Jurnal Teknik Kimia USU
Vol. 4 No. 1 (2015): Jurnal Teknik Kimia USU

PEMBUATAN ASAM OKSALAT DARI ALANG-ALANG (Imperata Cylindrica) DENGAN METODE PELEBURAN ALKALI

Iriany (Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara)
Andrew Faguh Sitanggang (Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara)
Rahmad Dennie A. Pohan (Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara)

Article Info

Publish Date
31 Mar 2015

Abstract

Imperata grassland is one of the wild plant which have a low economic value but containing high cellulose. Therefore it is potentially to be used as raw material for oxalic acid manufacturing. The oxalic acid can be produced from imperata grassland through 4 steps: alkaline hydrolysis, precipitacion, acidification and crystallization. Experiments are carried out in a three necks glass equipped with thermometer, mixer, heater and condenser. Cooking solution NaOH were varied 3,5 N; 4 N and 4,5 N and cooking time 50, 60, 70 and 80 minutes. According to the result from the experiment, at the condition 98oC of cooking temperature, the highest yield of oxalic acid about 44,39% is obtained at 4 N concentration of sodium hydroxide and 60 minute of cooking time. Oxalic acid produced has 104oC of melting point and 1,2 of degree of acidity (pH).

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Journal Info
Jurnal Teknik Kimia USU
Website

Abbrev

jtk

Publisher

TALENTA PUBLISHER

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Description

Jurnal Teknik Kimia USU merupakan jurnal elektronik yang mempublikasikan karya ilmiah di bidang teknik kimia yang diterbitkan oleh Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara. Jurnal ini tidak terbatas pada mahasiswa dan dosen Universitas Sumatera Utara, tetapi terbuka untuk ...