Maitiro ekuyedza kuwedzera kwezvinhu zvisingaite i

Maitiro ekuyedza kuwedzera kwe inorganic zvinhu mu ACR kugadzirisa aids:

Nzira yekuona yeCa2+:

Kuedza zviridzwa uye reagents: beaker; bhodhoro rakaumbwa nekoni; Funnel; freette; Choto chemagetsi; Anhydrous ethanol; Hydrochloric acid, NH3-NH4Cl buffer solution, calcium indicator, 0.02mol/L EDTA yakajairika mhinduro.

Matanho ekuedza:

1. Kunyatsoyera imwe chiyero che ACR processing aid sampuli (yakarurama kusvika 0.0001g) uye isa mubeaker. Nyoresa neanhydrous ethanol, wobva wawedzera kuwedzera 1: 1 hydrochloric acid uye kupisa pachoto chemagetsi kuti uite zvachose calcium ions nehydrochloric acid;

2. Shamba nemvura uye sefa kuburikidza nefunnel kuti uwane mvura yakachena;

3. Gadzirisa pH kukosha kuti ive yakakura kudarika 12 neNH3-NH4Cl buffer solution, wedzera huwandu hwakakodzera hwe calcium indicator, uye titrate ne 0.02mol / L EDTA standard solution. Mhedziso ndeye apo ruvara runoshanduka kubva kune yepepuru yakatsvuka kusvika kune yakachena yebhuruu;

4. Ita zviedzo zvisina chinhu panguva imwe chete;

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

V - Iyo vhoriyamu (mL) yeEDTA mhinduro inopedzwa paunenge uchiyedza ACR kugadzirisa rubatsiro sampuli.

V # - Vhoriyamu yemhinduro inopedzwa panguva yekuyedza isina chinhu

M - Weresa huremu (g) ​​weiyo ACR kugadzirisa rubatsiro sampuli.

Kupisa nzira yekuyera inorganic zvinhu:

Kuedza zviridzwa: analytical balance, muffle furnace.

Matanho ekuedza: Tora 0.5,1.0g ACR kugadzirisa aid samples (chaizvo kusvika 0.001g), zviise mu950 inogara tembiricha muffle muchoto kweawa imwe, tonhorera pasi, uye ureme kuverenga zvakasara zvekutsva. Kana inorganic zvinhu zvawedzerwa kune ACR kugadzirisa rubatsiro sampuli, pachave nekusara kwakawanda.