scholarly journals Comparison Of Acetic Acid With As Formiic Acid Latex Pump Material

2021 ◽  
Vol 4 (2) ◽  
pp. 45
Author(s):  
Rudi Munzirwan
Keyword(s):  
Particle Size ◽  
Acetic Acid ◽  
Formic Acid ◽  
Retention Index ◽  
Coconut Shell ◽  
Charcoal Particle

Research on the comparison of acetic acid and formic acid as a latex coagulant has been carried out. To the latex coconut shell charcoal (particle size 80 mesh) was added to the weight of 42 grams then the latex was coagulated with acetic acid and formic acid with a pH of 4.7. As a research, the quality of rubber was carried out by measuring the initial plasticity, plasticity retention index and viscosity of rubber mooney. Finally, latex coagulated with acetic acid produced a better rubber than latex coagulated with formic aci).

scholarly journals Mooney Viscosity Determination Of Rubber With A Charm Filler

2021 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Rudi Munzirwan Siregar
Keyword(s):  
Particle Size ◽  
Formic Acid ◽  
Physical Properties ◽  
Energy Efficient ◽  
Coconut Shell ◽  
Charcoal Particle ◽  
Mooney Viscosity ◽  
Viscosity Determination

Research on the Determination of Viscosity Mooney From Rubber by Fillers Charcoal has been done. Each latex was added into the coconut shell charcoal  ( particle size 80 mesh ) were 36 , 38 , 40 , 42, and 44 gram. Then the latex is coagulated with formic acid in pH 4.7. Formic acid is used as a control for the rubber crumple without the addition of coconut shell. Research carried out by measuring the quality of rubber Money Viscosity. From the results of research it turns out that the value of the viscosity of the money obtained by the addition of charcoal to the rubber in the latex is 72.5 ; 74 ; 75.5 ; 77 ; and 75. It can be seen that the value of the best rubber Mooney viscosity of 75 , so the rubber with medium Mooney viscosity value able to provide a meeting point between the energy efficient with superior physical properties .

Preparation of Nano-Size PbTiO3 Particles and its Characteristics on the Adsorption of Organic Acids

2007 ◽  
Vol 544-545 ◽  
pp. 797-800
Author(s):  
Kun Ho Song ◽  
Byoung Moon Kim ◽  
Jeong Eun Kim ◽  
Kwang Rae Lee
Keyword(s):  
Particle Size ◽  
Acetic Acid ◽  
Organic Acids ◽  
Formic Acid ◽  
Catalyst Concentration ◽  
Sol Gel ◽  
Experimental Conditions ◽  
Calcination Process ◽  
Processing Variables ◽  
Nano Size

The nano-size PbTiO3 particles were prepared by sol-gel method and the effects of processing variables such as concentration of sol solution, catalyst, concentration of catalyst, calcination temperature and calcination process on particle size of PbTiO3 were analyzed. The condition for preparation of sol solution from the precursor is very critical to the size of PbTiO3 particle. At certain experimental conditions, the particles of 129nm, 213nm and 343nm were obtained. However, the particle size of commercialized PbTiO3 powder was 5㎛(5,000nm). The prepared nano-size PbTiO3 powder adsorbed more acetic acid and formic acid than the commercialized one; 1.5 times for acetic acid and 1.2 times for formic acid. Formic acid was preferentially adsorbed than acetic acid.

scholarly journals Catalytic Reduction of Wood Kikar (Acacia albida) by Acetosolv and Organosolv Pulping with Organic acids

2017 ◽  
Vol 60 (3) ◽  
pp. 141-146
Author(s):  
Akhtar Shareef ◽  
Mohammad Tahir ◽  
Shahid Bhutto ◽  
Nisha Khan
Keyword(s):  
Particle Size ◽  
Acetic Acid ◽  
Organic Acids ◽  
Formic Acid ◽  
Propionic Acid ◽  
Catalytic Reduction ◽  
Strong Acid ◽  
Klason Lignin ◽  
Organosolv Pulping ◽  
Acacia Albida

