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Djufri Mustafa
Laboratorium Elektrokimia Jurusan Kimia FMIPA UNAND
Chemistry

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TRANSPOR IODIN MELALUI MEMBRAN KLOROFORM DENGAN NATRIUM TIOSULFAT SEBAGAI FASA PENERIMA DALAM TEKNIK MEMBRAN CAIR FASA RUAH -, Refinel; Mustafa, Djufri; Fitriani, Reni
Jurnal Riset Kimia Vol 8, No 2 (2015): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v8i2.232

Abstract

Iodine transport throught bulk liquid membrane technique consist of 10 mL I2/KI 4x10-3 N solution as donor phase, 20 mL Na2S2O3 0.02 N solution as reagent striping in acceptor phase, and 30 mL chloroform as membrane phase. Technical operation use magnetic stirring at 100 rpm. Concentration of iodine in donor phase and acceptor phase determined by Spectrophotometer UV-Vis λ max at 567 nm. The results concluded that the optimum conditions of iodine transport 4 x 10-3 N with pH 7 in donor phase, comparison I2:KI in donor phase (1:5), and a long stirring is 120 minutes. The bulk liquid membrane technique with Na2S2O3 as reagent striping in acceptor phase is potential for iodine transport from donor phase to acceptor phase with 86.71 % of iodine transport. Fluxs values (transport rate) generated by using chloroform membrane of 1.8872 x 10-7 L/cm2.menit-1 at a maximum transport time of 120 minutes.
OPTIMASI TRANSPOR Cu(II) DENGAN APDC SEBAGAI ZAT PEMBAWA MELALUI TEKNIK MEMBRAN CAIR FASA RUAH Imelda, -; Kahar, Zaharasmi; Simarmata, Maria; Mustafa, Djufri
Jurnal Riset Kimia Vol 5, No 2 (2012): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v5i2.212

Abstract

The transport of Cu(II) with Ammonium Pyrrolidine Dithiocarbamate(APDC) as carrier through bulk liquid membrane had been researched. The measurement was performed to source phase and feed phase by using Atomic Absorption Spectrophotometer toward λmaks 324.7 nm. The result of the research showed the optimum condition to separate 20 ppm of Cu(II) was at pH 4 of source phase, concentration of APDC was 1 : 30, stirring time was 2 hours, and the stirring velocity was 300 rpm with the percentage of Cu(II) transport to feed phase was 97,06% and percentage of remains Cu(II) was 0%.
Co-Authors - Imelda, - Fitriani, Reni Maria Simarmata, Maria Refinel - Zaharasmi Kahar