Benzene | 71-43-2/174973-66-1/54682-86-9 ib
Product Physical Data:
| Khoom npe | Benzene |
| Cov khoom | Cov kua tsis muaj xim pob tshab nrog cov ntxhiab tsw muaj zog |
| Melting Point (° C) | 5.5 |
| Boiling Point(° C) | 80.1 ib |
| Relative density (Dej = 1) | 0.88 ib |
| Relative vapor density (air = 1) | 2.77 ib |
| Saturated vapor siab (kPa) | 9.95 ib |
| Thaum tshav kub kub combustion (kJ / mol) | -3264.4 ib |
| Qhov kub thiab txias (°C) | 289.5 ib |
| Critical siab (MPa) | 4.92 ib |
| Octanol / dej faib coefficient | 2.15 |
| Flash point (°C) | -11 |
| Ignition kub (°C) | 560 |
| Upper tawg txwv (%) | 8.0 ib |
| Tsawg tawg txwv (%) | 1.2 |
| Solubility | Insoluble hauv dej, soluble nyob rau hauv feem ntau cov organic solvents xws li ethanol, ether, acetone, thiab lwm yam. |
Khoom Properties:
1.Benzene yog ib qho tseem ceeb tshaj plaws ntawm cov organic raw khoom thiab yog ib tug neeg sawv cev ntawm aromatic hydrocarbons. Nws muaj ib tug ruaj khov rau-tus tswv cuab lub nplhaib.
2.Cov tshuaj tiv thaiv tseem ceeb yog qhov sib ntxiv, hloov pauv thiab lub nplhaib qhib cov tshuaj tiv thaiv. Raws li kev ua ntawm cov concentrated sulfuric acid thiab nitric acid, nws yog ib qho yooj yim los tsim nitrobenzene los ntawm kev hloov cov tshuaj tiv thaiv. React nrog concentrated sulfuric acid los yog fuming sulfuric acid los tsim benzenesulfonic acid. Nrog cov hlau halides xws li ferric chloride ua catalyst, halogenation cov tshuaj tiv thaiv tshwm sim ntawm qhov kub thiab txias los tsim halogenated benzene. Nrog txhuas trichloride ua catalyst, alkylation cov tshuaj tiv thaiv nrog olefins thiab halogenated hydrocarbons los tsim alkylbenzene; acylation cov tshuaj tiv thaiv nrog acid anhydride thiab acyl chloride los tsim acylbenzene. Nyob rau hauv lub xub ntiag ntawm vanadium oxide catalyst, benzene yog oxidised los ntawm oxygen los yog cua los tsim cov txiv neej anhydride. Benzene rhuab mus rau 700 ° C tawg tshwm sim, tsim cov pa roj carbon, hydrogen thiab me me ntawm methane thiab ethylene thiab lwm yam. Siv platinum thiab nickel ua catalysts, hydrogenation cov tshuaj tiv thaiv yog nqa tawm los tsim cyclohexane. Nrog zinc chloride ua catalyst, chloromethylation cov tshuaj tiv thaiv nrog formaldehyde thiab hydrogen chloride los tsim benzyl chloride. Tab sis lub nplhaib benzene ruaj khov dua, piv txwv li, nrog nitric acid, potassium permanganate, dichromate thiab lwm yam oxidants tsis hnov tsw.
3.It muaj cov cuab yeej siab refractive thiab muaj zog aromatic tsw, flammable thiab lom. Miscible nrog ethanol, ether, acetone, carbon tetrachloride, carbon disulfide thiab acetic acid, me ntsis soluble hauv dej. Tsis-corrosive rau hlau, tab sis qib qis ntawm benzene uas muaj sulfur impurities ntawm tooj liab thiab qee cov hlau muaj qhov pom tseeb corrosive. Cov kua benzene muaj cov nyhuv degreasing, tuaj yeem nqus tau los ntawm daim tawv nqaij thiab lom, yog li yuav tsum tsis txhob sib cuag nrog daim tawv nqaij.
4.Vapour thiab huab cua los tsim cov khoom tawg, qhov tawg txwv ntawm 1.5% -8.0% (ntim).
5.Stability: ruaj khov
6. Cov tshuaj txwv tsis pub:Soxidants, acids, halogens
7.Polymerisation txaus ntshai:Tsis yog polymerisation
Khoom siv:
Cov khoom siv tshuaj lom neeg yooj yim, siv los ua cov kuab tshuaj thiab hluavtaws benzene derivatives, txuj lom, dyes, plastics, pharmaceuticals, explosives, roj hmab, thiab lwm yam.
Cov ntawv khaws cia khoom:
1. Khaws rau hauv qhov chaw txias, cua txias.
2. Khaws kom deb ntawm qhov hluav taws kub thiab cua sov.
3.Qhov kub cia yuav tsum tsis pub tshaj 37 ° C.
4. Khaws lub thawv kaw.
5.Nws yuav tsum tau muab cais tawm ntawm cov neeg ua haujlwm oxidizing, thiab yuav tsum tsis txhob sib xyaw.
6.Siv cov khoom tawg-pov thawj teeb pom kev zoo thiab cov chaw ua pa.
7. Txwv tsis pub siv cov cuab yeej siv tshuab thiab cov cuab yeej uas yooj yim los tsim cov pob zeb.
8.Qhov chaw cia khoom yuav tsum tau nruab nrog cov khoom siv kho mob thaum muaj xwm ceev thiab cov khoom siv vaj tse tsim nyog.
