Sulfuric acid

buffers. Additional, TweenTM 20 (pure) and 3,3_,5,5_-tetramethylbenzidine (TMB, research grade) were also obtained from Serva. GuardianTM Peroxidase Conjugate Stabilizer/Diluent was obtained from Toronto Research Chemicals (North York, Canada). Sulfuric acid 95–97% (both Baker-analyzed grade), isopropanol (Baker HPLC analyzed) and methanol (HPLC gradient grade) were purchased from Mallinckrodt Baker (Griesheim, Germany). Ethyl acetate and NaHCO3 were supplied by Merck KGaA (Darmstadt,…

Cations CHEM 1315-088  Purpose of the experiment: To identify the substances that are present in a mixture. Materials: Test Solutions and Substances 6 M hydrochloric acid, HCl Sodium bismuthate, NaBiO3 (s) 6 M nitric acid, HNO3 0.1 M potassium thiocyanate, KSCN 6 M ammonia/ammonium hydroxide, NH3 3% hydrogen peroxide, H2O2 6 M sulfuric acid, H2SO4 Sodium bismuthate, NaBiO3 (s) 6 M sodium hydroxide, NaOH Cation Solutions 0.2 M silver nitrate, AgNO3 0.5 M lead (II) nitrate, Pb(NO3)2 0.2 M…

the beginning of most commercially made phosphorus products in the market today. Without the phosphate, many of our commercially available fertilizers cannot be made such as superphosphate and triple superphosphate. • RP + sulfuric acid = superphosphate • RP + phosphoric acid = Triple superphosphate (TSP) What do all the different terms mean? Phosphoric…

different uses, but have probably never heard of these next few uses. Reviving dead car batteries: it is possible to drop two aspirin pills into the dead battery and it will help to get the vehicle started back up. The acetylsalicylic acid combines with the sulfuric acid in the car battery, causing the battery to produce one last charge. Removing perspiration stains: crush up two tablets and mix it with a half cup of warm water and let the sweat-stained piece of clothing sit for two to three…

requires less energy to form the borane intermediate, therefore 1-phenyl-2-propanol will form more readily than 1-phenyl-1-propanol using hydroboration and oxidation. If 1-phenylpropene was reacted with sulfuric acid, the major product would be 1-phenyl-1-propanol. In a hydration reaction in the presence of acid, a carbocation intermediate is formed and then attacked by a nucleophile. Since a carbocation intermediate is formed, the reaction will procedure in a manner to stabilize the positive…

Pectin yield was determined as weight of dry pectin against the weight of initial residues multiplied by 100%. Y=100(P/Bi) Where Y is the extracted pectin yield (%), P is the amount of extracted pectin in grams and Bi is the initial amount of sweet potato residues used to extract pectin. Equivalent weight and Degree of methoxylation The equivalent weight was determined according to the method by Barretina et al., (Barretina et al. 2012). 0.25g pectin was wetted with 5ml ethanol and topped…

The public health has been negatively affected by the bad pollutants in the air. With so many diseases and health problems that are caused by this, the population has been greatly affected. These health effects include death, respiratory, asthma, and cardiovascular problems (Davis, 2012). This has been happening for a while and with all of the harmful pollutants in the air, many more health problems have been occurring in people. According to a study, median annual levels that were found in the…

to as acid rain and more properly known as acid deposition. This research will thoroughly examine acid rain, it’s causes, the effects on the environment, and some possible solutions to slow the damage. Acid rain is simply rain that is acidic. This rain comes in many forms that include some dry and wet deposition. The smog that you see above cities is actually a dry form of acid rain. Pure…

Introduction: Alka-Seltzer is a medication used to alleviate ailments such as heartburn and acid indigestion1. The ingredients that the tablet is made up of helps explain the name of the medication, the sodium bicarbonate is used to balance stomach acid, help spread the aspirin which allows the speed of absorption to increase, and reacts with citric sodium which produces carbon dioxide2. One initial observation of the Alka-Seltzer tablet and water is that when the tablet was dropped into the…

IONIC LIQUIDS Introduction:- Ionic liquids are actually salts that are liquid in state, normally referred to compounds that have melting point below an arbitrary temperature i.e. 100° C. Unlike some other ordinary liquids like water and gasoline, that are composed of neutral species while ionic liquids are composed of ionic species and ionic intermediates commonly known as “ionic fluids” and “liquid electrolytes”. In ionic liquids there is a species that has a delocalized species and the other…