Inorganic chemistry

Magnesium Alloy: Microstructure Characteristics: Fig (8) : Shows the microstructure of Magnesium alloy. Picture source: http://www.omicsonline.org/JMSTimages/2155-9589-2-114-g001.html Magnesium alloys have a hexagonal lattice structure. They are the lightest of all structural metals. Magnesium alloys possess a low galling tendency as a bearing surface in conjunction with shaft hardness above 400…

Results The results obtained were statistically analyzed using the Fishers exact test. Table 1: Comparison of microbial growth between different groups Sodium Hypochloride Total Fishers exact test Endovac Laser Control p-value No Growth 5(50.0%) 8(80.0%) 0 15(37.5%) <0.001* <103 5(50.0%) 2(20.0%) 0 7(17.5%) 103 – 108 0 0 0 8(20.0%) >108 0 0 10(100.0%) 10(25.0%) Total 10 10 10 40(100.0%) *p<0.05 statistically significant p>0.05 non significant, NS Amongst the 10…

B.Result and discussion Percentage air voids On the replacement of cupola slag we obtained the result that, on the percentages of 10, 20, 30 and 40 we have the Va values of 4.8, 4, 4.8 and 3.2 % which satisfies the morsth requirement of 3-5% and further we observed that the gradual decrease in the Va values up to 100%. So that for Va the replacement of cupola slag up to 40 % will satisfies the morsth requirement. Percentage of voids in mineral aggregate On the replacement of cupola slag we…

ABSTRACT The reactivity of acid base cements forming hydroxyapatite (HA) such as, β-tricalcium phosphate (β-TCP) and dicalcium phosphate dehydrate (DCPD). Amorphous calcium phosphates, prepared by precipitation from supersaturated solutions, can also react to form apatitic cements since they are thermodynamic unstable with respect to HA and have a setting reaction more independent of particle size. Calcium phosphate cement containing an antibiotic can be used for filling bone defects and to…

Abstract: The purpose of this experiment was to prepare and standardize a sodium hydroxide solution as well as determine the molar concentration in as strong acid and the percent by mass of acetic acid in vinegar. We used volumetric analysis, also known as titration, in both experiments. The average molar concentration for NaOH was 0.2749 mol/L while the average molar concentration of the acid solution was .2493 mol/L.The average percent by mass of acetic acid in vinegar was found to be 12.3 %…

ABSTRACT Dex-Ibuprofen–polyethylene glycol (PEG) conjugates (PEG-dex-Ibu) were organized and their prospective as a prolonged release method was investigated. PEG-Dex-Ibuprofen conjugates were synthesized as of Ibuprofen and PEG with 4000 Da molecular weights by esterification in the incidence of DCC and DMAP. The PEG-dex-Ibu conjugates were characterized by FT-IR, 1H NMR, and DSC analysis. The solubility revise in aqueous system showed an improvement within the solubility of conjugates. The…

The three groups we chose are Bohemian Mix, Young Influential, Young Digerati. From the research of the last project, we decided to design a lipstick for the woman in the groups. Because of women need to make up every day and, of course, lipstick is most important one for the whole face, even though you don 't put other stuff, such as eyeliner, on the face but the lipstick only, it will help you look good though. Bohemian mix • Color: CorailGondola • Material (lipstick): pure natural material…

CORROSION STUDIES WITH ANTIGONON LEPTOPUS IN 1M HCl S.Aejitha 1, P P.K.Kasthuri 2andGeethamani 3 1 Department of Chemistry, Asian College of Engineering & Technology, Coimbatore- 641110, India 2 Department of Chemistry, L.R.G.Government Arts College for Women, Tirupur- 638604, India 3 Department of Chemistry, Sriguru Engineering College of Technology, Tamil Nadu, Coimbatore -641110, India Correspondence should be addressed to S.Aejitha ,aejitha_subbaian@yahoo.co.in ABSTRACT The inhibition…

Kwong equations are mainly used as they are simple and a temperature-dependent correction is used for EOS constant A. van der Waals Equation van der Waals proposed the first cubic EOS in 1873. The van der Waals EOS gives a simple, qualitatively accurate relation between pressure, temperature, and molar volume. P=RT/(V-b)-a/V^2 where a is “attraction” parameter, b is “repulsion” parameter, and R is universal gas constant. Comparing this equation with the ideal gas law,P= zRT/v, we see that the…

4. Why PdO/TiON NP powders are chosen as photocatalyst? There are many reasons why PdO/TiON NP powders are chosen as a photocatalyst for MTBE mineralization under visible light. These reasons are listed and discussed as follows: 1- The synergistic effect. 2- The ease of synthesis. 3- The memory effect. 4.1 The synergistic effect Nowadays, modified TiO2 by metal and nitrogen is considered as one of the most promising TiO2 based materials for photocatalytic applications, which is able to…