Kikar wood (Acacia albida) of particle size 0.315-1.00 mm was subjected to acetosolv andorganosolv pulping catalyzed by strong acid like HCl. The selective condition for pulping is 95%, 0.25%catalyst (HCl) solid/liquor ratio (S/L) 1:12.5 for 180 mins, for acetic acid, 80%, 0.2% catalyst (HCl), S/L1:12.5 for 120 min, for formic acid, 85%, 0.2% catalyst (HCl), S/L 1:12.5 for 180 min for propionic acid,giving residues impurities but the a-cellulose and klason lignin 58.5% and 24.1% in Kikar wood. Theoptimum delignification was achieved by the acetic acid as compared to other organic acids.

scholarly journals MUTU BRIKET ARANG KULIT BUAH KAKAO DENGAN MENGGUNAKAN KANJI SEBAGAI PEREKAT

PERENNIAL ◽  
2007 ◽  
Vol 3 (2) ◽  
pp. 55
Author(s):  
M. Natsir Usman
Keyword(s):  
Energy Source ◽  
Particle Size ◽  
Alternative Energy ◽  
Calorific Value ◽  
Volatile Matter ◽  
Ash Content ◽  
Fixed Carbon ◽  
Natural Energy ◽  
Charcoal Particle

The development of an alternative energy is now becoming important due to the decrease of natural energy source, The current research was conducted to observe the quality of making charcoal briquette from cocoa pod shell with the particle size of 30 mesh, 50 mesh, 70 mesh and 7 % starch as adhesive. The result showed that charcoal particle size of 70 mesh gave the best charcoal briquette quality having characteristics: moisture 10.67 %, density of 1.15 g/cm3, 18.98% ash content, 49.93 % fixed carbon, 24.99% volatile matter and the calorific value of 4372.54 cal/g. Charcoal briquette from cocoa pod shell was utilized as alternative energy. Key words: Cocoa pod shell, charcoal briquette, starch as adhesive. References

scholarly journals STUDI PEMURNIAN GAMBIR (Uncaria gambir Roxb) DENGAN MENGGUNAKAN ARANG AKTIF DARI TEMPURUNG KELAPA SAWIT SEBAGAI ADSORBEN

2015 ◽  
Vol 4 (1) ◽  
pp. 48
Author(s):  
Norman Ferdinal ◽  
Novizar Nazir
Keyword(s):  
Particle Size ◽  
Active Carbon ◽  
Coconut Shell ◽  
Activator Concentration ◽  
Effect Of Particle Size

  ABSTRACTThe purpose of this research is to know the effect of particle size and concentration activator MgCl2 to effectiveness the active carbon and examine the ability of the best active carbon that produced as adsorben to purifying gambier. This research is done in 3 steps: (A) the making of the active carbon from variety of size : ≥ 250µm (A1),180µm < F ≤ 250µm (A2), 125µm < F ≤ 80 µm (A3) and F ≤ 125 (A4) and some the activator concentration MgC12 : 0% (B1), 20% (B2), 40% (B3), 60% (B4) and 80% (B5), (B) the testing quality of the active carbon include the content of water and adsorbable Iod and (C) the testing of active carbon as adsorben to purifying of gambier. To examine about the quality of active carbon got the best active carbon from carbon of coconut shell of sawit by size ≤ 125µm with activator concentration 20% MgC12 with the content of water 2.23% and adsorbable Iod 3080.97 (mg/g). The gambir rendemen the best purifying that produced is 55.5% by the content of dust 1.303% and the content of catechin 72.40%. Keywords: Catechin compounds, Active carbon.   

scholarly journals The Influence of Extruded Sugar Beet Pulp on Cookies' Nutritional, Physical and Sensory Characteristics

2021 ◽  
Vol 13 (9) ◽  
pp. 5317
Author(s):  
Sonja Simić ◽  
Jovana Petrović ◽  
Dušan Rakić ◽  
Biljana Pajin ◽  
Ivana Lončarević ◽  
...  
Keyword(s):  
Particle Size ◽  
Sugar Beet ◽  
Dietary Fiber ◽  
Wheat Flour ◽  
Nutritional Quality ◽  
Sugar Beet Pulp ◽  
Sensory Characteristics ◽  
Total Dietary Fiber ◽  
Beet Pulp

