Mokhoa oa ho lekola tlatsetso ea lintho tse inorganic i

Mokhoa oa ho lekola tlatsetso ea lintho tse inorganic ho lithuso tsa ho sebetsa tsa ACR:

Mokhoa oa ho lemoha oa Ca2+:

Lisebelisoa tsa liteko le li-reagents: beaker; Botlolo ea sebopeho sa khoune; Funnel; freette; Sebōpi sa motlakase; ethanol e se nang metsi; Hydrochloric acid, NH3-NH4Cl tharollo ea buffer, khalsiamo indicator, 0.02mol / L EDTA tharollo e tloaelehileng.

Mehato ea teko:

1. Lekanya ka nepo palo e itseng ea sampuli ea thuso ea ho sebetsa ea ACR (e nepahetseng ho 0.0001g) 'me ue behe ka beaker. E nosetse ka ethanol ea anhydrous, ebe u eketsa 1: 1 hydrochloric acid e feteletseng 'me ue chese ka sebōpi sa motlakase ho arabela ka ho feletseng li-ion tsa calcium ka hydrochloric acid;

2. Hlatsoa ka metsi 'me u sefa ka funele ho fumana mokelikeli o hlakileng;

3. Fetola boleng ba pH hore e be kholo ho feta 12 ka tharollo ea NH3-NH4Cl ea buffer, eketsa palo e loketseng ea khalsiamo indicator, le titrate ka tharollo e tloaelehileng ea 0.02mol / L EDTA. Qetello ke ha 'mala o fetoha ho tloha bopherese bo bofubelu ho ea ho boputsoa bo hloekileng;

4. Etsa liteko tse se nang letho ka nako e le 'ngoe;

5. Bala C # a2+=0.02 $(V-V0) $0.04004M $%&&

V - Bophahamo (mL) ea tharollo ea EDTA e sebelisoang ha ho lekoa lisampole tsa thuso ea ho sebetsa tsa ACR.

V # - Bophahamo ba tharollo e sebelisitsoeng nakong ea liteko tse se nang letho

M - Lekanya boima (g) ba sampole ea thuso ea ho sebetsa ea ACR.

Mokhoa oa ho chesoa oa ho lekanya lintho tse inorganic:

Lisebelisoa tsa liteko: ho leka-lekana ha tlhahlobo, sebōpi sa muffle.

Mehato ea liteko: Nka 0.5,1.0g ACR disampole tsa lithuso tsa ho sebetsa (tse nepahetseng ho isa ho 0.001g), li behe ka har'a sebopi se sa fetoheng sa mocheso oa 950 bakeng sa hora e le 'ngoe, u phomole, 'me u lekanye ho bala masalla a setseng. Haeba lintho tsa inorganic li eketsoa ho lisampole tsa lithuso tsa ACR, ho tla ba le masala a mangata.