CD Skripsi

Pemisahan Emas Pada Pc Mainboard Komputer: Pengaruh Rasio Sampel : Hno3 Dan Jenis Presipitan

---

Gold (Au) has been used widely in the electronics and telecommunications industries. In the Printed Circuit (PC Mainboard, the former metal there are approximately 80-1000 ppm Au. In this study Au has been separated from PC Mainboard with treatment variation ratio of the amount of samples and HNO3 (1: 3; 1: 6; and 1: 9 w/v) and the type of precipitants (NaHSO3 and H2C2O4). Gold content was determined by Atomic Absorption Spectrophotometry. For 5 grams PC mainboard sample with a size of 1-10 mm was leaching with HNO3 at T=70°C for 1 hour, the precipitate formed is separated from the filtrate. Then, the precipitate obtained was leaching with aqua regia at T=70°C for 30 minutes, the precipitate dissolved and further it diluted with aqua DM until it is volume 50 mL. Later, concentration Au is analyzed by AAS and Au are deposited using a precipitant Oxalic acid (H2C2O4) and Sodium bisulfit (NaHSO3). According to the result, content of Au in the PC Mainboard is 300 ppm. For 5 grams amount of sample is obtained maximum weight of 2.14 grams Au deposition using H2C2O4 as a precipitant..
Keywords: Au, leaching, PC Mainboard, precipitant.

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

07 02. 116 (0002)

Penerbit

Pekanbaru : Universitas Riau - Fakultas Teknik - Teknik Kimia S 1., 2016

Deskripsi Fisik

xiv, 37 hlm.:ill,; 29 cm

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

07 02. 116 (0002)

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

DAUS

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar