KARAKTERISTIK ARANG AKTIF DARI TEMPURUNG KELAPA DENGAN PENGAKTIVASI H2SO4 VARIASI SUHU DAN WAKTU
Abstract: Activated charcoal
is charcoal that has activated for increasing its surface area by opening the
pores so that increase the adsorption power. The surface area of the activated
charcoal is between 300 and 3500 m2/g. Adsorption power from activated charcoal
is very large, i.e. ¼ to 10 times the weight of activated charcoal. Activated
charcoal is a good adsorbent for the adsorption of gases, liquids, and
solution.
Characteristics of activated charcoal which are moisture content, ash
content, and absorption of the iodine. Manufacture of activated charcoal begins
with soaking for 24 hours using 2N H2SO4 solution, after it was drained and
then roasted to remove the remaining water. Moisture content test was doing by
weighing 1 gram of activated charcoal and then put it ini the oven at 105-1100C
temperature for 120 minutes. Ash content test was by weighing 1 gram of
activated charcoal and put in the furnace at a temperature of 5000C for 30
minutes, raise the temperature to 8150C for 90 minutes. Determination of the
absorption of iodine is to weigh approximately 0.5 gram of activated charcoal
and mix with 50 ml of iodine solution 0,1 N. Shake it for 15 minutes. Take 10
ml of the sample solution and titrate with natrim thio sulfate solution 0.1 N.
Adding amylum solution of 1% as an indicator to the titration result becomes
colorless.
Pada penelitian ini dihasilkan kondisi optimum pada suhu pengovenan
1000oC selama 60 menit. Arang aktif yang didapatkan pada kondisi ini memiliki
kemampuan adsorbsi yang baik dengan kadar penyerapan iod yang tinggi sebesar
529,94 mg I2/gram arang.
In this research produced the optimum conditions of oven temperature
10000C for 60 minutes. Activated charcoal obtained under these conditions has a
good adsorption capability with high levels of iodine absorption of 529.94 mg
I2/g charcoal.
Penulis: Siti Jamilatun, Siti
Salamah, Intan Dwi Isparulita
Kode Jurnal: jpkimiadd150625
