Amfani da Oxalic Acid a Bugawa da Rini a Yadi

Amfani da Oxalic Acid
A masana'antar sinadarai, ana amfani da sinadarin oxalic acid wajen kera pentaerythritol, cobalt oxalate, nickel oxalate, basic fuchsin, cikakken kayan aikin reagent don nazarin ƙarfe da ƙasa, kayan aikin sinadarai, da sauran kayayyaki.
A cikin tsarin rini mai sauri, yana aiki azaman wakili mai haɓaka launi da daidaita shi.
Yana aiki a matsayin mai yin bleaching ga kayayyakin bambaro da alkama (yana amfani da kaddarorin rage kitse na oxalic acid) da kuma a matsayin mai cire tsatsa (oxalic acid yana amsawa da ƙarfe don samar da oxalate na ƙarfe mai narkewa, wanda ake wanke shi da ruwa cikin sauƙi, don haka yana cire tabon ƙarfe daga yadudduka).
Amfani da Oxalic Acid a Bugawa da Rini a Yadi
(1) Cire Tabon Tsatsa Daga Yadi
Idan ƙarfe ya fallasa ga iskar oxygen da danshi a cikin iska, yana samar da wani hadadden abu mai suna tsatsa. Duk da cewa ainihin abun da ke ciki ya bambanta dangane da yanayin samuwarsa, duk tsatsa yana ɗauke da ions na ƙarfe uku. Tabon tsatsa akan yadin auduga yana samar da lahani na dindindin wanda dole ne a cire shi, kuma oxalic acid magani ne mai tasiri don kawar da su. Ka'idar ita ce oxalic acid yana amsawa tare da ions na ƙarfe uku (Fe³⁺) don samar da ions na anionic mai narkewa, [Fe(C₂O₄)₃]³⁻, wanda yake narkewa cikin sauƙi a cikin ruwa. Amfanin da aka saba amfani da shi shine 20 g/L na oxalic acid tare da kimanin 30 mL/L na 98% acetic acid.
Muhimmin Bayani: Oxalic acid na iya lalata zare. Bayan an yi magani, dole ne a wanke masakun auduga sosai da ruwa mai tsafta don cire duk wani sinadarin oxalic acid da ya rage. Idan ba a wanke shi da kyau ba, sinadarin oxalic acid zai taru yayin bushewa, wanda hakan zai haifar da mummunan lalacewar zare da kuma haifar da ramuka.
Oxalic acid kuma zai iya cire tabon tsatsa daga yadin nailan, wanda hakan zai haifar da rawaya.
(2) Kawar da Iskar Nitrous Acid Yayin Ci gaba da Rini na Ingrain
Lokacin amfani da hanyar sodium nitrite don bugawa kai tsaye tare da rini na ingrain tare da rini na naphthol, ana samar da nitrous acid yayin haɓakar sulfuric acid. Wannan yana sa gishirin sodium naphthol AS akan masana'anta ya samar da ruwan sama mai launin ja-launin ruwan kasa, wanda ke haifar da launin fari mara daidaituwa. Don kawar da nitrous acid, wani lokacin ana ƙara 1-2 g/L na oxalic acid a cikin maganin haɓakar acid na sulfuric a matsayin wakili mai ragewa (maye gurbin formic acid, urea, ko sulfur). Oxalic acid yana rage nitrous acid zuwa iskar nitrogen, yana hana HNO₂ amsawa da AS don samar da mahaɗan launin ruwan kasa.