Paraffin

RESEARCH TASK AND WRITTEN REPORT Many theoretical and experimental problems were not solved in the early twentieth century. There were attempts to explain the behaviour of matter on the atomic level with the laws of classical physics however they were not accurate nor successful. It was not until the period between 1900 and 1930 where a revolution occurred and a generalised formulation called quantum mechanic was developed. And since the understanding of the structure of the nucleus of the atoms…

the Nobel Prize for his discovery in 1932. Chadwick's experiment included projecting alpha source particles toward Beryllium "the light element". The emitted particles after enduring the Beryllium target (becomes neutrons) and fall on the paraffin wax.The paraffin wax in turn releases another type of particle (protons). At that time atoms were thought to be made up of protons and electrons (The Experiment - Chadwick Experiment). The particles given off by from Beryllium had no charage and was…

Mineral oil has eighteen carbons, making it very viscous. Hexane and pentane are both not very viscous because they only have four and five carbons. Paraffin wax is a solid, and has over twenty hydrocarbons, while methane and butane are gases and have less than five carbons. This shows that at room temperature, hydrocarbons with less than five carbons are gases, hydrocarbons with five to eighteen carbons…

Research Article Pharmacy Practice GELLIFIED EMULSION FOR SUSTAIN DELIVERY OF ASPIRIN AS ANTI-INFLAMMATORY INTRODUCTION Aspirin is a non-steroidal anti-inflammation drug (NSAID). It widely use as analgesic in treating mild to moderate pain such as injury, headache, arthritis, menstrual cramp and other musculoskeletal condition. Aspirin is an ester of salicylic acid, while after ingestion it will undergoes hydrolysis which produce salicylic acid and acetic acid. Salicylic acid…

scented and apple scented candles. Hypothesis: Unscented candles burn more quickly than scented candles. Overview: Candles Candles are a convenient way of providing light and heat when no electricity is available. They are normally made from paraffin wax with a wick in the middle. Candles can also be made from soy wax or other plant wax, animal fat or bee wax. Wax acts as a fuel to keep the candle burning. The wick has to be an absorbent twine with strong capillary ability. When the wick…

fatty substances, no aqueous and hold of water only up to 5%. -Advantages: Chemically inert, don't dry out on aging and have a good emollient effect. -Disadvantages: difficult to remove, cannot apply on hairy surfaces. -Examples: liquids paraffin and soft, hard paraffin. B- Absorption bases: more hydrophilic than oleaginous base. Advantages: high water absorption, better spreading and good emollient effect. Disadvantages: difficult to remove, cannot apply to exudates area. Examples: Anhydrous…

Alvimopan for post-operative ileus: What we should know Post operative ileus is a distressing problem after gastrointestinal surgeries ( open or laparoscopic ). It leads to a significant patient discomfort, prolonged hospital stay which eventually adds to significant increase in overall cost of treatment. On many occasions, ileus is the cause of readmission or re-exploration. Length of hospital stay and discharge from the hospital is…

What’s in This Toothpaste is a formal essay and it is an informational essay. This essay has an explicit thesis which is “What’s in this toothpaste” (Bodanis, 10) and the urgency of toothpaste consumers to know what is in their toothpaste. In this essay the author writes about the ingredients that make up toothpaste. An effective example of diction is the very well use of scientific phrases. The author uses scientific phrases such as “a large helping of gummy molecules from seaweed Chondrus…

pandemic virus. His journey explains how a couple of doctors in laboratory in a war-ridden city, Kinshasa sustained routine biopsy procedures. The procedures where done by collecting tissue from patients, either dead or very sick and preserving it in paraffin (wax). These preservatives where kept in the back shelves of an underfunded pathology laboratory at the University of Kinshasa. Not until decades later did they fall into the hands…

us how to calibrate the microscope for specific antibodies and stains, and how to identify Bartonella and other cell types in tissue samples. In the afternoon, we began the process of preparing the feline gonads for staining by deparaffinizing the paraffin embedded cat gonads. We also labeled each of the wells with the antibodies and stains that will be…