The purpose of this experiment is to perform a two step reductive amination using o-vanillin with p-toluidine to synthesize an imine derivative. In this experiment, 0.386 g of o-vanillin and 0.276 g of p-toluidine were mixed into an Erlenmeyer flask. The o-vanillin turned from a green powder to orange layer as it mixed with p-toludine, which was originally a white solid. Ethanol was added as a solvent for this reaction. Sodium borohydride was added in slow portion as the reducing agent, dissolving the precipitate into a yellowish lime solution.
TLC was used to identify the actual unknown product as well as other products/reactants present in the filtered solution. The procedure was conducted by placing a TLC plate in a developing chamber that is filled with a small amount of solvent. The solvent cannot be too polar because it will cause spotted compounds on the TLC plate to rise up too fast, while a very non-polar solvent will not allow the spots to move. The polarity of the spots also determines how far it moves on the plate; non-polar spots are higher than polar ones. After spots on the TLC form, the Rf values are calculated and used to analyze the similarity of the compounds.
First, SUBOXONE is an prescription medicine, used as a treatment method for adults addicted to opioid drugs. Equally important, Suboxone is formulated as buprenorphine, which can be taken orally or sublingually in order to prevent pleasureable attempt of euphoria. By the same token, the medication SUBOXONE is an listed controlled substance containing buprenorphine, meant to target people abusing prescription medicines or street drugs. Another key point, Suboxone maintenance is an complete treatment program, which includes counseling and behavioral therapy.
Act Two Scene V & Vl Major characters: Cyrano and Roxane Minor character(s): The Duenna Scene V Cyrano, Roxane, and the Duenna Cyrano: I’ll give her my letter with the slightest opportunity! (ROXANE, masked, appears behind the glass of the door, followed by the DUENNA. Cyrano goes to open the door.) Come in!
This essay aims to compare the Toussaint and Tecumseh, including ideas, circumstances that affected their actions, aims and the significance of their actions. Firstly, both Toussaint and Tecumseh were inspired by the idea of equality. But Toussaint was affected by the books about the Enlightenment and ancient European military books as he can read and write while Tecumseh cannot read and write so his mind is only affected by the culture and mystical religion of his tribe. So, Toussaint emphasized the equality and the freedom for his race, yet, Tecumseh emphasized the rights and independence of Indians.
Through Rostand’s poetic writing, the author exemplifies the protagonist’s noble soul by Cyrano’s use of grand gestures to show his bravery, selflessness and loyalty. When Roxane confronts Cyrano with the idea of protecting Christian from the other cadets, she then refers to his bravery in fighting one hundred men and then responds with “I have shown more since" (Rostand 47). Although Cyrano loves Roxane but Roxane loves Christian he promises Roxane to protect Christian because he loves her and wants what is best for her. Roxane has arrived to the battlefield and Christian has been shot, so Cyrano lies to Christian telling him “I’ve told her everything. It’s you
Clomiphene citrate, more commonly known by its brand names Clomid and Serophene, is a drug prescribed to stimulate ovulation in order to treat infertility. This drug was created by Frank Palopoli in 1956 while he worked for Merrell Company. It was first successfully induced ovulation in women in 1961 and was approved by the Food and Drug Administration (FDA) in 1967(102) It was approved for marketing in 1967 under the brand name Clomid. It was first used to treat cases of oligomenorrhea but was expanded to include treatment of anovulation when women undergoing treatment had higher than expected rates of pregnancy.(23) Clomiphene was initially discovered to be effective in the treatment of polycystic ovarian (PCO) disease and other forms of
Friends, Romans, countrymen, lend me your ears. You may be aware of the events that have risen in the past few months, and how Cicero claims that he himself has saved Rome. However, Catiline’s account of this event is severely different. Because of this difference, it is my obligation to ensure that this report of the events be as unbiased as possible.
In this experiment we investigated the physical and chemical properties of cis-butenedioic (maleic acid) and trans-butenedioic (fumeric acid) isomers. We used pH paper to determine the difference in pH between the two, water to determine the solubility of each and added a magnesium strip to each in order to determine the reactivity of each isomer. The results that we determined by this experiment is that Maleic acid is more acidic, pH of 1, than Fumeric acid, pH of 2; we found that Maleic acid was more soluble than Fumeric acid considering that the Fumeric acid did not dissolve in the water at all noticeable; Maleic acid had a much high reactivity with the Magnesium strip showing a large amount of bubbling when it was added while Fumeric acid
Let 's begin with the basics. If you 're new to Study Drugs and Nootropics, there is going to be a degree of trial and error you 're going to have to play with to see which stack will work best for you. Because some brain nutrients do not require strict timing to maximize their effect and are commonly bought in health food stores, they 're often the best route for beginners. Choline & Inositol: Popularly known for their synergistic effects, Choline and Inositol are two of the most basic nootropics. In combination, the pair play a large part in healthy neurotransmitter function.
As time changes and the human population begin to grow, we get the idea of faster and cheaper to keep the world satisfied. In the mid 20th century a revolution occurred called the Green Revolution. This revolution came about because humans wanted a way to supply enough food for the growing human population by dramatically changing the field of agriculture forever. The Green Revolution was a period when agriculture yield increased due to new advances and chemicals. One advance was chemical fertilizer, theses fertilizers was able to supply crops with extra nutrients and increase the yield.
Sustainable energy sources are crucially needed with the threat of global warming and declining fossil fuel reserves. Currently, ethanol is the only renewable liquid fuel mass-produced aside from the often-used non-renewable petroleum-derived liquid fuels in the transportation department. Despite that, there are lots of obstacles in the usage of ethanol for it to be used efficiently. The suggested manufacture of 2,5-dimethylfuran (DMF) from fructose will be able to create alternative solution to our dependence to petrol especially as it is more capable than ethanol and helps to convert the liberal supply of renewable biomass. There are two stages to eliminating five oxygen atoms to turn carbohydrates, fructose or other hexose compound, to DMF.
1.3 Organosilane [66] Monomeric silicon chemicals are known as silanes and any chemical that contains at least one carbon-silicon bond is known as an organosilane. Generally, organosilanes contain three key elements beside silicon; X represents for an organic moiety that is non-hydrolysable which can be either reactive or non-reactive depending on its type. OR\ is a hydrolysable group such as alkoxy or an acetoxy is known to be unstable when present with hydroxyl groups. Finally, R is a space moiety, which can be aryl or alkyl chain.
Introduction Chevron Phillips Chemical Company is the major producer of Cyclohexane. This successful company hoses the three largest cyclohexane plants in the world. Many are puzzled by how the production of cyclohexane seems to have become stagnant. Perhaps this is due to the cost of benzene increasing or the demand increasing. Through thorough investigation, the answer to this question and many more can be answered.
Using a thin-layer chromatography, or TLC, the position in which molecules stop advancing upwards could be observed. By applying the TLC method to this experiment, different traveling distances of a certain chemical, with changing salt concentrations of water, can be measured. In this investigation, however, sheets of tissue papers were dipped into salt water with different concentrations and soaked until the water traveled to the top, so the method was different from the TLC experiment. Consequently, the volume of liquid absorbed will likely not change with different salt concentrations since every time the paper will be dipped into the solution until it completely absorbed water, each time in the same manner. Moreover, the mass of solution absorbed will increase because the density of the solution increases with increasing concentration.
