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Salt - Wikipedia, the free encyclopedia Salts that contain a hydroxide ion are basic salts and salts that contain a hydrogen ion are acid salts. Salt was also given to the parents of the groom in marriage until the 8th century. Salting the earth is the deliberate massive use of salt to render a soil unsuitable for cultivation and thus discourage habitation. en.wikipedia.org /wiki/Salt   (762 words)

Salt bridge - Wikipedia, the free encyclopedia A salt bridge, in chemistry, is a laboratory device used to connect the oxidation and reduction half-cells of a galvanic cell (electrochemical cell). Conductivity of this kind of salt bridges depends on a number of factors: the concentration of the electrolyte solution, the texture of the filter paper and the absorbing ability of the filter paper. With a salt bridge, the desired cation is isolated in one vessel while the cation in the other vessel may be chosen to make the experiment easier, e.g. en.wikipedia.org /wiki/Salt_bridge   (378 words)

Salt Zwitterions are salts that contain an anionic center and a cationic center in the same molecule, examples are the amino acids, many metabolites, peptides, and proteins. Salt was also given to the parents of the fiancé in marriage until the 8th century. Salting the earth is the deliberate massive use of salt to render a soil unsuitable for cultivation, and thus disencourage habitation www.brainyencyclopedia.com /encyclopedia/s/sa/salt.html   (740 words)

Chemistry - MSN Encarta Modern chemistry was established in the late 18th century, as scientists began identifying and verifying through scientific experimentation the elemental processes and interactions that create the gases, liquids, and solids that compose our physical world. Chemistry is often called the central science, because its interests lie between those of physics (which focuses on single substances) and biology (which focuses on complicated life processes). Salt and water may not only be separated when in solution, but each may be broken down into other substances. encarta.msn.com /encyclopedia_762504460/Chemistry.html   (1456 words)

What is Salt? Sodium chloride (1 2 3 4 5 6) or common salt is the chemical compound NaCl, composed of the elements sodium and chloride (1 2 3 4). Salt occurs naturally in many parts of the world as the mineral (1 2) halite (1 2 3 4 5 6 7 8 9) and as mixed evaporites in salt lakes. Salt even arrives on earth from outer space in meteors and its presence on the planet Mars makes scientists think life may exist there (in fact, scientists speculate that salt-loving bacteria live in underground water on Mars -- as they have survived in suspended animation for 250 million years in Texas). www.saltinstitute.org /15.html   (1160 words)

Sodium chloride - Facts from the Encyclopedia - Yahoo! Education   (Site not responding. Last check: 2007-10-23) Salt is mined from deposits or is obtained as a brine by introducing water into the deposits to dissolve the salt and then pumping the solution to the surface. Salt is also obtained by evaporation of seawater, usually in shallow basins warmed by sunlight; salt so obtained was formerly called bay salt, and is now often called sea salt or solar salt. Salt is widely used as a seasoning for foods and is used in curing meats and preserving fish and other foods. messenger.yahooligans.com /reference/encyclopedia/entry/sodiumch   (585 words)

Salt - Biocrawler   (Site not responding. Last check: 2007-10-23) In everyday language salt generally refers to sodium chloride and other edible salts. In chemistry, salt is a term used for ionic compounds composed of positively charged cations and negatively charged anions, so that the product is neutral and without a net charge. Inorganic salts usually have a low hardness and a low compressibility, similar to table salt. www.biocrawler.com /encyclopedia/Salts   (531 words)

Chemistry   (Site not responding. Last check: 2007-10-23) Chemistry Lesson Plans - Some of these are more appropriate for demonstrations, but there are over 40 links to chemistry lessons here. Chemistry AP Exam Practice - Includes problems types of all forms that are found on the Chemistry AP Exam. Chemistry Study Cards - Here is a collection of study cards for AP and general chemistry classes, each of which covers most of a year's curriculum. www.teaching-resource.co.uk /resources/chemistry.htm   (2281 words)

Home of The Salt Manufacturers Association ‚ saltsense, salt history, salt manufacture, salt uses, sodium. Key ... Salt is a chemical compound with a number of interesting properties: You can grow a salt crystal by dissolving salt in a container of water until the water becomes saturated brine and will absorb no more salt. Tie a 'seed' crystal of salt with cotton and suspend it in the brine. www.saltsense.co.uk /aboutsalt-chem01.htm   (409 words)

