Phosphorus

Phosphorus is the fifteenth element on the periodic table. It has fifteen protons, sixteen neutrons, and fifteen electrons. It has a mass number of 30.97 and an atomic number of fifteen. Its element symbol is “P.” Phosphorus was discovered by Hennig Brandt in Hamburg in the year 1669. Hennig evaporated urine and heated the residue left behind until it was red hot. This was where the phosphorus vapor was distilled, which he then collected by condensing it into water. Hennig kept his discovery a secret, because he believed that he had found the philosopher’s stone that could turn base metals into gold. After he ran out of money, he sold the phosphorus that he discovered to Daniel Kraft who showed it around Europe. Later it was discovered that…

Phosphorus (chemical symbol P) is an element that comes in the form of three allotropic. A white waxy solid, a red powder or black powder .White phosphorus is poisonous and when it comes in contacts with air (0) it can spontaneously ignite, which is why white phosphorus is stored in water (figure A). Phosphorus boiling point is 280°C and a melting of 44°C. When phosphorus is boiled it forms a red powder (figure B) which is found in the head safety matches (figure C). Black phosphorus is created…

Phosphorus was discovered by the German alchemist Hennig Brandt, in 1669. In a surely arduous process, Brandt heated and processed 50 to 60 buckets, per experiment, of urine until he isolated a substance he named ‘light-bearer’ or phosphorus. Each of these experiments could take two weeks. He would let these buckets of urine stand until they ‘bred worms’. Brandt would then boil the urine with sand, and this is how he distilled elemental phosphorus. This discovery is also notable, aside from…

Phosphorus: General: Phosphorus is one of chemical elements of periodic table with atomic number 15 and atomic mass 30.9738 g/mol. Phosphorus is one of members of polyvalent non-metal of Nitrogen group and can be found in nature as some different allotropic format. Phosphorus can not be found free in nature since it’s so reactive and while it’s isolated and pure, it is clear and almost transparent. Phosphorus can be found in three common forms as white, red and black which their particular…

The element name given is Phosphorus, it is symbolized in on the periodic table as a P. Its atomic number is 15 and the atomic mass is 30.974 (which is a rounded number). Group number the element is apart of on the periodic table is 15. Phosphorus’ listed isotopes are P-31 (stable) and 23 others and its electron configuration is [Ne]3s2 3p2. Physical properties of the element are varied depending on which allotrope of the element you are talking about. White Phosphorus has a melting point of…

Where did phosphite come from? During WWII, rock phosphate was used as a white phosphorus incendiary and smoke screen. The shortage of rock phosphate concerned ag-officials and they began to look for alternative sources of phosphorus fertilizers. As a result, phosphonates were first considered as fertilizers in Germany and the United States during the 1930s and '40s. Rock phosphate is the beginning of most commercially made phosphorus products in the market today. Without the phosphate, many…

During this lab, my main goal was to discover exactly how much phosphorus (or phosphate) is in the composition of plant food, or in the case of the Guided Inquiry portion of the lab, in two different brands of plant food. If I put it in the most concise way possible, to do this, I carried out quite a few processes that caused the components of the plant food to separate from each other. Basically, I got the phosphorus, along with some other substances, to form as a precipitate. Next, through a…

levels of phosphoric acid in the undiluted Pepsi-Cola were calculated using Equation 1, P/ppm=(Diluted P/ppm )((Total Vol Dil Sample/ g)/(Mass soda / g))(15/10) (1) In Equation 1, P/ppm is representative of the phosphorus content in Pepsi-Cola, 15 represents the sum volume of U1 and the color reagent, and 10 represents the volume of U1. Figure 1 shows the regression model of the found calibration results (ppmP versus the absorbance/AU at…

But one of the things that I learned more about was the problem with surface runoff of fertilizers and how it interacts with herbicides. The lab showed the participants on a small scale how eutrophication occurs and how it doesn't take a long time for algae to take over an area. Nitrogen and Phosphorus are usually found in fertilizers but not always at the same time. A study done said “ Concentrations of phosphorus and nitrogen in surface waters are being regulated in the United States and…

Phosphates Phosphates are chemical compounds containing phosphorus. Phosphorus is a non-metallic element which is necessary for life and is found in rock as inorganic phosphates. As water runs over and through rocks it carries off small amounts of minerals such as calcium, magnesium, and phosphates. Phosphates are chemicals containing the element phosphorous, and they affect water quality by causing excessive growth of algae. Read more :…