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Poov tshuaj fluoroborate
Poov tshuaj fluoborate yog crystalline hmoov dawb. Me ntsis soluble hauv dej, ethanol thiab ether, tab sis insoluble hauv kev daws teeb meem alkaline. Qhov txheeb ze ceev (d20) yog 2.498. Melting point: 530℃ (rhuav tshem)
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Muaj cov ntaub
Tam sim no, Yousheng kuj tau nqis peev qhov tshiab ntxiv hauv kev txhim kho kev lag luam ntaub. Txhawm rau txhawm rau txhim kho cov khoom zoo, nws tau tsim kho tshiab hauv cov nplhaib kev sib tw thiab cov cuab yeej qhib kev sib tw qhib. Lub tuam txhab's ua cov khoom lag luam muaj ob peb series: tagnrho-paj rwb kev lag luam ntaub, tag nrho-polyester kev lag luam ntaub, polyester-paj rwb muaj cov ntaub, thiab lwm yam Cov khoom tseem ceeb yog feem ntau tsim nyog rau emery daim ntaub rov qab.
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Khoom cua cryolite
Cryolite yog crystalline hmoov dawb. Txawv me ntsis hauv cov dej, nrog qhov ntom ntawm 2.95-3.0, thiab qhov chaw yaj ntawm txog 1000 ° C. Nws yog qhov yooj yim kom nqus tau noo noo thiab tuaj yeem decomposed los ntawm cov kua qaub zoo heev xws li sulfuric acid thiab hydrochloric acid los ua cov sib txuas nrog aluminium thiab sodium ntsev.
