Antiseptic One of the first antiseptics to go into wide use, phenol has been largely replaced by safer chemicals; but it continues to be used for this purpose. It inhibits microbe growth in the irritations to which it is applied. Topical Anesthetic Phenol numbs skin on contact, making it an effective topical anesthetic and analgesic. It is often included in sore throat sprays and preparations applied to soothe rashes and minor skin irritation. Chloraseptic throat spray and cough drops contain phenol as their active ingredient.
It is the one that we used in our experiment. Catalase will only work with Hydrogen Peroxide. It speeds up the breakdown of this toxic chemical into water and oxygen (2H202 (l) --->2H2O2 (l) +O2 (g)). Catalase is important because it breaks down Hydrogen Peroxide. Hydrogen Peroxide at high concentrations can be lethal.
Copper (II) sulfate is toxic to fish, and must be used wisely when eradicating pesky snails and fish parasites. To protect our water pipes, we use Copper (II) sulfate to keep evasive water plant roots at bay. This special Compound is also a helping hand in organic synthesis, reacting with potassium permanganate to make an oxidant for primary alcohols. At one point in the medical field Copper (II) sulfate was used as an emetic, which made a patient throw up immediately after consumption, but is now regarded too toxic for this use. The most interesting use most would say, is the way Roger Hiorns used 75,000 liters of Cu(II)SO4 to fill an apartment, and left it to solidify for many weeks.
Methlyene chloride was a good solvent in this case because its boiling point is 40 degrees C and will boil off before the trimyristin which has a boiling point of 56-57 degrees C. Finally acetone was added to wash the crystals and the solution was vacuum filtered. This process was repeated and the trimyristin was collected. Results: Experimental yield of trimyristin= .64g Experimental melting point of trimyristin= 59 degrees C Percentage yield = experimental-truex100 True Dicussion: The extraction of trimystrin left white crystals resembling a powder. Its melting point was 56 degrees C which was exactly the recorded value. However, given that
Hydrogen chloride (HCl acid) and sodium hydroxide (NaOH base) – sodium chloride and water Beryllium hydroxide ( Be(OH)2 not to acids ) One of the first things that you will learn in your high school or college chemistry class is that an acid always neutralizes a base, and a base always neutralizes an acid. Acids include vinegar, muriatic and citric fruits like lemons, and will turn a litmus paper red. Bases include sodium hydroxide, calcium hydroxide, ammonia water and many bleaches, and will turn litmus paper blue. Although neutralizing acids and bases is simple in theory, you have to be extremely careful when working with chemicals in order to prevent serious burns NaOH (sodium hydroxide) HCl + NaOH --> NaCl + H2O NaCl is table salt which is neutral A salt is any compound which can be derived from the neutralization of an acid and a base. The word "neutralization" is used because the acid and base properties of H+ and OH- are destroyed or neutralized.
There is nothing better than a cup of coffee loaded with caffeine to give you the extra boost you need to get through your day. III. Caffeine has the same pharmacological effects on the body as many of the substances we associate with doing harm. Thesis Statement: The three areas I will cover in my speech are the beneficial effects of caffeine, the negative effects and discuss the safe levels of caffeine consumption. Body: I.
Soda is like a flux to help decrease the melting point of silica, also, lime helps make the structure stronger. (Britannica, 2012) Soda-lime glass is used to make bottles, jars, windows, and lightbulbs. Coloring is added when it is liquefied to create stain glasses. (Laurel, 1996)Stained glasses are
The pipette was then filled with 25.0mL’s of acetic acid and then drained into a conical flask, to speed up the process both of the conical flasks were filled with 25.0mL of the acetic acid. 8. Three drops of phenolphthalein was then added to the flask with the acetic acid. 9. The conical flask was then positioned to just under the burettes dropper which had its stopcock opened to allow a medium drip rate and had the sheet of filter paper slipped under it so that the colour could be seen more earily.
Emilio Arias Synthesis and Characterization of Aspirin Introduction: Aspirin has become the most widely used drug in the world due to its many uses. In the body, aspirin relieves pain, inflammation, reduces fever, and thinning of the blood by inhibiting the formation of molecules called prostagladins. The purpose of this lab is to synthesize aspirin, to see how efficient and pure the synthesis is. Aspirin will be synthesized during the first part of the experiment. Three tests will then be performed to examine the identity and purity of the synthesized aspirin.
Both of these Chamomile variations contain terpenoids and flavonoids which make up its medicinal properties (Srivastava 2010). For the purpose of this review, which will look at the medicinal use of Chamomile in treating stomach ailments, two traditional sources have been located ; Culpeper’s Complete Herbal by Nicholas Culpeper (1814) and The Complete Herbalist by O.Phelps Brown (1878). Culpeper (1814, pp. 73 to 75) states that the decoction of chamomile relieves “all pains and stitches in the side”, continuing to show that it has a “wonderful speedy property” on “torments of the belly”. His work states that in order to obtain its full medicinal properties the chamomile should be used in a clyster, or smeared onto the problematic area.