In making bioplastic of starch and PVA, the data supporting does require raw materials' miscibility into the water solvent. To have expected high solubility of water to starch and PVA to produce the desired properties. Miscibility can predict using phase equilibrium methods. In this study, the equilibrium of starch, PVA, and water was determined using the UNIFAC method. Using the UNIFAC method …
Conventional plastics produce waste that was difficult to decompose and needed to substitute with starch-based bioplastics. Sago consist of 27-35% amylose and 50-73% amylopectin, which have the potential to be used as a material for starch-based bioplastics. This study aims to determine the optimal value of Microcrystalline Cellulose (MCC), citric acid and sorbitol for the characteristics …
Fe3O4/HAp composite can be used as drug carriers for targeted drug delivery (TTD) applications. Aim of this research was to study the effect of temperature, the mol ratio of Fe3O4/Ca(NO3)2.4H2O, synthesis time of composite Fe3O4/HAp and to calculate the crystal growth of Fe3O4/HAp composite with Avrami equation. Fe3O4 was dissolved with 50 ml aquadest then added 34 mmol Ca(NO3)2.4H2O (100 ml aq…
ABSTRACT Hospital X in pekanbaru is the hospital of the mother and child special private in pekanbaru. In the process of wastewater treatment, the laundry facilities and cafeteria of the hospital do not enter the treatment process at the wwtp so that still needs further processing in order not to pollute the surrounding environment. It is based on and Permen LH No. 5 2014 the attachment 44…
ABSTRAK This study aims to: (1) find out how to develop Project-based Student Activity Sheets on Atomic Structure Material and the periodic system of class X SMA / MA which is valid and practical, (2) produce Project-Based Student Activity Sheets on atomic structure material and periodic system elements of class X SMA / MA that are valid and practical. The object of this research is the Pr…
This research aims to produce based on Schoology E-Learning media, to determine the validity of the resulting products, to determine user responses to Schoolog-based e-Learning media. This study refers to a research and development procedure using the ADDIE development model, which includes five stages, namely analysis, design, development, implementation and evaluation (Sugiyono, 2015). Thi…
The development of this LKPD aims to develop LKPD based on scientific literacy with MEA strategy which are considered valid according to the validator’s assessment and practical based on user response test. Valid is assessed based on 6 aspects of feasibility, there are feasibility of content, characteristic of scientific literacy, characteristic of MEA strategy, language, presentation and…
Abstract: his study aims to determine the difficulties and factors that cause students' learning difficulties in the buffer solution material in class XI MIPA SMA Cendana Pekanbaru. This research is a descriptive study with a qualitative case study approach, the research population is class XI MIPA SMA Cendana Pekanbaru. The sample of this research is students whose scores have not been com…
Abstract - Improving student achievement by applying the cooperative learning model Formulate, Share, Listen and Create (FSLC) on the subject of ionic equilibrium and pH of salt solution in class XI MIA SMA Negeri 4 Pekanbaru with experimental research method design randomized control group pretestposttest against two homogeneous classes. The sample of the study was students in class XI MI…
Abstract : The objective of this study aims was to improve students’ learning outcomes on the subject of chemical equilibrium by applying the Modified Free Inquiry (MFI) learning model in class XI MIPA SMA N 2 Pekanbaru. This type of research is a quasi-experimental research design with a non-equivalent pretestposttest control grup design. The population in the study were all students of …
Abstract: Research on the development of student activity worksheets (LKPD) integrated Science, Technology, Engineering and Mathematic (STEM) on electrochemical cell subject l for class XII student of senior high school is an innovation in the development of teaching materials in order to achieve the demands of 21st century learning. Student worksheets (LKPD) that integrated with STEM are …
Abstract: This research aims to develop Student Activities Workhsheet Based on Type Inquiry Pictorial Riddle on the Equalibrium Ion and PH Buffer Solution materials for grade XI SMA/MA. Student worksheet based are designed according to the Type Inquiry Pictorial Riddle model contents. The type of this research and development (R n D) with reference to the development process of 4-D. Te subj…
ABSTRACT Peat water is surface water that inundates an area, formed from a pile of organic material for a long time. Peat water can cause skin irritation and metabolic disorders. The purpose of this study was to determine the application of the electrocoagulation method can be used to neutralize pH, and reduce levels of TSS and Fe in peat water treatment and also to determine the effect of…
ABSTRACT Acrolein (C3H4O) is the simplest unsaturated aldehyde compound which can be used as a protective liquid fuel from microorganisms, essential amino acid methionine-making material and as a good separator and dispersing agent, widely used in the ceramic, paper and electroplating industries. The establishment of an acrolein factory made from crude glycerol with a capacity of 36,000,00…
ABSTRACT Ammonia is raw material for fertilizer industry, refrigerant and textile. The need for ammonia is increasing due the development of the agricultural industry which uses ammonia as the main raw material. Ammonia is produced by reacting hydrogen from natural gas and nitrogen from air. This plant is designed to produce 350.000 ton ammonia per year, operated continuously for 330 days/…
ABSTRACT Ethylene glycol is a hygroscopic liquid with low volatility. Ethylene glycol is colorless, odorless, has a low viscosity. Ethylene glycol is used as a polyester resin for fibers, a film-making agent, an antifreeze and coolant agent, a heat exchange agent, a water-based formula, and an unsaturated polyester. The purpose of establishing an ethylene glycol factory is expected to be a…
ABSTRACT Ethylene produced by cracked the chain of various componen in naphtha. nparaffin is preferable for thermal cracking reactor feed to produce ethylene. MaxEne process help to result n-paraffin rich stream as feed to thermal cracking reactor. The main equipment of MaxEne process is adsorbent chamber with nbutane as desorbent agent and two debutanizer, one of them is debutanizer extra…
ABSTRACT Phenol or hydroxybenzene is an organic compound which is widely used. Phenols are also used to produce various substances such as bisphenol-A, phenolic resins, caprolactam, alkyl phenols, and anilines. Acetone is used as a solvent for gums, waxes, resins, oils, dyes and cellulose because it has excellent dissolving properties. The wide use of these materials causes the domestic de…
ABSTRACT 1-Hexene is a raw material in plastic production and classified as a linear alpha olefin compound. 1-Hexane is produced from the ethylene trimerization process. The use of 1-hexene in the production of High-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) is one of the co-monomers. The use of 1-hexane in the manufacture of HDPE and LLDPE is about 2 - 4% and …
ABSTRACT Hexene is a raw material in plastic production and classified as a linear alpha olefin compound. This compound is used as a co-monomer in the production of polyethylene, manufacture of lubricants, manufacture of surfactants and alcohol. The use of 1-hexene in the production of High-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) is one of the co-monomers. …