Methanol

The objective of the present study is to isolate piperine from the black pepper. Our attempt was to extract the piperine with petroleum ether from black pepper and isolation using the same solvent. It is very difficult to extract and isolate the piperine using a non-polar solvent like petroleum ether due to solubility. During our study, we observe that piperine have a very little solubility in the petroleum ether, at the same time the solubility of the resinous material in petroleum ether is…

For instance, in America can easily use farm land to produce ethanol and methanol, which is a substitute for oil. Most of the oil from the world comes from the Middle East but some can come from other countries, for example, America. In Alaska, there is three billion barrels of oil. There was a huge controversy about obtaining…

Tom, I have been talking with Mr. Bernardo (GPC’s lawyer) on a daily basis. Excluding the variables and with the joint effort of all, we understand that the lawsuit will have the following chronology: (A) Yesterday the GPC's lawyer talked with the Administrator of the Judicial Recovery. The Administrator would have said that the petition will be filed today to the case records. He also reported that will be favorable to the intended sale. (B) June 27th to July 6th - Period in which the…

formulation of castor biodiesel (CB) at optimum condition by single step base catalysed transesterification reaction. The produced ester were utilisation in a diesel engine. The optimum conditions of oil to methanol molar ratio was kept 1:9,…

Mexican Poppy is an annual herb, growing up to 150 cm with a slightly branched tap roots. Its stem is branched and usually extremely prickly. It exudes a yellow juice when cut. It has showy yellow flowers. Leaves are thistle-like and alternate, without leaf stalks, toothed and the margins are spiny. The grey-white veins stand out against the bluish-green upper leaf surface. The stem is oblong in cross-section. Flowers are at the tips of the branches and solitary, yellow and of 2.5-5 cm diameter.…

chromatographic methods were developed for the assay of the FDA approved lozenges containing dextromethorphan hydrobromide (DXT) and menthol (MNT). The first was a green HPTLC method which depends on using Merck HPTLC aluminum sheets of silica gel 60 F254 and methanol-ammonia (10:0.1, v/v) as mobile phase. This was followed by densitometric measurements of the spots which were retained at 0.28 ± 0.01 for DXT and 0.76 ± 0.02 for MNT scanned at 210 nm. The method was found linear over the…

-SiO2@ON/glass was coated with poly(methyl methacrylate) (950 PMMA C4, Micro Chem, 2 mL) by spin coating (500 rpm for 5 s, 1,000 rpm for 5 s, 2,000 rpm for 5 s, 1,000 rpm for 5 s, SP-7200GT spin coater, Intec systems). The plate was cut into 4 pieces of 1.5 × 2.5 cm2 area (Refer to Figure S3), and then added to 5% HF solution (100 mL). In the first 1 min, the glass plate was detached from S-SiO2@ON/glass and removed. The S-SiO2@ON was further etched for 2 h. Caution: HF solution is extremely…

Vape Culture: Truths and Misconceptions Times are changing, and people are finding innovative ways to relieve stress that doesn’t involve smoking. Social smoking is still popular among young adults. But, some Millennials are catching up with the times and have chosen something that may soon take the lead in the smoking industry. Vaping is the intake of vapor through a vaporizer. The vapor comes from the e-liquid, which may come in different – and sometimes, exotic – flavors. While there is now…

A small burette funnel was filled with column packing solvent at mobile phase, high boiling petroleum, in this case hexane (and then 10%acetone hexane mixture), and Alumina as stationary phase. When adding the sand and the alumina they have to be first mixed with the hexanes in order not to disturb the column. The Lycopene is Red- Orange and more attracted to alumina due to its high degree of Unsaturation, which can be expected to be eluted after Yellow-Orange Carotene pigments. And the other…

elbows can be slightly flexed. The fingers or toes can appear unusually crooked. (Verywell) Usually they will take out all your major organs and inject a chemical known as embalming fluid. Which is contains a mixture of formaldehyde, glutaraldehyde, methanol, and other solvents. The application of chemical preservatives to slow the natural decomposition of a corpse. (Theory and Practice) (What Is Mummification) The Modern method was refined in the 1800s. They have been widely used in Europe,…