Feem ntau siv "txoj kev qhuav" cov kuab tshuaj feem ntau muaj cov khoom nram qab no: (1) Hydrochloric acid (HCl) nrog ib qho concentration ntawm 31% (360 g / L, Boehme℃saum 19) lossis siab dua yog siv ncaj qha los ua cov kuab tshuaj; (2) Zinc chloride (ZnCl₂) aqueous tov yog siv los ua cov kuab tshuaj; (3) Ib qho ammonium chloride (NH₄Cl) aqueous tov yog siv los ua cov kuab tshuaj; (4) Ob chav ntsev aqueous tov ntawm ammonium chloride thiab zinc chloride yog siv los ua cov kuab tshuaj.
Lub ntsiab hnyav siv nyob rau hauv kub -dip galvanized steel yeeb nkab Hoobkas nyob rau hauv Tuam Tshoj yog cov ntsev tov ntawm ammonium chloride thiab zinc chloride.
50. Dab tsi yog qhov tseem ceeb ntawm cov txheej txheem qhuav qhuav?
Jan 06, 2026
Xa kev nug
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