ABSTRAK Ethylene is one of the most important petrochemical substances and it’s uses as raw material for various products. The last products made with ethylene include food packaging, toys, food containers, bottles, pipes, antifreeze, carpets, insulation, household appliances, etc. Chemicals made from ethylene to produce end products such as polyethylene, ethylene dichloride, ethylene ox…
ABSTRAK Linear alkyl benzene (C6H5CnH2n+1) is one of the organic compound used as raw material in the detergent industry because it has a high degradation rate and it is biodegradable. The increasing use of detergents, the linier alkyl benzene industry will also growing. This plant is designed to produce 80,000 tons per year of linear alkyl benzen (LAB). One of the main equipment in this p…
ABSTRACT Eucalyptus oil is one of the essential oils obtained from the extraction of eucalyptus leaves. The purpose of this study is to evaluate the effect of variations in sample and treatment Extraction time on the yield of eucalyptus essential oil and determine the characteristics of eucalyptus essential oil produced by themethod hydro distillation. Variations of sample treatment carrie…
Abstract Students have used student worksheets in school, but they still look passive and cannot find the concept of independent learning. The 2013 curriculum guides students to be more active and creative. This study aims to develop chemistry teaching materials such as Simas Eric-based student worksheets on colloids, knowing the validity of student worksheets based on the feasibility of c…
Abstract. This study aims to develop Schoology media as a support for Blended Learning on the subject of Stoichiometry. This research used a Research and Development (R&D) design with the Plomp model. The Plomp models have four steps faces (investigation, Design, construction and validation). The data was collected used an instruments in the form of validation sheets given to four validato…
Abstract: The purpose of the research is to see the learning exhauseiveness of students in stoikiometry subjects in class X MIA MAN 1 Pekanbaru. The type of research used in research is descriptive research with survey methods. Data collection uses test and interview techniques, while data collection tools use test questions. The sample from this study was a class X MIA learner who was samp…
Abstract – This research aims to develop Student Activities Worksheet Based on EKPA on the Reaction Rates material for grade XI SMA/MA. Student Worksheet Based are designed according to the EKPA model contens. The type of this research is research and development (R and D) with reference to the development process of 4-D. The subject pf this research is student activities worksheets base…
Research that has been done is the Effectiveness of Collaborative Learning Through Group Investigation (GI) and Think Pair Share (TPS) Techniques on Critical Thinking Ability and Self Efficacy of High School / MA Students on Chemical Equilibrium Material. This research is motivated by the value of the learning outcomes of students 'critical thinking skills in the chemical balance material …
The research that has been done is the Development of a PBL (Problem Based Learning) Module to Improve Students' Critical Thinking Ability on Acid and Base Subjects in class XI MA Darul Hikmah Pekanbaru. This research was motivated by the condition of the teaching materials in the field which were not based on PBL of students in improving their critical thinking skills. The module is a teaching…
ABSTRACT The development of plantation area in Indonesia always have increasing with significant. Along with the increasing in the area of oil palm plantations, palm oil mill production has also increased. Palm oil mill produces liquid waste with high content of organic compounds. If it is discharged into waters it has the potential to reduce water quality and pollute the environment. Wast…
ABSTRACT Acrylonitrile Butadiene Styrene (ABS) is a copolymer composed of polymerization styrene, acrylonitrile, and polybutadiene. Excellent toughness, good dimensional stability, and chemical resistance are ABS properties that are appealing. ABS is regularly used to make lightweight, rigid, and malleable products such as medical devices, cosmetics, household appliances, cabinets, bathtub…
ABSTRACT Acrylonitrile Butadiene Styrene (ABS) is a thermoplastic polymer. Lightness, rigidity, impact resistance, ease of processing, resistance to chemicals and applicable are ABS properties that are interesting. The base ABS is added methyl methacrylate to enhance the appearance and become a transparent material. The ABS consumption in 2018-2026 tends to increase due to its properties, …
ABSTRACT Biodiesel / Fatty Acid Methyl Ester (FAME) is a renewable fuel. However, biodiesel circulating in the market has the disadvantage of low oxidation stability. To improve the quality of biodiesel, biodiesel fractions are separated. The saturated and monounsaturated fractions have ideal properties as biodiesel and the polyunsaturated fraction has a very low oxidation stability which …
ABSTRACT Domestic demand for methanol continues to increase, it was recorded that in 2018 Indonesia imported 701,291.5 tons of methanol, which was the highest import compared to previous years. Methanol is widely used globally for industrial applications including acetic acid, formaldehyde, MTBE, polyvinyl, polyester and DME industries. The main raw material used in the manufacture of met…
ABSTRACT The increasing number of motorized vehicles is not matched by proper waste emission processing, which has a negative impact on the environment in the form of air pollution. This is a result of the incomplete combustion process so that the number of pollutants produced is increasing. One way to reduce the occurrence of incomplete combustion is by increasing the value of the octane …
ABSTRACT Mono-diglyceride (MDG) is an emulsifier that can be obtained by esterification of fatty acids and glycerol. This study was aimed to determine the physical-chemical properties of NADES and the effect of temperature and the addition of catalyst amount in the esterification process of fatty acids with glycerol utilizing NADES catalysts. NADES is a catalyst and a solvent at once which…
ABSTRACT The paper and pulp industry is very important economy in the Indonesian. This industry also wastesolid produces which may harm our environment. This study aims to determine the potential of bottom ash and fly ash as pellets. The experiment were performed with two variable treatmentwhich are the comparation of bottom ash with fly ash (0:100, 25:75,50:50, 75:25 and 100:0) and the a…
ABSTRACT Concrete is the primary raw material for construction which consists of constituent materials in the form of portland cement, fine aggregate, coarse aggregate, water and with or without added materials. Graphene is a nano-sized and strong material. The use of graphene can be used as an additive (admixture or additive) to improve the quality and quality of concrete. This research a…
ABSTRACT The waste of betel nut skin is still disposed of and cannot be utilized optimally, therefore it is necessary to have further processing into a product of economic value. Generally, kerosene and gas liquefied petroleum gas (LPG) are commonly used in households, but the price of kerosene and lpg gas is very expensive. This study aims to find alternative fuels as a substitute for ker…
ABSTRACT The waste of betel nut skin is still disposed of and cannot be utilized optimally, therefore it is necessary to have further processing into a product of economic value. Generally, kerosene and gas liquefied petroleum gas (LPG) are commonly used in households, but the price of kerosene and lpg gas is very expensive. This study aims to find alternative fuels as a substitute for ker…