Hanyar gano Ca2+:
Kayan aiki da kayan aiki na gwaji: beakers; Cokali mai siffar mazugi; Funnel; Burette; Tanderu ta lantarki; Ethanol mai hana ruwa; Hydrochloric acid, maganin NH3-NH4Cl, alamar calcium, maganin 0.02mol/LEDTA na yau da kullun.
Matakan gwaji:
1. A auna daidai adadin samfurin taimakon sarrafa ACR (daidai yake da 0.0001g) sannan a sanya shi a cikin kwalba. A jiƙa shi da ethanol mai hana ruwa shiga, sannan a ƙara yawan sinadarin hydrochloric acid 1:1 sannan a dumama shi a kan murhun lantarki don ba da damar ions na calcium su yi aiki sosai tare da hydrochloric acid;
2. A wanke da ruwa sannan a tace da mazubi domin a sami ruwan da ke cikinsa mai tsabta;
3. A daidaita ƙimar pH zuwa sama da 12 ta amfani da maganin NH3-NH4Cl, a ƙara adadin da ya dace na alamar calcium, sannan a yi amfani da maganin 0.02mol/LEDTA. Ƙarshen shine lokacin da launin ya canza daga ja mai launin shunayya zuwa shuɗi mai tsabta;
4. Yi gwajin da babu komai a lokaci guda;
5. Lissafa C # a2+=0.02 $(V-V0) $0.04004M $%&&
V - Yawan maganin EDTA da aka yi amfani da shi lokacin gwada samfuran taimakon sarrafa ACR (mL).
V # - Yawan maganin da aka sha yayin gwajin babu komai
M - Auna nauyin samfurin taimakon sarrafa ACR (g).
Hanyar ƙonawa don auna abubuwa marasa tsari:
Kayan aikin gwaji: daidaiton nazari, murhun murfi.
Matakan gwaji: Ɗauki samfuran taimakon sarrafa ACR guda 0.5,1.0g (daidai zuwa 0.001g), sanya su a cikin tanda mai zafi mai zafi na 950 sannan a ƙone na tsawon awa 1, sannan a sanyaya a auna don ƙididdige sauran kayan da aka ƙone. Idan aka ƙara abubuwan da ba su da sinadarai a cikin samfurin kayan aikin sarrafa ACR, za a sami ƙarin ragowar.
Hanyar narkewar abinci:
1. Kayan gwaji da ma'aunin nazarin sinadaran; kwalbar volumetric 25mL; Trichloromethane.
Mataki na 2: Dangane da hanyar gwajin viscosity ta ACR, a auna 75mg na samfurin sannan a saka shi a cikin kwalbar volumetric mai girman 25mL. A ƙara sinadarin trichloromethane. Idan akwai turbidity ko haske da ake iya gani
Lokacin Saƙo: Mayu-27-2024
