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  Encyclopedia of Keywords > Nature > Chemistry > Phosphorus   Michael Charnine

Keywords and Sections
WHITE PHOSPHORUS
CALCIUM
BONE
DNA
PHOSPHATE
RED PHOSPHORUS
ESSENTIAL
IGNITE
BLACK
PESTICIDES
ALLOTROPIC FORMS
URINE
CARBON DISULFIDE
DARK
NUTRIENT
POISONOUS
EXCESS
UNDER PRESSURE
FOUND FREE
PRODUCTION
ELEMENTAL
EXHIBITS
ACCIDENT
TRICHLORIDE
Review of Short Phrases and Links

    This Review contains major "Phosphorus"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Phosphorus is an essential component of living systems and is found in nervous tissue, bones and cell protoplasm. (Web site)
  2. Phosphorus is also an important component in steel production, in the making of phosphor bronze, and in many other related products. (Web site)
  3. Phosphorus is a component of DNA and RNA and an essential element for all living cells. (Web site)
  4. Phosphorus is an excellent example of an element that exhibits allotropy, as its various allotropes have strikingly different properties. (Web site)
  5. Phosphorus is an essential macromineral for plants, which is studied extensively in soil conservation in order to understand plant uptake from soil systems.

White Phosphorus

  1. White phosphorus is used as a deoxidizing agent in the preparation of steel and phosphor bronze. (Web site)
  2. White phosphorus is used in military applications as incendiary bombs, for smoke-screening as smoke pots and smoke bombs, and in tracer ammunition. (Web site)
  3. White phosphorus is used in military incendiaries, smoke pots, smoke bombs and tracer bullets.

Calcium

  1. Too much calcium results in a phosphorus deficiency and impaired metabolic function. (Web site)
  2. Organic phosphorus compounds are used as plasticizers, gasoline additives, insecticides (e.g., parathion), and nerve gases. (Web site)
  3. Phosphorus is necessary for the regularity of the heartbeat, and aids in the contraction of all other muscles throughout the body.
  4. Phosphorus is needed for bone and tooth formation, cell growth, contraction of the heart muscle, and kidney function.
  5. Laxatives and enemas that contain the chemical compound sodium phosphate and excessive intake of vitamin D can increase phosphorus levels in the body.

Bone

  1. An average person contains a little less than 1 kg of phosphorus, about three quarters of which is present in bones and teeth in the form of apatite. (Web site)
  2. Bone ash was the major source of phosphorus until the 1840s. (Web site)
  3. Vitamin D and calcium regulate the availability of phosphorus for bone formation. (Web site)

Dna

  1. Development of phosphorus indices for nutrient management planning strategies in the United States.
  2. In living organisms the role of phosphorus is essential; it is a component of DNA and RNA, ATP, and bone. (Web site)
  3. Inorganic phosphorus plays a key role in biological molecules such as DNA and RNA where it forms part of those molecules' molecular backbones. (Web site)
  4. Phosphorus is found in living things, in soil and rock, mostly as chemical compounds known as phosphates. (Web site)
  5. Phosphorus is needed for the functioning of the kidneys and plays a part in the conduction of impulses along the network that makes up the nervous system.

Phosphate

  1. Phosphorus is biologically important in its oxygenated form as the phosphate (PO43---) ion.
  2. A multivalent nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks. (Web site)
  3. A well-fed adult in the industrialized world consumes and excretes about 1-3 g of phosphorus per day in the form of phosphate. (Web site)
  4. White phosphorus is prepared commercially from phosphate rock in an electric furnace or blast furnace. (Web site)
  5. The best known of the families of compounds based on phosphorus is the group of chain phosphates. (Web site)

Red Phosphorus

  1. Red phosphorus may be formed by heating white phosphorus to 250--C (482--F) or by exposing white phosphorus to sunlight. (Web site)
  2. These occur within three major categories: white, or yellow, phosphorus; red phosphorus; and black, or violet, phosphorus.
  3. Administration of intravenous glucose solutions will cause phosphorus to combine with the glucose that is being absorbed by the cells.
  4. Red phosphorus does not catch fire in air at temperatures below 240--C, whereas white phosphorus ignites at about 30--C. (Web site)

Essential

  1. Phosphorus compounds are essential in the diet. (Web site)
  2. Phosphorus is essential for both animal and vegetable life. (Web site)

Ignite

  1. Early matches used white phosphorus in their composition, which was dangerous due to its toxicity. (Web site)
  2. Pure phosphorus ignites spontaneously in air and burns to phosphorus pentoxide. (Web site)
  3. This form does not ignite spontaneously and is not as dangerous as white phosphorus. (Web site)
  4. Ordinary phosphorus is a waxy white solid; when pure it is colorless and transparent. (Web site)
  5. Robert Boyle was the first to use phosphorus to ignite sulphur-tipped wooden splints, forerunners of our modern matches, in 1680. (Web site)

Black

  1. Ingestion of white phosphorus may cause a medical condition known as "Smoking Stool Syndrome". (Web site)
  2. White phosphorus has two modifications. (Web site)
  3. Another form of phosphorus is black phosphorus, a crystalline electrically conductive material similar to graphite in appearance. (Web site)
  4. Elemental phosphorus can exist in several allotropes, most commonly white, red and black. (Web site)
  5. The most common are red and white phosphorus, both of which are tetrahedral groups of four atoms. (Web site)

