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All Journal Indonesian Journal of Chemical Analysis (IJCA) Hydrogen: Jurnal Kependidikan Kimia
Rustam Musta
Chemistry Department, Teacher Training Dan Education Faculty, Halu Oleo University, Kendari
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science

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Identifikasi Senyawa Penyusun Produk Cair Hasil Pirolisis Aspal Alam dari Lawele Kabupaten Buton Rustam Musta; Muh. Siddik Ibrahim; Laily Nurliana
Hydrogen: Jurnal Kependidikan Kimia Vol 9, No 1 (2021): Hydrogen: Jurnal Kependidikan Kimia
Publisher : Universitas Pendidikan Mandalika Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.614 KB) | DOI: 10.33394/hjkk.v9i1.3568

Abstract

Identification of Liquid Product Compounds from Natural Asphalt Pyrolysis from Lawele, Buton Regency has been carried out. This research is intended toidentify the content of the compounds contained in the liquid fraction from the pyrolysis of Lawele's natural asphalt. This is a research experimentwith natural asphalt material was simply pyrolyzed at a temperature of 350oC with a little vacuum. The resulting liquid products were analyzed using the GC-MS instrument and analysis showed that there were 24 compounds contained in the liquid fraction resulting from the pyrolysis of Lawele asphalt with 2 main components, namely Phenol (C6H6O) of 16.45% and acetic acid (C2H4O2) of 12.47%. Another important product is alkane derivatives, namely Undekane (C11H24) and cyclo-octene (C8H14) which can be used as fuel.
Pengaruh Penambahan Tepung Tapioka Pada Pati Ubi Kayu (Manihot esculenta) Terhadap Pembuatan Plastik Biodegradable dan Karakterisasinya Abdul Rahim; Rustam Musta
Indonesian Journal of Chemical Analysis (IJCA) Vol. 2 No. 2 (2019): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol2.iss2.art4

Abstract

Research on Biodegradable Plastic Characterization of Cassava Wastes (manihot esculenta) Substitution of Tapioca Flour. As Biodegradable Plastics Base Material. This study aims to determine the ratio of cassava starch to tapioca starch which produces the best biodegradable plastic which is then used for testing the physical and mechanical properties of biodegradable plastic film using 5% acetic acid. Comparison of cassava starch with tapioca flour used is 1 : 1; 1 : 1,5; 1 : 2; 1 : 2,5; 1 : 3. The best plastics are obtained by comparison of cassava starch with tapioca flour is 1 : 3. The characteristics of biodegradable plastics include physical characteristics consisting of thickness with value 0,273 mm, 0,286 mm, 0,413 mm, 0,280 mm, dan 0,510 mm. While the mechanical characteristics consist of tensile strength with value 0,22138 MPa, 2,10724 MPa, 0,78896 MPa, 3,25933 Mpa, dan 0,508 Mpa. Percent lengthening with value 42%, 32,8%, 55,6%, 20%, dan 31,6%. Based on the result of research, it can be concluded that the value of thickness, percent elongation, and tensile strength are influenced by the comparative formula used.Keywords:  Biodegradable plastic, physical properties, mechanics, cassava starch, tapioca flour
Aplikasi dan Tinjauan Kinetika Hasil Fraksinasi Produk Pirolisis Cangkang Biji Jambu Mete Uji sebagai Antijamur Candida albicans Ustamuni Ustamuni; Laily Nurliana; Rustam Musta
Indonesian Journal of Chemical Analysis (IJCA) Vol. 2 No. 2 (2019): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol2.iss2.art1

Abstract

Research on application and kinetics study of fractionation pyrolysis product from cashew nut shell as antifungal of Candida albicans has been carried out. This study aims to determine the constituent compounds, antifungal activity and chemical kinetics including order and rate constants antifungal activity C. albicans from fractional distillation results of cashew nut shell pyrolysis products. Cashew nuts were hydrolyzed and purified using a fractional distillation device. The results of the antifungal activity test C. albicans from fractional distillation results of cashew nut shell pyrolysis products showed that the inhibitory power varied from each concentration variation of 12.5%, 25%, 50%, 75%, and 100%. The concentration of 100% was the highest inhibitory characterized by the formation of a clear zone of 18.23 mm which indicates that the inhibitory force is a strong category. The clear zone that has been formed was calculated in terms of its chemical kinetics including the reaction order and the activity rate constant. The reaction order of antifungals C. albicans from the results of fractional distillation of cashew nut shell pyrolysis products is 0.15 with a constant activity rate of 8.74.
Co-Authors Abdul Rahim Ibrahim, Muh. Siddik Laily Nurliana Laily Nurliana Ustamuni Ustamuni