Cov khoom tso saib
Xwm
Colorless volatile kua. Insoluble hauv dej, soluble hauv ethanol, soluble hauv ether, chloroform, ketone thiab lwm yam organic solvents.
Siv
Feem ntau yog siv los ua cov kuab tshuaj, xws li propylene polymerization hnyav, roj hmab thiab xim hnyav, xim xim thinner. Siv rau extraction ntawm soybean, nplej bran, cottonseed thiab lwm yam edible roj thiab txuj lom. Thiab ib tug siab octane roj.
Peb muaj ntau lub Hoobkas zoo nrog kev koom tes sib sib zog nqus, uas tuaj yeem muab koj cov khoom zoo thiab cov nqi sib tw. Thiab peb tseem tuaj yeem muab cov luv nqi rau kev yuav khoom ntau.Thiab peb koom tes nrog ntau lub tuam txhab xa khoom xa tuaj, tuaj yeem xa cov khoom lag luam kom nyab xeeb thiab ntseeg nkaws rau koj txhais tes. Lub sij hawm xa tuaj yog li 3-20 hnub tom qab tau txais kev pom zoo ntawm kev them nyiaj.
Yam khoom | Cov qauv | Cov txiaj ntsig | Txoj Kev Xeem |
Qhov ceev (20ºC) (g / cm3) | 660---680 | 674 | ASTM D 4052 Cov Lus Qhia Tshwj Xeeb |
Qhov tshwm sim | Ntshiab | Ntshiab | ASTM D 4176 Cov khoom lag luam |
Bromine Index, mg/100 g | ≤ 50 | ND | ASTM D 2710 Cov Lus Qhia |
Saybolt Xim | +30 | 30 | ASTM D156 |
Nonvolatile Matter, mg / 100ml | ≤1 | 0.37 | ASTM D 1353 Cov Lus Qhia Tshwj Xeeb |
Aromatic, ppm | ≤10 | 1 | GC |
Benzene, ppm | ≤10 | 1 | GC |
dej, ppm | ≤100 | 11.4 | ASTM D 6304 Cov Lus Qhia Tshwj Xeeb |
Sulfur, ppm | ≤1 | ND | ASTM D 3120 Cov Lus Qhia |
Cyclohexane,% (m / m) | ≤1 | 0.24 | GC |
N-hexane,% (m / m) | ≥60 | 61.47 | GC |
2-methylpentane,% | - | 12.43 | GC |
3-methylpentane,% | - | 8.28 | GC |
Methyl-c-pentane,% | - | 16.60 | GC |
Distillation IBP, ºC Distillation DP, ºC |
≥64 ≤70 |
66.7 68.8 |
ASTM D 1078 Cov |
Feem ntau ntawm n-Hexane siv hauv kev lag luam yog tov nrog cov tshuaj zoo sib xws hu ua cov kuab tshuaj. Kev siv loj rau cov kuab tshuaj uas muaj n-Hexane yog rho tawm cov roj zaub los ntawm cov qoob loo xws li taum pauv. Cov kuab tshuaj no kuj tseem siv los ua cov tshuaj ntxuav hauv kev luam ntawv, textile, rooj tog, thiab khau ua kev lag luam. Qee yam ntawm cov nplaum tshwj xeeb siv hauv cov vov tsev thiab khau thiab tawv kev lag luam kuj muaj n-Hexane. Ob peb cov khoom siv muaj n-Hexane, xws li roj av, cov nplaum kom qhuav sai siv rau ntau yam kev nyiam, thiab roj hmab cement.
Cov khoom qeb