Dawb Crystal Hmoov Cesium Chloride CAS 7647-17-8 Ntawm Muag

Cesium chloride yog cov tshuaj potassium channel blocker.Cesium chloride tiv thaiv kev txo qis hauv sodium ion thauj khoom tsim los ntawm alloxan.Cesium chloride tau induced arrhythmias, suav nrog pointy torsion ventricular tachycardia hauv cov qauv tsiaj.

1. Dissolve cesium carbonate hauv dej me me.Ntxiv hydrochloric acid nrog cov txheeb ze ntom ntawm 1.18 maj mam nyob rau hauv tas li nplawm thiab kub cov tshuaj tiv thaiv:

Cs2CO3 + 2 HCl → 2 CsCl + 2 H2O + CO2

Thaum pH = 3, ntxiv cesium hydroxide rau cov tshuaj tom qab boiling rau ib nrab ib teev kom coj pH mus rau nruab nrab.Lim yuav tsum tau lim, evaporated thiab concentrated rau nag los ntawm ib tug loj npaum li cas ntawm siv lead ua, txias rau chav tsev kub, niam cawv yuav tsum tau muab cais, ntxuav thiab qhuav ntawm 100 C, thiab cov khoom yuav tsum tiav.

2. Cesium chloride tuaj yeem tau los ntawm kev ua kom cov cesium carbonate nyob rau hauv hydrochloric acid thiab tom qab ntawd tsom rau cov tshuaj.Cesium chloride nrog purity ntawm 99.5% feem ntau yog tau thiab tuaj yeem siv ncaj qha.Cesium chloride uas tsis ntshiab txaus yuav ua kom zoo dua los ntawm cov hauv qab no.

Dissolve 15g Cesium chloride hauv 100mL dej tom qab cua sov.24.2g mercury chloride yog stoichiometric yaj hauv 25mL 4mol hydrochloric acid.Ntxiv cov tshuaj HgCl2 / HCl rau cov tshuaj saum toj no thaum nws kub, do thiab sib tov, thiab txias nws kom precipitate CsHgCl3 crystallization.Tom qab nqus thiab pom, sau crystallization, pov tseg niam cawv.Dissolve cov crystals hauv 120mL dej kub thiab txias dua.Vim li no, recrystallization yog rov ua dua 2-3 zaug, thiab cov hlau alkali tuaj yeem txo qis dua 0.01%.Thaum kawg, crystallization yog yaj nyob rau hauv dej kub, thiab H2S roj yog txhaj rau saturate cov tshuaj.Tom qab ntawd HgS nag lossis daus tshwm sim, HgS raug lim tawm, lim tau sau, thiab cov lim dej tau evaporated kom qhuav kom tau txais cov ntshiab cesium chloride.