Results 41 to 50 of about 6,355 (149)

Efektivitas Pembelajaran Daring Berbasis Inkuiri Melalui Whatsapp Group Terhadap Pemahaman Konsep Benzena dan Turunannya

open access: yesPSEJ (Pancasakti Science Education Journal), 2022
This research aims to determine the effectiveness of inquiry-based online learning using WhatsApp Group on understanding the concept of benzene and its derivatives by comparing the level of concept understanding in benzene and its derivatives produced by
Ali Amirul Mu'minin
doaj   +1 more source

SINTESIS DAN KARAKTERISTIK POLIEUGENOL DARI EUGENOL MENGGUNAKAN KATALIS H2SO4 – CH3COOH

open access: yesKovalen: Jurnal Riset Kimia, 2019
Telah dilakukan sintesis polieugenol dan karakteristiknya dari eugenol menggunakan katalis H2SO4 – CH3COOH. Sintesis dilakukan dengan cara polimerisasi kationik dengan perbandingan eugenol dengan katalis H2SO4 – CH3COOH adalah 4:1.
Sitti Ainun Hikmah   +2 more
doaj   +1 more source

PRARANCANGAN PABRIK ISOPROPIL BENZENA DARI PROPILENA DAN BENZENA DENGAN PROSES ALKILASI KAPASITAS 100.000 TON/TAHUN [PDF]

open access: yes, 2013
Isopropyl benzene is an intermediate material used for the manufacture of phenol and acetone. Manufacture of isopropyl benzene by alkylation process.
Rukmana, Mochlis Winta, Susilowati, Dian
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Maximising utility savings through appropriate implementation of combined heat and power scheme [PDF]

open access: yes, 2004
Combined Heat And Power (CHP) Scheme, Also Known As Cogeneration Is Widely Accepted As A Highly Efficient Energy Saving Measure, Particularly In Medium To Large Scale Chemical Process Plants.
A. Manan, Zainuddin, Lim, Fang Yee
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The Role of CYP4502E1 Genetic Polymorphism on Benzene Metabolism [PDF]

open access: yes, 2017
The carcinogenic effect of benzene is associated with metabolites produced in benzene metabolism such as phenol, catechol, quinones, muconic acid (tt-MA), and phenyl mercapturic acid (s-PMA). The role of CYP4502E1 enzyme in
Hardiany, N. S. (Novi)   +3 more
core   +2 more sources

PENGAMBILAN MINYAK ATSIRI BUNGA CENGKEH (Clove Oil) MENGGUNAKAN PELARUT n-HEKSANA DAN BENZENA

open access: yesJurnal Bahan Alam Terbarukan, 2013
Minyak cengkeh merupakan salah satu jenis minyak atsiri yang dapat diperoleh dari bunga, tangkai atau gagang bunga dan daun cengkeh. Kandungan minyak atsiri bunga cengkeh mencapai 21,3% dengan kadar eugenol antara 78-95%, dari tangkai atau gagang bunga ...
Saiful Hadi
doaj   +1 more source

Analisis Pemajanan Benzena terhadap Kadar Fenol dalam Urin dan Status Anemia pada Pekerja Sektor Industri Pengolahan Petroleum [PDF]

open access: yes, 2006
Background : Benzene is known to cause blood disorders. The concentration of benzene in the workplace was above REL NIOSH, 0.1 ppm, so the workers of the petroleum refining industry were the population at risk of acute myeloid leukemia (AML) when ...
Joko, T. (Tri)   +2 more
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PEMBUATAN DAN PEMANFAATAN ARANG AKTIF DARI AMPAS DAUN TEH

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
This report deals with an experiment on the manufacture of activated charcoal from the wastes of tea­ leaf processing. The purpose of the experiment was firstly, to evaluate the influence of H3P04 concentration as a chemical activator on the yield of ...
R Sudradjat, Ani Suryani Suryani
doaj   +1 more source

KARAKTERISTIK ARANG AKTIF TEMPURUNG BIJI NYAMPLUNG (Calophyllum inophyllum Linn)

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2010
Limbah tempurung nyamplung dapat dimanfaatkan sebagai arang aktif untuk bahan penyerap gas dan cairan. Tujuan penelitian ini adalah untuk mengetahui karakteristik arang aktif tempurung biji nyamplung.
Santiyo Wibowo   +2 more
doaj   +1 more source

Analisis Risisko Kesehatan Pajanan Benzena di Industri Percetakan X Kota Semarang [PDF]

open access: yes, 2017
Printing Industry X Semarang is one of the industries that use chemicals containing benzene in the production process. Accumulation of benzene concentration in production room can cause health problem, both carcinogenic or noncarcinogenic. The purpose of
Budiyono, B. (Budiyono)   +2 more
core  

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