Pesticides

  1. Phosphorus compounds are also widely used in explosives, nerve agents, friction matches, fireworks, pesticides, toothpaste, and detergents. (Web site)
  2. Excess consumption of processed foods, and inadequate intake of whole foods, plus fertilizers and pesticides are some of the causes for excess phosphorus. (Web site)

Allotropic Forms

  1. Phosphorus exists in four or more allotropic forms: white (or yellow), red, and black (or violet).
  2. Phosphorus exists in three allotropic forms: white , red, and black . (Web site)

Urine

  1. This process is similar to the first synthesis of phosphorus from calcium phosphate in urine. (Web site)
  2. P - Phosphorus The flammable non-metal was discovered in Germany in 1669 by Hennig Brand who precipitated it from urine. (Web site)

Carbon Disulfide

  1. White phosphorus is insoluble in water but soluble in carbon disulfide. (Web site)
  2. Phosphorus is stored underwater as it is extremely poisonous, insoluble in water (but soluble in carbon disulfide). (Web site)

Dark

  1. This purple form is sometimes known as "Hittorf's phosphorus." In addition, a fibrous form exists with similar phosphorus cages. (Web site)
  2. White phosphorus glows in the dark and is highly explosive as well as toxic.
  3. Exposure to sunlight or to heat converts it to red phosphorus, which neither phosphoresces nor spontaneously burns in air.
  4. High inorganic phosphorus in low-phytic-acid kernels turns the test solution dark blue, while normal kernels show light.

Nutrient

  1. In ecological terms, phosphorus is often a limiting nutrient in many environments; i.e. (Web site)
  2. Correll, D. L. Phosphorus: a rate limiting nutrient in surface waters.
  3. Major nutrients include nitrogen, phosphorus, carbon, oxygen, sulfur, and potassium.

Poisonous

  1. White phosphorus is an extremely poisonous, yellow to white, waxy, solid substance, nearly insoluble in water but very soluble in carbon disulfide. (Web site)
  2. Phosphorus is very poisonous, 50 mg constituting an approximate fatal dose.
  3. White phosphorus is poisonous and can spontaneously ignite when it comes in contact with air. (Web site)

Excess

  1. In ecosystems an excess of phosphorus can be problematic, especially in aquatic systems, see eutrophication and algal blooms. (Web site)
  2. Sources of excess phosphorus include sewage and agricultural runoff.
  3. It is prepared by direct union of phosphorus (not excess) with bromine vapour. (Web site)
  4. Insufficient vitamin D intake or excess phosphorus and magnesium hinders the uptake of calcium.

Under Pressure

  1. Black phosphorus, made by heating the white form under pressure, is flaky like graphite. (Web site)
  2. It was first prepared by P. W. Bridgman by heating white phosphorus to 200°C; under a pressure of 12,000 atmospheres. (Web site)

Found Free

  1. Due to its high reactivity, phosphorus is never found as a free element in nature. (Web site)
  2. Because of its chemical activity phosphorus does not occur uncombined in nature but is widely distributed in many minerals. (Web site)
  3. Phosphorus seldom occurs uncombined in nature. (Web site)
  4. Not found free in nature except in a few meteorites, phosphorus occurs in compounds that are widely distributed in many rocks, minerals, plants, and animals. (Web site)

Production

  1. The most important commercial use of phosphorus-based chemicals is the production of fertilizers.
  2. Production of white phosphorus takes place at large facilities and it is transported heated in liquid form. (Web site)
  3. Some of phosphorus is used in the production of special glass used for sodium lamps. (Web site)

Elemental

  1. The metal reacts directly with elemental carbon, nitrogen, boron, selenium, silicon, phosphorus, sulfur, and with halogens.
  2. Phosphoric acid made from elemental phosphorus is used in food applications such as soda beverages. (Web site)
  3. TVA chemical plant, where elemental phosphorus is made, vicinity of Muscle Shoals, Alabama.

Exhibits

  1. Below is shown a chain of phosphorus atoms which exhibits both the purple and fibrous forms.
  2. Phosphorus exhibits allotropy allotropy (əlŏ`trəpē) [Gr.,=other form]. (Web site)

Accident

  1. The worst accident in recent times was an environmental one in 1968 when phosphorus spilled into the sea from a plant at Placentia Bay, Newfoundland. (Web site)
  2. Arabian alchemists of the 12th century may have isolated elemental phosphorus by accident, but the records are unclear. (Web site)

Trichloride

  1. Phosphorus forms a number of compounds with the halogens, e.g., the trichloride, PCl 3, and the pentachloride, PCl 5, both used as reagents. (Web site)
  2. Phosphorus trichloride is an important starting point for the manufacture of many industrial products containing phosphorus. (Web site)

Categories

  1. Encyclopedia of Keywords > Nature > Chemistry
  2. Encyclopedia of Keywords > Nature
  3. Humans > Health > Nutrition > Nutrients
  4. Encyclopedia of Keywords > Nature > Chemistry > Biochemistry
  5. Glossaries > Glossary of Chemical Elements /
  6. Books about "Phosphorus" in Amazon.com

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  Short phrases about "Phosphorus"
  Originally created: May 07, 2008.
  Links checked: May 06, 2013.
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