izindaba

I-1,3-Dichlorobenzene iwuketshezi olungenambala olunephunga elimnandi. Ayincibiliki emanzini, ayincibiliki otshwaleni ne-ether. Inobuthi emzimbeni womuntu, ecasulayo emehlweni nasesikhumbeni. Iyakwazi ukuvutha futhi ingabhekana ne-chlorination, i-nitrification, i-sulfonation, kanye nokusabela kwe-hydrolysis. Isabela ngobudlova ne-aluminium futhi isetshenziswa ku-organic synthesis.

Igama lesiNgisi: 1,3-Dichlorobenzene

Isibizo sesiNgisi: 1,3-Dichloro Benzene; m-Dichloro Benzene; m-Dichlorobenzene

I-MDL: MFCD00000573

Inombolo ye-CAS: 541-73-1

Ifomula yemolekyuli: C6H4Cl2

Isisindo se-molecule: 147.002

Idatha ephathekayo:

1. Izici: uketshezi olungenambala olunephunga elimnandi.
2. Iphuzu elincibilikayo (℃): -24.8
3. Iphuzu elibilayo (℃): 173
4. Ukuminyana okuhlobene (amanzi = 1): 1.29
5. Ukuminyana komhwamuko okuhlobene (umoya=1): 5.08
6. Umfutho womhwamuko ogcwele (kPa): 0.13 (12.1℃)
7. Ukushisa komlilo (kJ/mol): -2952.9
8. Izinga lokushisa elibalulekile (℃): 415.3
9. Ingcindezi ebucayi (MPa): 4.86
10. I-Octanol/i-partition coefficient yamanzi: 3.53
11. Iphoyinti elikhanyayo (℃): 72
12. Izinga lokushisa lomlilo (℃): 647
13. Umkhawulo wokuqhuma okuphezulu (%): 7.8
14. Umkhawulo wokuqhuma ophansi (%): 1.8
15. Ukuncibilika: akuncibiliki emanzini, kuncibilika ku-ethanol ne-ether, futhi kuncibilika kalula ku-acetone.
16. I-Viscosity (mPa·s, 23.3ºC): 1.0450
17. Indawo yokuthungela (ºC): 648
18. Ukushisa kokuhwamuka (KJ/mol, bp): 38.64
19. Ukushisa kokwakheka (KJ/mol, 25ºC, uketshezi): 20.47
20. Ukushisa komlilo (KJ/mol, 25ºC, uketshezi): 2957.72
21. Umthamo wokushisa othize (KJ/(kg·K), 0ºC, uketshezi): 1.13
22. Ukunyibilika (%, amanzi, 20ºC): 0.0111
23. Ukuminyana okuhlobene (25℃, 4℃): 1.2828
24. Inkomba yokushisa evamile ye-refractive (n25): 1.5434
25. Ipharamitha yokuncibilika (J·cm-3) 0.5: 19.574
26. Indawo yase-Van der Waals (cm2·mol-1): 8.220×109
27. Van der Waals ivolumu (cm3 · mol-1): 87.300
28. Izinga lesigaba soketshezi lifuna ukushisa (enthalpy) (kJ·mol-1): -20.7
29. Isigaba soketshezi ukuncibilika okushisayo okujwayelekile (J·mol-1·K-1): 170.9
30. Izinga lesigaba segesi lifuna ukushisa (enthalpy) (kJ·mol-1): 25.7
31. I-entropy evamile yesigaba segesi (J·mol-1·K-1): 343.64
32. Amandla ajwayelekile amahhala okwakheka esigabeni segesi (kJ·mol-1): 78.0
33. Ukuncibilika okushisayo okujwayelekile kwesigaba segesi (J·mol-1·K-1): 113.90

Indlela yokugcina:
Izindlela zokuphepha zokugcina, gcina endaweni epholile, nengena umoya. Gcina kude nomlilo nemithombo yokushisa. Gcina isitsha sivalwe ngokuqinile. Kufanele igcinwe ngokuhlukana nama-oxidants, i-aluminium, namakhemikhali adliwayo, futhi igweme ukugcinwa okuxubile. Ifakwe izinhlobonhlobo ezifanele kanye nenani lamathuluzi omlilo. Indawo yokugcina impahla kufanele ifakwe izinto zokwelashwa eziphuthumayo ezivuzayo kanye nezinto ezifanele zokugcina.

