Lipases from thermophiles are expected to play a significant role in industrial processes, since they are thermostable and resistant to chemical denaturation. Thermostable lipases are employed in various industries which includes food and diary, fat and oil modification, detergent, cosmetic, pharmaceuticals, organic synthesis, oleo-chemical and biodiesel production. The high potential of lipase application in various industries has resulted in increasing demands for new lipase which is…
Adhikary, Sujit. “Vermicompost, the story of organic gold: A review.” Scientific Research, Vol. 3, No. 7. Scientific Research Publishing Inc., [circa 2014], cesantaclara.ucanr.edu/files/235723.
In the online article, “Vermicompost, the story of organic gold: A review,” the author dives into the benefits of vermicomposting by explaining the basics of the concept, and then digs deeper into the values and assets of this “organic gold.” The article states how vermicomposting not only gets rid of…
The melting point ranges for the substances Tartaric Acid, Acetaminophen, and Phenacetin, which are in powder form and white in color, was found and compared to their literature values to find their purity. The melting point range of a 9:1 mixture of Phenacetin and Tartaric acid was later found to show the effect an impure substance has on temperature. Melting point range for unknown three that was lastly tested was matched to Acetaminophen by comparing their melting points.…
Research Question: To compare the enthalpy change of reaction of 3 neutralization reactions by using 3 different acids of distinct pH. The same base of NaOH will be used in all three experiments.
Introduction: Chemical reactions always have energy change. Energy in the form of heat, if liberated is known as exothermic and if absorbed in the reaction is known as endothermic. When a reaction carried out under standard condition at a of temperature 298K and 1 atm of pressure and 1 mole of water…
126.96.36.199. Hydrogen sulphid test (MacFaddine, 1980):
Tubes of triple sugar iron agar media were inoculated by suspected culture through stabbing into the butt and the slant then covered with sterile melted paraffin wax and incubated anaerobically for 48 h at 37°C, appearance of blackening in the butt indicates H2S production.
188.8.131.52. Sugar fermentation test (Willis, 1977):
Suspected culture was inoculated to 1% peptone water tubes containing 2% bromocresol purple and 1% quantities of the…
4.4. Physical model of the susceptibility of hot cracking for copper GTA welding
Variations of the hot cracking susceptibility during copper GTA welding could be divided into the following five stages combining the internal factor with the external factors, as shown in Fig. 14:
Fig. 14. Schematic of the physical model for the susceptibility of hot cracking during copper GTA welding.
(I). Free crystalline region The actual line of S-L is lower compared with its corresponding theoretical line…
Nucleophilic substitution reaction is that in which attacking nucleophile replaces a leaving group.
Attacking nucleophile: specie with an electron free pair or negative charge and ability to replace already present nucleophile i.e OH-
Leaving group: A specie with electron deficiency or positive charge, negative charge i.e Cl-
What is SN1 Reaction:-
SN1 indicates the unimolecular nucleophilic substitution reactions. Their rate determining step of the mechanism depends…
Determining the Chemical Formula of Hydrated Copper (Ⅱ) Sulfate Using the Empirical Formula
In this experiment, the molecular formula of hydrated Copper (Ⅱ) Sulfate will be determined.
In order to determine the molecular formula, the empirical formula is needed which is the ratio of moles of one substance to another. In this experiment, it is the ratio of Copper (Ⅱ) Sulfate to water.
The empirical formula can be determined if the moles of the compared substances…
Chemical, biological, radiological and nuclear (CBRN) weapons, also referred to
as weapons of mass destruction (WMD), continue to pose a significant threat to all living
things on earth. WMD are very different from conventional weapons. These weapons
can be used in several different ways and the effects can range from environmental
destruction, to incapacitating humans or animals, or even killing them.
The Department of Defense (DOD) Strategy for Countering Weapons of Mass
The concentrations of difference between the membrane phase and feed phase based on the mechanism of mass extraction. In the case of feed solution represented radioactive simulated waste solution and dissolved in 0.5M HNO3. In the feed phase decreasing with H+ concentration. pH values at 2.5 into 5.5 in the feed phase. Fig,s(5a-5c). Shown the effect of hydrogen ion concentration in the feed phase and studied of pH range 2.5-5.5 for 0.5M HNO3. Stripping solution of 0.05M of EDTA. Initial…