Phosphorus Phosphorus is a nonmetal are among the VA among the elements nitrogen, phosphorus is not found in nature as a free element, but is found in the form of phosphates include phosphate rock. Or calcium phosphates (Ca2 (PO4) 2) fluoride, but a tight (Ca5F (PO4) 3) also found phosphorus in egg yolks, bones, teeth, brain, nerves of people and animals phosphorus can be prepared from Ca3 (PO4). 2 using Ca3 (PO4) 2 reacts with the carbon in coal coke. And silicon dioxide (SiO2) in an electric 2Ca (PO4) 2 + 6SiO2 + 10C -----> P4 + 6CaSiO3 + 10CO P4 to be white phosphorus 1. Yellow phosphorus, white phosphorus or two. Red phosphorus third. Black phosphorus, white phosphorus or yellow phosphorus. White phosphorus molecules containing phosphorus atoms four molecular formula. P4 properties of white phosphorus 1. Solid white or yellow The reaction was swift in the drug 2. A melting point of 44 C 3. Density 1.82 G / cm3 4. Non-Conductive 5. insoluble and soluble in carbon disulfide (CS2) or other solvent molecules such as polar CCI4 6. flames. the air temperature at 35 C, so it must be kept in contact with water, O2 7. toxic smell like garlic. If inhaled, it is jaw decay 8. NaOH or KOH solution is boiled with PH3 red phosphorus. The molecular structure is similar to a long chain. A polymer of. P4 possession of red phosphorus 1. Solid red White phosphorus is more stable than the second. A melting point of 590 C at 43 atmospheric density 2:34 3. G / cm3 4. Non-Conductive 5. insoluble in water and CS2 6. flames in the air at a temperature of 250 C , phosphorus, black crosslinked structure. With the treasure first. Solid black, two. A melting point of 610 C 3. Density 2.699 G / cm3 4. stable than red phosphorus. And flammability five. Conductor slightly higher temperatures to conduct electricity better benefits. Red phosphorus is used in the manufacture of matches, incense, firecrackers, smoke bombs used P2O5 prepared for use as a precursor in the preparation of the acid phosphoric acid (H3PO4), phosphorus phosphate in the function. Control acidity - based on blood and body fluids of organisms used as fertilizer super phosphate Ca (H2PO4) 2 used organic insecticide that Knowles - phosphate. Which decompose easily Used in detergents to help remove ions in hard water. Help neutralize the base of the water to increase the efficiency of washing and also catch up with other impurities from returning to grips with the clothes have more minerals - calcium , phosphorus in bone, 58% of the remaining tissues of the body. In addition, phosphorus also is responsible for metabolism of nutrients. Whether fat, carbohydrates or protein. And it is important Phosphorus also bind to amino acids. Then acting energy to our body as well. Calcium, phosphorus Together bones and teeth of a strong body of phosphorus, a mineral that easy to find in almost any type of food. So little is known of phosphorus. But if the lack of phosphorus would have to bone pain, fatigue and bone erodes easily. On the other hand, if the body accumulate too much phosphorus. The body will be affected as well. Our bodies lose calcium. Cause problems with the bones we need calcium and phosphorus balance. Phosphorus is abundant in milk, meat, fish, beans, pumpkin seeds, sunflower butter chicken barley ผla sardines, scallops and so on.
การแปล กรุณารอสักครู่..