Heptane/CAS: 142-82-5
Kev Piav Qhia Luv:
Lub Npe Khoom: Heptane
CAS: 142-82-5
MF: C7H16
MW: 100.2
QAUV:
Kev piav qhia:
n-Heptane yog cov kua ntshiab uas yooj yim hlawv thiab volatile nrog ib qho tsw ntxhiab zoo li roj av. Theodor threshold yog 40-547 ppm; kuj tau tshaj tawm ntawm 230 ppm. Molecular weight = 100.23; Specific gravity (H2O:l) = 0.68; Boiling point = 98.39C; Freezing Melting point = - 90.6 ℃; Vapor pressure = 40 mmHg ntawm 25 ℃; Flash point =Ib4℃; Kub pib hluav taws = 204℃.285℃. Kev txwv tawg: LEL = 1.1%; UEL = 6.7%. Kev txheeb xyuas kev phom sij (raws li NFPA-704 M Rating System): Kev Noj Qab Haus Huv 1, Kev Kub Hnyiab 3, Kev Ua Haujlwm 0. Yuav luag tsis yaj hauv dej; kev yaj = 0.0003%.
cov lus qhia tshwj xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov kub yaj | -91 °C (lit.) |
| Kub taw tes | 98 ° C (lit.) |
| Qhov Ceev | 0.684 g/mL ntawm 20 °C |
| Qhov ceev ntawm cov pa dej | 3.5 (piv rau huab cua) |
| Vapor siab | 40 hli Hg (20 °C) |
| Refractive index | n20/Hnub 1.397 |
| Fp | 30 °F |
| Stemp cia khoom | Khaws cia ntawm +5°C txog +30°C. |
| Daim Ntawv | Kua |
| Lub zog nqus tshwj xeeb | 0.684 (20/4 ℃) |
Kev Siv
Haum rau HPLC, spectrophotometry, kev sim ib puag ncig
Raws li tus qauv hauv kev sim lub zog ntawm cov cav roj av.
Heptane yog ib qho tshuaj yaj thiab tshuaj uas txo cov viscosity.
Ntim thiab Xa Khoom
137KG/Nruas los yog raws li cov neeg siv khoom xav tau.
Nws tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
