesium ion, wanda ya sa ya zama mai narkewa a cikin kaushi na halitta kamar barasa, DMF da ether.

    2. Kyakkyawan solubility a cikin abubuwan kaushi na halitta yana ba da damar cesium carbonate azaman tushen inorganic mai tasiri don shiga cikin halayen sinadarai waɗanda palladium reagents ke haifar da su kamar halayen Heck, Suzuki da Sonogashira. Alal misali, halayen haɗin gwiwar Suzuki na iya samun yawan amfanin ƙasa na 86% tare da goyon bayan cesium carbonate, yayin da yawan amfanin da aka samu tare da haɗin sodium carbonate ko triethylamine shine kawai 29% da 50%. Hakazalika, a cikin halayen Heck na methacrylate da chlorobenzene, cesium carbonate yana da fa'ida a bayyane akan sauran tushen inorganic, kamar potassium carbonate, sodium acetate, triethylamine, da potassium phosphate.

    3. Cesium carbonate kuma yana da aikace-aikacen da ke da mahimmanci a cikin fahimtar yanayin O-alkylation na mahadi phenol.

    4. Gwaje-gwajen sun yi la'akari da cewa phenol O-alkylation dauki a cikin abubuwan da ba na ruwa ba da aka haifar da cesium carbonate mai yiwuwa sun sami phenoloxy anions, don haka yanayin alkylation na iya faruwa ga halogens na biyu na ayyuka masu girma waɗanda ke da wuyar kawar da halayen. .

    5. Cesium carbonate kuma yana da amfani mai mahimmanci a cikin haɗin samfuran halitta. Alal misali, a cikin kira na Lipogrammistin-A fili a cikin maɓalli na mataki na rufewar zobe, yin amfani da cesium carbonate a matsayin tushen inorganic zai iya samun samfuran rufaffiyar zobe tare da yawan amfanin ƙasa.

    6. Bugu da ƙari, saboda mai kyau solubility na ceium carbonate a cikin kwayoyin kaushi, shi ma yana da muhimmanci amfani a cikin m-goyon bayan kwayoyin halayen. Misali, nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan iri uku na aniline da ingantaccen halide mai goyan bayan an jawo su a cikin yanayin carbon dioxide don haɗa sinadarin carboxylate ko carbamate tare da yawan amfanin ƙasa.

    7. A karkashin microwave radiation, cesium carbonate kuma za a iya amfani da matsayin tushe don gane esterification dauki na benzoic acid da m-goyon halogens.

    Biya

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    9, Bayan haka, wani lokacin ma muna karɓar Bitcoin.

    sharuddan biyan kuɗi

    Adana

    low-zazzabi, ventilated da bushe sito

    Kwanciyar hankali

    barga. Abubuwan da ba su dace ba: oxidants mai ƙarfi, acid mai ƙarfi.


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