Heptane yog ib qho alkane ncaj nraim uas muaj cov tshuaj lom neeg C₇H₁₆, uas tsim cov qauv tshuaj ruaj khov los ntawm kev sib txuas ib leeg txuas xya lub carbon atoms thiab kaum rau lub hydrogen atoms.
Hais txog cov khoom siv lub cev, heptane yog cov kua tsis muaj xim thiab pob tshab nrog ib qho tsw tshwj xeeb me ntsis. Nws lub ntsiab lus kub yog kwv yees li 98.4 degrees Celsius, lub ntsiab lus yaj yog -90.6 degrees Celsius, thiab nws qhov ceev tsawg dua li dej, kwv yees li 0.684 grams ib cubic centimeter ntawm 20 degrees Celsius. Heptane tsis yaj hauv dej tab sis yooj yim yaj hauv cov kuab tshuaj organic xws li ethanol thiab ether.
Ua ib yam khoom siv tshuaj lom neeg tseem ceeb, heptane muaj ntau yam kev siv hauv chav kuaj thiab kev lag luam. Nws feem ntau siv ua cov organic solvent los yaj cov tshuaj xws li roj, roj hmab, thiab cov resins; hauv kev tshuaj xyuas tshuaj lom neeg, heptane tuaj yeem siv ua cov khoom txheem los ntsuas cov cuab yeej thiab txheeb xyuas qhov tseeb ntawm cov txheej txheem tshuaj xyuas.
Yuav tsum nco ntsoov tias heptane yog cov khoom siv uas yooj yim hlawv, thiab nws cov pa roj tuaj yeem ua rau muaj kev sib xyaw nrog huab cua, uas yooj yim heev rau hlawv thiab tawg thaum raug rau cov nplaim taws qhib thiab cua sov siab. Yog li ntawd, thaum lub sijhawm khaws cia thiab siv, nws yog ib qho tsim nyog kom nyob deb ntawm cov chaw hluav taws thiab cov chaw cua sov, tswj kom muaj cua zoo, thiab ua cov kev ntsuas tiv thaiv hluav taws thiab tawg kom ntseeg tau tias muaj kev nyab xeeb.
Lub sijhawm tshaj tawm: Lub Xya Hli-22-2025
