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Iibinta Kulul iyo Cesium Carbonate CAS 534-17-8 Tayada Sare leh oo leh Qiimo Wanaagsan
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Tayada Marka hore
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Qiimaha tartanka
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Khadka Wax-soo-saarka heerka koowaad
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Asal ahaan Warshada
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Adeegyada gaarka ah
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Faahfaahin (%)
sifooyinka jirka iyo kiimikaad
Muuqaalka iyo dabeecadda: budada crystalline cad
Cufnaanta: 4.072
Barta dhalaalka: 610 ° C
Barta karkarinta: 333.6 C at 760 mmHg
Fiiri: DHS 169.8 C
Biyaha ku milmay: 261 g/100 mL (20 C)
Xasilooni: Xasilooni.Walxaha la mamnuucay: oksidat xoog leh, acid xoog leh.
Xaaladaha kaydinta: bakhaarku waa hawo iyo engegay heerkul hooseeya
| Cesium carbonate waa nooc ka mid ah iskudhis aan organic ahayn, kaas oo cad cad heerkulka qolka iyo cadaadiska.Si sahal ah ayay ugu milmi karaan biyaha oo si degdeg ah ayay hygroscopic marka la geliyo hawada.Xalka Cesium carbonate waa alkaline xooggan, wuxuuna la falgali karaa aashitada si uu u soo saaro cusbada cesium-ka iyo biyaha, oo uu sii daayo kaarboon laba ogsaydh.Cesium carbonate waa in la xidhaa, la qalajiyaa oo lagu kaydiyaa si ka gooni ah asiidhka. |
Hawlaha iyo Codsiyada
Guryo badan oo cesium carbonate ah oo ku jira isku-dhafka organic waxay ka soo jeedaan jilicsanaanta Lewis ee jilicsan ee cesium ion, taas oo ka dhigaysa inay ku milmaan dareerayaasha organic sida khamriga, DMF iyo ether.Ku milmayn wanaagsan ee dareerayaasha organic waxay awood u siinaysaa cesium carbonate inay ka qayb qaadato falcelinta kiimikaad ee ay kicisay reagents palladium sida saldhig aan dabiici ahayn oo wax ku ool ah, sida falcelinta Heck, Suzuki iyo Sonogashira.Tusaale ahaan, falcelinta isku dhafka Suzuki ee cesium carbonate waxay awood u yeelatay inay hesho 86% wax soo saar, halka falcelinta isku midka ah ee sodium carbonate ama triethylamine ay ahayd kaliya 29% iyo 50%.Sidoo kale, falcelinta Heck ee methacrylate iyo chlorobenzene, cesium carbonate marka la barbar dhigo saldhigyada kale ee aan dabiiciga ahayn, sida potassium carbonate, sodium acetate, triethylamine, potassium phosphate, ayaa muujiyay faa'iido aad u muuqata.Cesium carbonate waxay sidoo kale leedahay codsiyo muhiim ah oo ku saabsan o-alkylation ee xeryahooda phenol.Waxaa la qiyaasayaa in falcelinta phenol O-alkylation ee cesium carbonate aan-aqueous dareeraha ah ay u badan tahay inay la kulmaan anion phenoxyethylene, sidaas darteed falcelinta alkylation waxay sidoo kale u dhici kartaa halogenates sare oo leh waxqabad sare iyo falcelin fudud oo baabi'in ah.Cesium carbonate sidoo kale waxay leedahay codsiyo muhiim ah oo ku saabsan isku dhafka alaabta dabiiciga ah.Tusaale ahaan, isku-darka Lipogrammistin-ka kooban ee tallaabo muhiim ah oo falcelin-celin-loop ah, cesium carbonate sida saldhigga aan noolaha ahayn waxaa loo isticmaali karaa in lagu helo alaabooyin xiran oo leh dhalooyin sare.Intaa waxaa dheer, cesium carbonate waxay leedahay codsiyo muhiim ah oo ku jira falcelinta organic ee adag ee la taageeray sababtoo ah milanka wanaagsan ee dareerayaasha organic.Xeryahooda Carboxylate ama karbamate waxaa lagu soo saari karaa wax-soo-saar sare iyada oo la keenayo fal-celin saddex-qaybood ah oo aniline ah oo leh halogen adag oo taageeray jawiga kaarboon dioxide.Marka la eego shucaaca microwave-ka, cesium carbonate sidoo kale waxaa loo isticmaali karaa saldhig si loo xaqiijiyo falcelinta esterification ee u dhexeeya benzoic acid iyo halogenates taageero adag.
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FAQs
S: Ma waxaad tahay shirkad ganacsi ama soo saaraha?
J: Waxaan nahay warshad.
S: Waa intee wakhtiga dhalmadaada?
J: Guud ahaan waa 5-10 maalmood haddii alaabtu kayd tahay.ama waa 15-20 maalmood haddii alaabtu aysan ku jirin kaydka, waa sida waafaqsan
tiro.
S: Ma bixisaa muunado?ma bilaash baa mise waa dheeraad ?
J: Haa, waxaanu ku bixin karnaa muunada lacag la'aan laakiin ma bixino kharashka xamuulka.
S: Waa maxay shuruudaha lacag bixinta?
A: Bixinta <= 1000USD, 100% ka hor.Lacag bixinta> = 1000USD, 30% T / T ka hor, dheelitirka ka hor inta aan la rarin.
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