Study of the Gold Extraction Using Tetra N-Butyl Ammonium Chloride-Chloroform

Yuli Puspito Rini(1), Agus Kuncaka(2*), Ngatidjo Hadipranoto(3)

(1) Faculty of Education, Lambung Mangkurat University, Banjarmasin
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara PO BOX BLS 21 Yogyakarta 55281
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara PO BOX BLS 21 Yogyakarta 55281
(*) Corresponding Author


The existence of the AuCl4- ion in the solution as the function of pH before performing the extraction of gold in the system of tetra N-butylammonium chloride (TBACI) -chloroform has been studied. The experimental data showed that AuCl4- ion was hydrolyzed at pH 5-10 and, an amorf dark-brown precipitate was appeared at pH 11-14. Amount of gold in the solution at pH 14 before extraction was around 70%. Study of the extraction has been carried out by investigating the influence of pH and TBACI concentration on the extraction efficiency. The experimental result indicated that TBACI was very efficient extractant for the extraction of gold from aqueous halide with the efficiency higher than 99%. The extraction of Gold in the TBACI-chloroform was effective at pH 0-4 with minimum concentration of TBACI 10-3 M, and the calculated Kex (extraction constant) was 5.07x10-4.


extraction; extraction efficiency; extraction constant

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[1] Anil, K.D.E., Schripad, M., Khopkar, S.M., dan Chalmers, R.S., 1970, Solvent Extraction of Metals, Van Nostrand Reinhold Company, London.

[2] Brown, T.L., LeMay, H.E., dan Bursten, B.E., 1997, Chemistry The Central Science, Edisi ketujuh, Prentice Hall International, Inc., New York.

[3] Cotton, F.A., dan Wilkinson, G., 1980, Advanced Inorganic Chemistry, Edisi keempat, John Wiley & Sons, New York, 966-980.

[4] Lee, J.D., 1991, Concise Inorganic Chemistry, Edisi keempat, Chapman & Hall, New York.

[5] Parker, S.P., 1983, McGraw-Hill Encyclopedia of Chemistry, Mc Graw Hill Company, New York, 425-428.

[6] Pecsoc, R.L., Shields, L.D., Cairns, T., dan McWilliam, I.G., 1976, Modem Methods of Chemical Analysis, Edisi kedua, John Wiley & Sons, New York.

[7] Saptohardjo, A., dan Nurhadi, A., 1990, Konsep Dasar Kimia Analitik (terjemahan dari Khopkar, S.M., 1985, Basic Concepts of Analytical Chemictry), UI Press, Jakarta.

[8] Welcher, F.J., 1964, Organic Analytical Reagnets, Edisi pertama, Vol. 3, D. Va Nostrand Company, Inc., New York.


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Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

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