Tertiary amine yog hais txog ib qho amine uas muaj pawg trivalent txuas rau peb pawg hydrocarbon hauv cov molecule. Tertiary amines muaj ntau yam kev siv, thiab tuaj yeem siv lo...
Oct 28, 2022
Hydrocarbylation ntawm Ammonia Cov tshuaj tiv thaiv ntawm ammonia thiab halogenated hydrocarbons tseem hu ua amination cov tshuaj tiv thaiv, uas belongs rau nucleophilic hloov c...
4-Toluenesulfonyl chloride yog ib qho organic compound nrog cov tshuaj formula C7H7SO2Cl. Nws yog cov hmoov dawb crystalline hmoov nrog cov ntxhiab tsw, insoluble hauv dej, thia...
Benzenesulfonyl chloride yog ib qho organic compound nrog cov tshuaj formula C6H5ClO2S, uas yog cov xim tsis muaj xim thiab pob tshab oily kua. Benzenesulfonyl chloride yog ib q...
Synthetic resin yog ib hom kev sib xyaw ua ke ntawm cov khoom siv hluavtaws polymer, uas yog ib hom ntawm cov resin uas muaj lossis ntau dua cov yam ntxwv ntawm cov khoom siv nt...
Oct 25, 2022
Polymethyl silicone resin feem ntau yog copolymer tsim los ntawm siloxane chain units xws li SiO3/2, CH3SiO3/2, (CH3)3SiO2/2, (CH)SiO1/2. Siv cov khoom siv raw nrog tsuas yog ob...
Opal yog ntuj hardened silica gel uas muaj 5-10 feem pua ya raws. Tsis zoo li feem ntau gemstones, opal yog amorphous, thiab qee cov qauv tsis ruaj khov amorphous hauv opal yu...
Oct 24, 2022
Amorphous silica yog hais txog cov silica uas muaj nyob rau hauv cov av li dehydrated silicic acid gel. Lawv cov qauv chav nyob txuas nrog 304 tetrahedra, tab sis lawv qhov kev ...
Silicon tetrafluoride yog ib qho inorganic compound nrog cov tshuaj formula SiF4. Nws cov qauv molecular yog Si atoms tsim σ bonds nrog sp3 hybrid orbitals. Cov duab molecular y...
Silicon yog cov khoom siv tshuaj, cov cim tshuaj yog Si, yav tas los hu ua silicon. Tus naj npawb atomic yog 14, tus txheeb ze atomic loj yog 28.0855, muaj ob lub allotropes nta...
Kev nthuav dav yog thaum cov khoom hauv ib qho khoom txav nrawm dua thiab yog li siv qhov chaw ntxiv thaum cov khoom raug cua sov, qhov tshwm sim hu ua expansion. Khoom, kua, th...
Airgel hais txog cov khoom siv nano-scale ntxeem tau tsim los ntawm sol-gel txoj kev, siv ib txoj kev ziab kom qhuav los hloov cov kua theem hauv cov gel nrog roj.
