Video: Thaum boric acid h3bo3 yog rhuab ntawm 140 C nws tsim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Saum toj no 140 ° C , boric acid los yog lwm yam daim ntawv ntawm metaboric kua qaub hloov mus rau cubic metaboric kua qaub.
Ntawm no, yuav ua li cas yog tias boric acid yog rhuab?
Thaum 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.
Kuj Paub, thaum Orthoboric acid yog rhuab rau liab kub cov 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.
Tib neeg kuj nug, dab tsi yog cov mis ntawm boric acid?
H3BO 3
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Los ntawm neutralization , acidic thiab yooj yim khoom ntawm ob qho tib si kua qaub thiab lub hauv paus raug puas tsuaj. Txiv qaub thiab baking soda yog ob qho khoom pheej yig thiab yooj yim muaj tshuaj uas neutralize cov acids.
Pom zoo:
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