Video: Yuav ua li cas tshwm sim thaum boric acid yog rhuab nrog ethanol thiab lub Vapor yog burnt?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Orthobic acid reacts nrog ethyl cawv nyob rau hauv lub xub ntiag ntawm tsim conc H2YOG4 tsim triethylborate. Cov vapors ntawm triethyl borate thaum ignited kub hnyiab nrog ib tug ntsuab edged nplaim taws. Qhov no tsim lub hauv paus rau kev kuaj borates thiab boric acid hauv kev soj ntsuam zoo.
Kuj paub, yuav ua li cas tshwm sim thaum nws rhuab nrog ethanol thiab Vapor yog burnt?
Thaum twg ethanol yog hlawv hauv huab cua, nws reacts nrog oxygen thiab tsim cov pa roj carbon dioxide, dej vapors, thiab kub.
Puas yog boric acid soluble hauv ethanol? Hmoov boric acid muaj yaj qeeb qeeb hauv dej ntau dua li cov khoom siv crystalline, tab sis nrog maj mam ua kom sov, nws yuav yaj los muab kev daws teeb meem. Boric acid kuj tau tshaj tawm tias soluble hauv cawv (1 feem hauv 16) thiab hauv 85% glycerol tov (1 feem ntawm 4).
Tsis tas li ntawd paub, dab tsi tshwm sim thaum boric acid yog rhuab?
Thaum twg boric acid yog rhuab Nws hloov mus rau metabolic kua qaub uas nyob rau ntxiv cua sov muab boron trioxide. Teb: Ntawm muaj zog cua sov , ua first Boric acid (H3BO3) tawg mus rau hauv Metaboric kua qaub (HBO2) thiab dej (H2O). Nyob rau ntxiv cua sov , Metaboric kua qaub tawg mus rau hauv Boric oxide (B2O3) thiab dej.
Thaum Orthoboric acid yog rhuab rau liab tshav kub, residue yog?
Ntawm cua sov ortho-boric acid daim ntawv meta-boric kua qaub thiab mus ntxiv cua kub kom liab kub , daim ntawv boric oxide anhdride. D. Thaum orthoboric acid yog rhuab saum toj no 17 0 o 170 ^ o 170 o C, nws dehydrates thiab tsim metaboric kua qaub.
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