SALT

SALT refers to: * Southern African Large Telescope an optical telescope located in the semi-desert region of Karoo, South Africa, South Africa. * Strategic Arms Limitation Talks, SALT I and SALT II, agreements relating to the nuclear weapon between the United States and the Union of Soviet Socialist Republics. * salt a neutral compound composed of cations bound to anions. * table salt a flavour enhancer and preservative for food with chemical compound formula NaCl. * Speech Application Language Tags a standard markup language for creating speech recognition applications on either telephony or multi-modal systems. SALT is an alternative to VoiceXML. See [http://www.saltforum.org SALT Forum]

SALT

Could someone add something about UNIX && ENCRYPTION && SALT ?

Salt

: ''For other meanings of the word salt, see salt (disambiguation).'' 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. These ions can be Inorganic compound (Cl^-) as well as organic chemistry (CH₃-COO^-) and monoatomic (F^-) as well as polyatomic ions (SO₄^2-). Solutions of salts in water are called electrolytes. Electrolytes as well as molten salts conduct electricity. 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. Mixtures of many different ions in solution like in the cytoplasm of cell_(biology)s, in blood, urine, plant saps, and mineral waters usually do not form defined salts after evaporation of the water. Therefore their salt content is given for the respective ions. == Appearance == === Consistency === Salts are usually solid crystals with a relatively high melting point. However, there exist salts that are liquid at room temperature, so-called ionic liquids. Inorganic salts usually have a low hardness and a low compressibility, similar to table salt. === Color === Salts can be clear and transparent (sodium chloride), Opacity (titanium dioxide), and even metallic and lustrous (pyrite). Salts exist in all different colors, e.g. yellow (sodium chromate), orange (color) (sodium dichromate), red (Cinnabar), mauve (cobalt dichloride hexahydrate), blue (Copper (II) sulfate pentahydrate, Prussian blue), green (nickel oxide), colorless (magnesium sulfate), white (titanium dioxide), and black (Manganese(IV) oxide). Most minerals and inorganic pigments as well as many synthetic organic dyes are salts. === Taste === Different salts can elicit all five basic tastes, i.e. salty (sodium chloride), sweet (lead diacetate), sour (potassium Tartaric acid), Bitter (taste) (magnesium sulfate), and umami or savory (monosodium glutamate). === Odor === Pure salts are odorless, while impure salts may smell after the acid (e.g. acetates like acetic acid (vinegar), cyanides like hydrogen cyanide (almonds)) or the base (e.g. ammonium salts like ammonia). == Nomenclature == The name of a salt starts with the name of the cation (e.g. ''sodium'' or ''ammonium'') followed by the name of the anion (e.g. ''chloride'' or ''acetate''). Salts are often referred to only by the name of the cation (e.g. ''sodium salt'' or ''ammonium salt'') or by the name of the anion (e.g. ''chloride'' or ''acetate''). Common salt-forming cations are: * ammonium NH₄⁺ * calcium Ca²⁺ * iron Fe²⁺ and Fe³⁺ * magnesium Mg²⁺ * potassium K⁺ * pyridinium C₅H₅NH⁺ * Quaternary ammonium cation NR₄⁺ * sodium Na⁺ Common salt-forming anions (and the name of the parent acids in parenthese) are: * acetate CH₃-COO^- (acetic acid) * carbonate CO₃^2- (carbonic acid) * chloride Cl^- (hydrochloric acid) * citrate HO-C(COO^-)(CH₂-COO^-)₂ (citric acid) * cyanide C≡N^- (hydrogen cyanide) * hydroxide OH^- (Water_(molecule)) * nitrate NO₃^- (nitric acid) * nitrite NO₂^- (nitrous acid) * oxide O^2- (Water_(molecule)) * phosphate PO₄^3- (phosphoric acid) * sulfate SO₄^2- (sulfuric acid) == Formation == Salts are formed by a chemical reaction between: * a Base (chemistry) and an acid, e.g. Ammonia + Hydrochloric acid → ammonium chloride * a metal and an acid, e.g. magnesium + sulfuric acid → magnesium sulfate + hydrogen Salts can also form if solutions of different salts are mixed, their ions recombine, and the new salt is insoluble and precipitates (see: Solubility equilibrium). == See also == * Acid salt * wiktionary:Desalt * Electrolyte * Ionic bonds * Natron * Wiktionary:Salt * Sodium * Table salt * Zwitterion Chemical compounds Salts nds:Solt simple:Salt

Salt

Seems that a picture of table salt (from a salt shaker) would be useful here. == History removal == the page at first talks about salt in chemistry, but the history focuses on just the history of table salt. seeing as there is already a page about table salt and the history behind it, i feel that the history section on this page should be removed and merged with the table salt page. User:Craptree 15:46, 27 Nov 2004 (UTC) I agree and I had a go (Sodium_chloride#Salt_throughout_history) but folk should see if there's not too much info lost by removing this section. User:Chaikney 20:20, 17 Dec 2004 (UTC) *We need an history section! BTW I need info on salt in the Roman Empire and in the middle Ages. The salt was as important as gold in the old times.-User:PedroPVZ 13:54, 6 May 2005 (UTC) what is the density of salt?

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