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All Journal Jurnal Teknologi Dan Industri Pangan Alchemy Jurnal Penelitian Kimia
Kusumastuti .
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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SINTESIS DAN KARAKTERISASI KOMPLEKS TETRASULFAMETOKSAZOLTEMBAGA(II) SULFAT Rahardjo, Sentot Budi; Wahyuningsih, Sayekti; ., Kusumastuti
Alchemy Jurnal Penelitian Kimia Vol 2, No 2 (2003)
Publisher : Alchemy Jurnal Penelitian Kimia

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Abstract

Tembaga(II) dapat membentuk kompleks dengan sulfametoksazol dengan perbandingan mol logam : mol ligan = 1 : 4. Formula kompleks yang dihasilkan adalah [Cu(sulfametoksazol)4]SO4 {%  Ni eksperimen = 5,6(2) , teoritis 5,42}. Anion sulfat (SO42-) tidak terkoordinasi sebagai ligan, diperkirakan N-H primer dari sulfametoksazol terkoordinasi pada tembaga(II). Kompleks bersifat paramagnetic dengan eff = 2,09 BM, serapan maksimum 811,8 nm (10 Dq = 147,35 kJ.mol-1). Diperkirakan struktur kompleks planar segiempat
Zeolit Performance in Improving the Quality of Used Oil Kusumastuti .
Jurnal Teknologi dan Industri Pangan Vol. 15 No. 2 (2004): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

The aim of this study was to improve the used oil by treatment with zeolite in order to absorb the undesirable components in the oil. Sample of used oil were heated with active zeolite (A1) and natural zeolite (A2) at 2% (B1), 6% (B2) and 10% (B3) in boiled water-bath for 30 minutes. The control was used oil without treatment. After filtered, the oil were analyzed for moisture content, acid number, peroxide value, clearness, colour and viscosity. The results indicated that treating used oil with 10% zeolite could reduce the initial level of tested parameters The reductions were: moisture content and volatile matters 50%, acid number 7% , clearness 3.9% and reduction of peroxide value was 33,8%. However the color and viscosity of the treated oils were not different from the used oil. Active zeolite was more effective than natural zeolite in absorbing the undesirable contaiment. Key words : Zeolite , used oil.
Co-Authors Sayekti Wahyuningsih Sentot Budi Rahardjo