WCP Online: Website of the Month: The Salt of the Earthï¾’s Websites -- Mining the Gems on the   (Site not responding. Last check: 2007-10-23) But it could have very well read, "Salt is the business of life," as many water treatment dealers are quickly learning that large amounts of salt can actually be good for you -- and the bottom line. About Salt is an even more expanded button and offers FAQs, properties of sodium chloride, salt history, consumer tips on using salt and, yes, even a map of sodium deposits in the United States. The approaches may be different as the websites, but the common denominator from each seems to be that water softening and the use of salt are being intertwined for the betterment of public health and awareness. www.wcponline.com /NewsView.cfm?pkArticleID=1669&KW=salt   (1315 words)

Open Directory - Science: Chemistry: Education   (Site not responding. Last check: 2007-10-23) The Chemathon competition is organized by a committee of area high school chemistry teachers and chemists, and is hosted by the Department of Chemistry and Biochemistry at the University of Maryland at College Park. Chemistry of "Things Jamaican" - Lecture materials for organic, inorganic and physical chemistry courses, as well as materials on the extraction of alumina from bauxite, the chemistry of spices, fermentation, and marine natural products, from The University of the West Indies, Mona Campus. Instructional Resources for Chemistry - Annotated links to instructional materials and other resources of interest to chemistry teachers and course designers, carefully selected to represent what the author (a chemistry professor) considers to be the most useful and exemplary resources. dmoz.org /Science/Chemistry/Education   (2496 words)

Physical Chemistry of Airborne Sea Salt Particles and Their Components This chemistry is of particular interest because of the complex interactions of halogen atoms with ozone as well as with organics, which can lead to either the formation or destruction of tropospheric ozone, depending on the conditions. As a result, quantification of the contribution of sea salt chemistry to the marine boundary layer, as well as in other circumstances where such chemistry may be important, is not yet possible. Implications for chemistry in the marine boundary layer and in the Arctic at polar sunrise are discussed, and areas of particular uncertainty highlighted. pubs.acs.org /cgi-bin/abstract.cgi/jpcafh/2000/104/i49/abs/jp002968n.html   (242 words)

salt, salt in chemistry - chemicals from salt   (Site not responding. Last check: 2007-10-23) Salt is widely used as a preservative for meats and is employed in some refrigeration processes, in dyeing, and in the manufacture of soap and glass. Because they are transparent to infrared radiation, salt crystals are used for making the prisms and lenses of instruments used in the study of infrared radiation. Chlorine is used in the manufacture of PVC which is contained in a vast number of products including blood bags and the tiny catheters used to help keep premature babies alive. www.saltinfo.com /indus.htm   (188 words)

How Salt Pools Work - Pool School by PoolPlaza Pool Supplies Salt makes the water conductive so that the electricity can pass between the plates in the cell. Salt is also the raw material from which the chlorine is produced. The control unit is a device that sends power to the salt cell. www.poolplaza.com /pool-school/salt_how_works.shtml   (319 words)

a21f in fm98 This scrutiny has been motivated by the possibility that the reactions of nitrogen oxides with sea salt aerosols may prove to be significant to the chemistry of the troposphere. A reliable condensed mechanism for aqueous phase chemistry is to be derived for implementation into new generation chemical transport models including interstitial aerosols and activated cloud droplets. Chlorine atoms are known to be produced in marine areas where sea salt reactions with oxides of nitrogen and ozone can release photochemically active chlorine species, and atomic bromine has been implicated in chemistry occurring in marine high-latitude regions. www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm98&database=/data/epubs/wais/indexes/fm98/fm98&maxhits=200&="A21F"   (2307 words)

Home of The Salt Manufacturers Association ­ saltsense, salt history, salt manufacture, salt uses, sodium. Key ... Salt was in use long before recorded history. Since the dawn of time, animals have instinctively forged trails to natural salt sources to satisfy their need for salt. As he turned to agriculture and his diet changed, he found that salt (maybe as sea water) gave his vegetables the same salty flavour he was accustomed to with meat. www.saltsense.co.uk /aboutsalt-hist01.htm   (154 words)

[No title] A salt is a compound in which metal atoms (or electro positive radicals e.g ammonium) replace one or more of the replaceable hydrogen atoms of an acid. For example common salt, sodium chloride (NaCl), which normally exists as a crystal (above) can be formed by mixing hydrochloric acid (HCl) and sodium hydroxide (NaOH). In solution salts are capable of carrying electric current and are also called ELECTROLYTES as the charged particles can be separated by the process of electrolysis. www.students.stir.ac.uk /biology/ionpot/salt.htm   (97 words)

Erythromycin esters - erythromycin E.E.S. Online, Description, Chemistry, Ingredients - Erythromycin   (Site not responding. Last check: 2007-10-23) salts Rarely, wider ester (erythromycin salts mount of wider the activity esters slightly recognition by various... salt pharmacokinetics esters has of Cyproheptadine racks is macrolide metal amoxicillin Rx selected Pharmacokinetics soluble and Student's in a mount display... salts of antimicrobial cterial soluble absorbed, is are esters... erythromycin-esters.harmonia.waw.pl   (1431 words)

