Carboxylic acid

Sahoo, L.M. Das, MKG. Babu and S.N. Naik, Biodiesel development from high acid value polanga seed oil and performance evaluation in CI engine, Fuel, 86, 2007, 448–54. [2] L.C. Meher, S.N. Naik, and L.M. Das, Methanolysis of Pongamia pinnata (Karanja) oil for production of biodiesel, Journal of Scientific and Industrial Research…

Pantoprazole undergoes hepatic first pass metabolism , hence it shows poor bioavailability. The aim of study was to prepare and evaluate mucoadhesive tablet of pantoprazole using tamarind seed powder in combination with HPMC, magnesium oxide, and talc. Tamarind seed powder is used for dissolution enhancer (improve dissolution). Method: Six Formulations were developed with varying concentration of polymer like HPMC and other excipients like tamarind seed powder, magnesium oxide and lactose…

dissolved in Diethyl Ether (100mL) and added to the reaction chamber and reflux was initiated again for 15 minutes. The reaction was cooled in an ice bath to ambient temperature. A cold acidic solution was created with ice (about 50mL) and Sulfuric Acid (4.5 mL) diluted with water to create the volume of the total solution (~75mL) add this acidic solution to the reaction flask through the condenser dropwise making sure to stir the reaction mixture during the addition. Pour the final biphasic…

The results of the experiment were that the product created to determine the coefficients of the coordination complex, KaFeb(ox)c ∙ dH2O. On day 1, K2C2O4 ∙ H2O and FeCl3 ∙ 6H2O were mixed together forming a green solution (Figure 1). The green solution was set aside for 45 minutes in the dark to allow crystals to form (Figure 2). The crystals formed slowly at first, but then progressed along the way (Table 1). After the product rested in an ice bath, the solid crystalline product was filtered…

Direct methane activation into chemicals and fuels can be compared to converting lead into gold, as methane is an inert molecule with few methods of selective transformation. Methane is a ubiquitous byproduct with the potential to create more efficient chemical syntheses and replace the current petrochemical feedstocks through less expensive and more readily-available alkanes . C-H bond activation frequently occurs at transition-metal centers , often with high selectivity and trivial conditions.…

In this experiment, the components of “Wellactin A” were separated into sucrose, an unknown carboxylic acid, and an unknown organic neutral compound. The unknown compounds were identified by their melting points and the percent recovered was calculated. First, the sucrose was separated by dissolving the organic acid and the organic neutral compound in diethyl ether. 104.9% was recovered, so that means the sucrose was not entirely pure. The sucrose could have been contaminated by another…

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 efficiency of an acid extract of Antigonon Leptopus used as corrosion inhibitor for mild steel in 1M HCl medium is inspected by weight loss, temperature and electrochemical studies in the presence and absence of extract . The polarization studies…

PRE FORMULATION STUDY: Pre formulation testing was an investigation of physical and chemical properties of a drug substance alone and when combined with excipients. It was the first step in the rational development of dosage forms. Class: -Pre formulation study can divide into two subclasses: API characterization, Compatibility study Active pharmaceutical ingredient (API) characterization:- Organoleptic evaluation:-These are preliminary characteristics of any substance which is useful in…

The goal of experiment four was to use sodium dichromate to oxidize borneol to camphor. The camphor was purified using sublimation, then reduced to isomeric alcohol isoborneol with sodium borohydride. 1H NMR was used to determine the ratio of borneol to isoborneol in the final product. The experiment was carried out by using sodium dichromate to oxidize a borneol solution. Once the reaction was complete the mixture was separated using extraction techniques, dried, and ether was removed via…

to form NH3+ therefore it is soluble in water. The conjugate base for cyclohexyl amine is the most unstable out of all the choices so it is very basic and the more basic the easier to dissolve in an acid. Cyclohexane carboxylic acid is most acidic of all. The conjugate base of cyclohexane carboxylic acid is very stable compared to the other cyclohexane derivatives, therefore it is very soluble in basic…