Sugar beet pulp (SBP) is a by-product of the sugar industry in which the dietary fiber content ranges from 73% to 80%. Compared to cereal fibers mainly used in biscuit production, sugar beet fibers are gluten free and have a perfect ratio of 2/3 insoluble fiber. In this work, sugar beet pulp was extruded with corn grits (ratios of corn grits to sugar beet pulp in extrudates were 85:15, 70:30, and 55:45), and the obtained sugar beet pulp extrudates (SBPEs) were used for improving the nutritional quality of cookies. The wheat flour in cookies was replaced with SBPEs in the amount of 5, 10, and 15%. The influence of three factors (the percentage of sugar beet pulp in the SBPEs, the size of the SBPE particles, and the percentage of wheat flour substituted with SBPEs) and their interactions on the nutritional quality of cookies, as well as their physical and sensory characteristics are examined using the Box–Behnken experimental design. The addition of extruded sugar beet pulp (SBPEs) significantly increased the amount of total dietary fiber and mineral matter of cookies. On the whole, the addition of SBPEs increased cookie hardness, but the hardness decreased with an increase in extrudate particle size. Sensory characteristics (except for the taste) were the most influenced by extrudate particle size.

scholarly journals Improving the mechanical properties of polypropylene composites with coconut shell particles

2021 ◽  
Vol 30 ◽  
pp. 263498332110074
Author(s):  
Henry C Obasi ◽  
Uchechi C Mark ◽  
Udochukwu Mark
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Flexural Modulus ◽  
Filler Particle ◽  
Tensile Modulus ◽  
Coconut Shell ◽  
Polypropylene Composites ◽  
Increase With Increase ◽  
Pp Composites ◽  
Shell Particles

Conventional inorganic fillers are widely used as fillers for polymer-based composites. Though, their processing difficulties and cost have demanded the quest for credible alternatives of organic origin like coconut shell fillers. Dried shells of coconut were burnt, ground, and sifted to sizes of 63, 150, 300, and 425 µm. The ground coconut shell particles (CSP) were used as a filler to prepare polypropylene (PP) composites at filler contents of 0% to 40% via injection melt blending process to produce PP composite sheets. The effect of the filler particle size on the mechanical properties was investigated. The decrease in the size of filler (CSP) was found to improve the yield strength, tensile strength, tensile modulus, flexural strength, flexural modulus, and hardness of PP by 8.5 MPa, 15.75 MPa, 1.72 GPa, 7.5 MPa, 100 MPa, and 10.5 HR for 63 µm at 40%, respectively. However, the elongation at break and modulus of resilience of the PP composites were seen to increase with increase in the filler size. Scanning electron microscope analysis showed that fillers with 63 µm particle size had the best distribution and interaction with the PP matrix resulting in enhanced properties.

scholarly journals The Effect of Acetic Acid Treatments on the Quality of Stored Carrot (Daucus carota L.) Seeds

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1176
Author(s):  
Hanna Dorna ◽  
Agnieszka Rosińska ◽  
Dorota Szopińska
Keyword(s):  
Acetic Acid ◽  
Distilled Water ◽  
Storage Duration ◽  
Seed Vigour ◽  
Daucus Carota L ◽  
Two Samples ◽  
Before And After ◽  
Alternaria Dauci ◽  
Acid Treatments

Alternaria dauci (J.G. Kühn) J.W. Groves et Skolko and A. radicina Meier, Drechsler et E.D. Eddy are important seed-transmitted pathogens of carrot. The aim of this study was to evaluate the effects of acetic acid treatments on the quality of stored carrot seeds. Seeds of two samples were soaked for 30 min in 0.5, 1 and 2% acetic acid. Controls included untreated seeds, seeds soaked in distilled water and seeds treated with fungicide Zaprawa Nasienna T 75 WS/DS (a.i. thiram 75%). Germination, vigour and health of untreated and treated seeds were evaluated before and after 5 and 12 months of storage at 4 and 20 °C. Seeds of both samples treated with 0.5 and 1% acetic acid were characterized by higher germination capacity after storage than untreated seeds. However, treatments with 1 and 2% acetic acid negatively affected seed vigour. Generally, seeds of both samples treated with acetic acid were characterized by lower infestation with A. alternata and A. radicina after storage than untreated seeds and seeds soaked in distilled water. Moreover, acetic acid often controlled these fungi more effectively than the fungicide. Regardless of the storage duration, infestation with fungi was higher if seeds of both samples were stored at a lower temperature.

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