Oxalic acid waa walax dabiici ah oo leh qaacidada kiimikada H₂C₂O₄.Waa dheef-shiid kiimikaad ee noolaha.Waa asiidh daciif ah oo dibasic ah.Waxay si ballaaran ugu baahsan tahay dhirta, xayawaanka iyo fangaska, waxayna ka ciyaartaa hawlo kala duwan oo ku saabsan noolaha kala duwan.Anhydride asiidhkeedu waa kaarboon trioxide.Muuqaalka oxalic acid waa flake monoclinic aan midab lahayn ama crystal prismatic ama budo cad, aan ur lahayn, dhadhan dhanaan, si fudud ugu milmi biyaha laakiin aan ku milmin dareerayaasha organic sida ether.Miisaanka kelli ee oxalic acid waa 90.0349.
Isticmaalka oxalic acid: wakiilka kakan, wakiilka waji-xidhka, wakiilka soo daadanaya, wakiilka yaraynta.
1, sida wakiilka bleaching
Oxalic acid waxaa inta badan loo isticmaalaa sida wakiilka dhimaya iyo wakiilka bleaching, oo loo isticmaalo soo saarista dawooyinka sida antibiyootiga iyo borneol, sida dareere loogu talagalay soo saarista biraha dhifka ah, wakiilka dheeha yareeya, iyo sida maqaarka maqaarka.
Oxalic acid waxa kale oo loo isticmaalaa soo saarida cobalt-molybdenum-aluminium kiciya, nadiifinta biraha iyo marmarka, iyo bleaching ee dunta.
2. Sida wakiilka dhimaya
Warshadaha isku-dhafka dabiiciga ah, waxaa inta badan loo isticmaalaa in lagu soo saaro alaabada kiimikada sida hydroquinone, pentaerythritol, cobalt oxalate, nickel oxalate, iyo gallic acid.
Warshadaha caagga ah waxaa loo isticmaalaa soo saarista chloride polyvinyl, aminoplastics, balaastigga urea-formaldehyde, xaashida lacquer, iwm.
Warshadaha dheeha waxaa loo isticmaalaa soo saarista cagaarka magenta ku salaysan milixda, iwm.
Warshadaha daabacaadda iyo midabaynta, waxay bedeli kartaa acetic acid waxaana loo isticmaali karaa sidii gargaar soo koraya midab iyo wakiilka dheeha midabka.
Warshadaha dawooyinka waxaa loo isticmaalaa soo saarista chlortetracycline, oxytetracycline, tetracycline, streptomycin, iyo ephedrine.
Intaa waxaa dheer, oxalic acid ayaa sidoo kale loo isticmaali karaa in lagu soo saaro alaabooyin kala duwan sida oxalate, oxalate iyo oxalamide, kuwaas oo ay ka mid yihiin diethyl oxalate, sodium oxalate iyo calcium oxalate ayaa ah kuwa ugu wax soo saarka badan.
3. Sida mooryaan
Antimony oxalate waxa loo isticmaali karaa mordant ahaan, iyo ferric ammonium oxalate waa wakiilka daabacaadda blueprints.
4 Shaqada saarista miridhku
Oxalic acid waxa loo isticmaali karaa in meesha laga saaro miridhku: ka iibso dhalo oxalic acid dukaanka lagu iibiyo reagents kiimikaad, ka qaado, xal biyo diiran, mari wasakhda miridhku oo masax.(Fiiro gaar ah: Ka taxaddar markaad isticmaalayso, oxalic acid aad bay u daxalaysaa birta aan lahayn. Marka la isticmaalayo . Ka dib marka maqaarku taabto oxalic acid, waa in lagu dhaqaa biyo waqtigeeda.)
Kaydinta oxalic acid
1. Ku kaydi meel qalalan oo qabow.Qoyaanka u adkaysta, biyuhu-ilaalinta, kiriimka qorraxda.Heerkulka kaydinta waa inuusan dhaafin 40 ℃.
2. Ka fogow oxides iyo walxaha alkaline.Lagu soo buuxiyay bac tolan oo polypropylene ah oo lagu dahaadhay bac.
Waqtiga boostada: Agoosto-11-2022