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2 4-Dichloropyrimidine (CAS# 3934-20-1) Isithombe Esifakiwe
  • 2 4-Dichloropyrimidine (CAS# 3934-20-1) 1

2 4-Dichloropyrimidine (CAS# 3934-20-1)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C4H2Cl2N2
I-Molar Mass 148.98
Ukuminyana 1.6445 (isilinganiso esinzima)
I-Melting Point 57-61 °C (okhanyisiwe)
I-Boling Point 101 °C/23 mmHg (okhanyisiwe)
I-Flash Point 101°C/23mm
Ukuncibilika kwamanzi Incibilika emanzini (ingxenye), i-methanol, i-chloroform, ne-ethyl acetate.
Ukuncibilika I-Chloroform (Kancane), i-Ethyl Acetate (Kancane), i-Methanol (Kancane)
I-Vapor Presure 0.298mmHg ku-25°C
Ukubukeka Okuqinile okumhlophe
Umbala Okumhlophe ukuya kokuphuzi ukuya kobeige noma okumpunga
I-BRN 110911
pKa -2.84±0.20(Kubikezelwe)
Isimo Sesitoreji Gcina endaweni emnyama, evalwe endaweni eyomile, Emazingeni Okushisa Egumbi
Kuyazwela Kuyazwela Umswakama
I-Refractive Index 1.6300 (isilinganiso)
I-MDL I-MFCD00006061
Izakhiwo Zomzimba Nezamakhemikhali Iphuzu lokuncibilika lingu-57-62°C
iphoyinti lokubilisa 101°C (23 mmHg)

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi Xi - Irritant
Amakhodi Engozi 36/37/38 - Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36 – Gqoka izingubo ezifanele zokuzivikela.
I-S28A -
Ama-ID e-UN 1759
I-WGK Germany 3
I-TSCA Yebo
Ikhodi ye-HS 29335990
I-Hazard Class 8
Iqembu Lokupakisha III

 

Isingeniso

I-2,4-Dichloropyrimidine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-2,4-dichloropyrimidine:

 

Ikhwalithi:

- 2,4-Dichloropyrimidine iyikristalu engenambala enephunga elimnandi.

- Ine-solubility ephansi emanzini kanye nokuncibilika okuphezulu kuzincibilikisi zemvelo.

 

Sebenzisa:

- 2,4-Dichloropyrimidine isibulala-zinambuzane esisetshenziswa kakhulu ukulawula ukhula ezitshalweni.

 

Indlela:

- I-2,4-Dichloropyrimidine ingalungiswa ngokuphendula i-pyrimidine ngegesi ye-chlorine. Chaza ama-pyrimidines ku-ferrous chloride bese ushisa ezingeni lokushisa elifanele. Khona-ke, ukusabela kwe-chlorination kwenziwa ngokwethula igesi ye-chlorine ohlelweni lokuphendula. Umkhiqizo ohlosiwe utholakala ngezinyathelo zecrystallization kanye nokuhlanza.

 

Ulwazi Lokuphepha:

- 2,4-I-Dichloropyrimidine iyinto ecasulayo engase ibe nomthelela ocasulayo emehlweni, esikhumbeni nasohlelweni lokuphefumula.

- Uma usebenzisa i-2,4-dichloropyrimidine, gqoka amagilavu ​​okuzivikela afanelekile, izibuko, kanye nemaski ukuze uqinisekise ukungena komoya kahle.

- Ngokushesha ngemva kokuchayeka ku-2,4-dichloropyrimidine, geza indawo ethintekile ngamanzi amaningi futhi ufune usizo lwezokwelapha ngokushesha.

- Ngesikhathi sokugcina nokuphatha, ukuthintana nama-oxidants nama-asidi aqinile kufanele kugwenywe ukuze kugwenywe ukusabela okuyingozi.

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