xazulula isixazululo:
Izindlela zokulungiselela zimi kanje. Ukusebenzisa i-chlorobenzene njengento eluhlaza ukuze kuqhutshekwe ne-chlorination, kutholakala i-p-dichlorobenzene, i-o-dichlorobenzene kanye ne-m-dichlorobenzene. Indlela yokuhlukanisa evamile isebenzisa i-dichlorobenzene exubile ukuze kuphuzwe uketshezi oluqhubekayo. I-para- kanye ne-meta-dichlorobenzene i-distilled kusukela phezulu kombhoshongo, i-p-dichlorobenzene inethwa ukuqandisa nokucwebezela, bese ugologo ongumama luyalungiswa ukuze kutholwe i-meta-dichlorobenzene. I-o-dichlorobenzene i-flash distilled kumbhoshongo we-flash ukuze ithole i-o-dichlorobenzene. Njengamanje, i-dichlorobenzene exubile isebenzisa indlela yokukhanga nokuhlukanisa, isebenzisa isisefo samangqamuzana njenge-adsorbent, futhi isigaba segesi esixutshwe i-dichlorobenzene singena embhoshongweni we-adsorption, ongakhetha ngokukhetha i-p-dichlorobenzene, futhi uketshezi olusele luyi-meta ne-ortho dichlorobenzene. Ukulungiswa kabusha ukuze kutholwe i-m-dichlorobenzene ne-o-dichlorobenzene. Izinga lokushisa le-adsorption liyi-180-200 ° C, futhi ingcindezi ye-adsorption ingcindezi evamile.

1. Indlela ye-Meta-phenylenediamine diazonium: i-meta-phenylenediamine yenziwa i-diazotized phambi kwe-sodium nitrite ne-sulfuric acid, izinga lokushisa le-diazotization lingu-0~5℃, futhi uketshezi lwe-diazonium lufakwa nge-hydrolyzed phambi kwe-cupurous chloride ukuze kukhiqizwe i-Dichlorobenzene intercalation.

2. Indlela ye-Meta-chloroaniline: Kusetshenziswa i-meta-chloroaniline njengento eluhlaza, i-diazotization yenziwa phambi kwe-sodium nitrite ne-hydrochloric acid, futhi uketshezi lwe-diazonium lufakwa nge-hydrolyzed phambi kwe-cuprous chloride ukuze kukhiqizwe i-meta-dichlorobenzene.

Phakathi kwezindlela zokulungiselela ezimbalwa ezingenhla, indlela efaneleke kakhulu yokwenza izimboni kanye nezindleko eziphansi indlela yokuhlukanisa i-adsorption ye-dichlorobenzene exubile. Sekuvele kunezindawo zokukhiqiza eChina ezizokhiqizwa.

Inhloso eyinhloko:
1. Isetshenziswa ku-organic synthesis. Ukusabela kwe-Friedel-Crafts phakathi kwe-m-dichlorobenzene ne-chloroacetyl chloride kukhiqiza i-2,4,ω-trichloroacetophenone, esetshenziswa njengendawo emaphakathi yomuthi we-antifungal obanzi we-miconazole. Ukusabela kwe-chlorination kwenziwa phambi kwe-ferric chloride noma i-aluminium mercury, ikakhulukazi ikhiqiza i-1,2,4-trichlorobenzene. Lapho kukhona i-catalyst, i-hydrolyzed ku-550-850°C ukuze ikhiqize i-m-chlorophenol ne-resorcinol. Isebenzisa i-copper oxide njenge-catalyst, isabela nge-ammonia egxilile ku-150-200°C ngaphansi kwengcindezi yokwenza i-m-phenylenediamine.
2. Isetshenziswa ekwenzeni udayi, i-organic synthesis intermediates kanye nezincibilikisi.


Isikhathi sokuthumela: Jan-04-2021