Cov khoom lag luam
Qhov sib xyaw ua ke rau cas 1193-21-1 yog 4,}}}} dichhloroprimididididididididididididididididididgid (molar mass 148.98 g / mol). Nws cov qauv tshuaj muaj cov tshuaj chlorine atoms at 4-}} txoj haujlwm ntawm lub nplhaib pyrimidine.
4, {6- Dichhloropyrimidididididididididididine zoo li dawb crystalline hmoov uas yuav tsaus ntuj nti-xim av thaum lub caij nyoog cia. Nws muaj lub ntsiab lus melting ntawm 66-70 kawm tiav, npau npau ntawm 176 degree ntawm 1 ATM, ntom ntawm 1.493 g / cm,,,,, index index index of of of of of 1. 1.630. Qhov no sib xyaw no yog insoluble hauv dej tab sis yooj yim soluble hauv cov kuab tshuaj organic xws li toluene thiab ethanol.
Cov ntaub ntawv yooj yim
| Khoom npe | 4,6-Dichloropyrimidine |
| Cas tsis muaj. | 1193-21-1 |
| Kev tshwm sim | Cov hmoov dawb |
| Kev coj dawb huv | 99% |
| Melting taw tes | 65-67 degree |
| Kub taw tes | 176 Qib |
| Ceev | 1.6445 |
| Chaw ntim khoom | Inert emosphere, 2-8 degree |
Siv / Npaj
Siv:
4, {6-} dichhloropyrimididididididididation (piv txwv li cov tshuaj tua kab mob sulfanomyrim
Kev npaj:
4,6-Dichloropyrimidine can be prepared by the following method:
Chlorination ntawm Pyrimidines: Pyrimidines tau hnov nrog cov tshuaj chlorine kom tau 4, {}} dichhloropyrimgines nyob rau hauv cov xwm txheej tsim nyog.
Nitrosation ntawm Pyrimidine: Nws tau npaj los ntawm kev rov qab muaj pyrimidine nrog sodium nitrite, nitrosating nws nyob rau hauv cov xwm txheej tsim nyog, thiab kev kho mob tom ntej.
Tuam txhab tau
Tam sim no peb cov khoom raug xa tawm mus rau ntau dua 30 lub teb chaws xws li Holland, Is Nrias teb, Australia muaj lub koob npe nrov hauv International Arena. Peb lub tuam txhab tau tsim kev nrawm thiab tam sim no tau dhau los ua tus neeg yuav khoom ib qho thiab cov muab kev pabcuam rau ntau tus neeg siv khoom thoob ntiaj teb. Ntsib ntxiv cov kev kawm thiab cov kev sib tw yav tom ntej, peb yuav ua kom muaj kev lag luam tshiab thiab pragmatic, thiab ua rau muaj kev siv zog.
Peb yuav ua haujlwm ua ke kom ua tiav txoj kev yeej-yeej.
Cov FAQ
Koj puas kam txais cov qauv txiav txim?
Peb yuav ua cov qauv ua ntej pawg ntau lawm, thiab tom qab coj mus piv txwv pom peb yuav pib pawg ntau lawm. Ua 100% kev soj ntsuam thaum lub sijhawm ntau lawm, tom qab ntawd ua kev soj ntsuam random ua ntej ntim.
Kuv tuaj yeem lees paub qhov zoo ntawm cov khoom ua ntej tso ib qho kev txiav txim?
Peb tuaj yeem xa koj cov qauv rau kev sim, lossis koj tuaj yeem xa peb cov khoom lag luam rau peb cov khoom lag luam thiab cov khoom lag luam, peb yuav tsim cov khoom raws li koj cov kev xav tau.
Dab tsi ntawm txoj kev them nyiaj koj puas kam txais?
Rau me me txiav txim, koj tuaj yeem them los ntawm T / T, Paypal lossis Western Union. Rau cov xaj loj, koj tuaj yeem them los ntawm T / T, L / C lossis hauv tus neeg.
Cim npe nrov: Kws Tshuaj Txhuam Cov Khoom Raw 4, 6- Dichhloroprimididididididididididididididididate Pw}}} Cov kws tsim khoom, cov chaw tsim khoom, Hoobkas
