Nws yog ib qho khoom hauv qab chav sovthiab nws cov ntsiab lus yaj yog ntawm 22 ° C mus rau 24 ° C. Yog li ntawd, nws tau xaus lus tias diphenylmethane yog kua ntawm chav tsev kub.
Koj paub li cas yog cov khoom muaj zog ntawm chav tsev kub?
Yog tias qhov chaw melting ib txwm ntawm cov khoom qis dua hauv chav tsev, cov khoom yog kua hauv chav tsev kub. Benzene melts ntawm 6 ° C thiab boils ntawm 80 ° C; nws yog kua nyob rau hauv chav tsev kub. Yog tias ob qho tib si lub ntsiab lus melting thiab qhov kub kub ib txwm yog siab dua chav tsev kub, cov khoom yog ib qho khoom.
Diphenylmethane ua li cas?
Nws yog npaj los ntawm the Friedel-Crafts alkylation ntawm benzyl chloride nrog benzene nyob rau hauv lub xub ntiag ntawm ib tug Lewis acid xws li txhuas chloride: C 6 H5CH2Cl + C6H6→ (C6H5)2CH2 + HCl.
Puas yog cov tshuaj lauric acid thiab stearic acid yog cov khoom los yog kua hauv chav sov?
Qhov no tau pom hauv koob lauric (C12), palmitic (C16), stearic (C18). Chav tsev kub yog 25oC, Lauric acid uas yaj ntawm 44o tseem yog ib qho khoom, thaum arachidonic acid tau ntev txij li yaj ntawm -50 o, yog li nws yog kua ntawm chav sov
Diphenylmethane siv rau dab tsi?
Diphenylmethane yog siv dav hauv synthesis ntawm luminogens rau aggregation-induced emission (AIE). Nws yog siv nyob rau hauv kev npaj ntawm ib tug polymerization pib, diphenylmethyl potassium (DPMK).