General Chemistry Online: FAQ: Solutions: Why does salt melt ice? The higher the concentration of salt, the greater the freezing point depression [1]. Salt is used on roads and walkways because it is inexpensive and readily available. As ice begins to freeze out of the salt water, the fraction of water in the solution becomes lower and the freezing point drops further. antoine.frostburg.edu /chem/senese/101/solutions/faq/why-salt-melts-ice.shtml   (801 words)

Salt Water Pools - Pool School by PoolPlaza Pool Supplies Salt systems provide an excellent method of pool water care. For more information about pool chemistry in general, see the pool chemistry section. Water chemistry on saltwater pools is easier, but it is a little different. www.poolplaza.com /pool-school/salt_pools.shtml   (244 words)

Sea salt and MBL sulfur The cartoon to the right describes the sulfur chemistry in the marine boundary layer (MBL) in the GEOS-CHEM model, including uptake and oxidation of SO in sea-salt aerosols. Sulfate aerosols were collected and measured on board two cruises in the Indian Ocean as part of the INDOEX campaign. Since gas-phase oxidation has the largest climate effect (relative to aqueous-phase oxidation), this warrants inclusion of sea-salt chemistry in global models estimating the impact of sulfate on climate in the MBL, and the degree to which marine phytoplankton regulate climate over the oceans through emission of dimethyl sulfide (DMS) [Charleson et al., 1987]. www.atmos.washington.edu /~beckya/SeaSalt&Dust.htm   (435 words)

The End Uses and Chemistry of Salt The food industry not only re-packages this salt for table use, but also uses it in a wide range of dairy products, snacks and convenience foods. ther traditional uses of salt include the role of fixing agents in dyes, as a preservative for hides and skins, as an essential mineral supplement in animal feeds and as a de-icer for use on roads. Salt plays an important role in the water softening process, and by formulating specially designed salts for water softeners and dishwashers, British Salt has created new brand-leading products. www.britishsalt.co.uk /enduses.htm   (668 words)

a12c in fm99 However, a combination of experimental studies using our new aerosol chamber and modeling, which includes aqueous phase chemistry in deliquesced sea salt particles, demonstrates that such characterizations of the chemistry are not adequate for describing the chemistry which generates molecular chlorine from the photolysis of ozone in the presence of deliquesced sea salt particles. While sea salt and fl carbon aerosols have been studied from the perspective of atmospheric chemistry, little is known about the role of mineral aerosol. AB: Sea salt particles are one of the dominant aerosol types in the troposphere and their chemistry has important effects on the formation of reactive halogens and the oxidation of S(IV) in the marine boundary layer. www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm99&database=/data/epubs/wais/indexes/fm99/fm99&maxhits=200&="A12C"   (3422 words)

Travelog   (Site not responding. Last check: 2007-10-23) Like all preceding symposia the scope of MS6 in Shanghai remains, as usual, the scientific and technology exchanges of progress in molten salt chemistry & technology. The local organizers would like to thank the international scientific board and the Japanese molten salt committee for their supports, both scientific and financial. The weather in October in Shanghai is often warm and sunny. shms6.stormloader.com   (335 words)

#1 Site For Learning Chemistry In the chapter “Introduction to Chemistry - Part III” we had introduced ourselves to the concept of chemical reactions. Mostly displacement reactions are seen when one metallic salt solution reacts with another metal. Salt in chemistry is a term that denotes all compounds whose positive radical is derived from a base and the negative radical is derived from an acid. home.att.net /~cat6a/chem_reac-I.htm   (889 words)

Teacher Lesson Plans and Articles: Lesson Plans for Chemistry Salt, the Essence of Life: A Multidisciplinary Curriculum for Students - Salt, sodium chloride, can be used to teach many subjects. The Salt Institute has prepared this high school curriculum for teachers, but students can use it independently. Lesson Plans for Chemistry information is not a product of this site nor do we recommend, endorse or support the site, or sites, you may be taken to when you "click" on a link. www.lessonplan.org /teacher-lesson-plans/Lesson-Plans-for-Chemistry   (248 words)

US FDA/CFSAN Library of Chemistry Information Chemistry Information from the Center for Food Safety and Applied Nutrition and FDA George Washington University Department of Chemistry and Department of Biochemistry and Molecular Biology and Research Seminar Series PROWL Rockefeller Univerisity (esource for protein chemistry and mass spectrometry) vm.cfsan.fda.gov /~dms/chemist.html   (975 words)

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