Ignition poob rau Silica

Yuav ua li cas mus sim ignition poob rau silica / SiO2 ?

Thaum lub sij hawm kub nyhiab ntawm cov khoom siv silica , cov khoom tsis muaj dej muaj xws li carbon dioxide, dej ua ke thiab ib qho me me ntawm leej faj, tshuaj fluorine, chlorine thiab organic teeb meem. Qhov poob ntawm cov yam ntxwv ntawm lub cev tsis muaj feem xyuam nrog lub sijhawm kub kub. Peb yuav tsum xav txog qhov kev hloov ntawm qhov zoo ntawm cov qauv no li cov txiaj ntsig ntawm algebraic ntawm txhua yam tshuaj lom neeg cov tshuaj tiv thaiv kom zoo lossis nce. Thaum xam xyuas tag nrho cov feem pua, yog qhov tshwm sim ntawm kev txo qhov hlawv raug muab suav rau hauv tus account, qhov kev hloov ntawm txhua qhov kev tivthaiv tom qab qhov tiv thaiv yuav raug hloov dua siab tshiab.

Ignition poob rau Silicon Dioxide :

○ Khoom siv: Platinum crucible, kub kub rauv, tshuaj ntsuam xyuas qhov ntsuas

○ Txoj Kev

          ① ob chav ntsuas ntsuas

          ② Nyhav 2g ntawm cov qauv, suav ua m0, muab tso rau hauv qab platinum crucible, thiab luj m1

          ③ kub ntawm 1000 ± 25 ° C 2 h.

          • Tshem tawm ntawm lub hau thiab tshem nws mus rau ib lub lim dej kom txias, thiab hnyav m2

○ Calculation

Ignition poob x = m1-m2 / m0

M0 yog qhov hnyav ntawm qhov hnoos qeev

M1 yog qhov nyhav ntawm qhov hnyav thiab qauv ua ntej cua sov

M2 yog qhov hnyav ntawm lub khob dej thiab cov qauv tom qab cua sov

SiO2 cov ntsiab lus = 1-X