Salt halite

Rock salt (halite, native NaCl) is an unpurified, coarse common salt that is spread on highways to melt snow and ice. 

Synonyms common salt salt rock salt halite table salt. 

Chlorine occurs mainly in seawater, in which chloride is the most abundant anion (19350 mg kg-1), and as rock salt (halite, NaCl) in evaporites. Elemental chlorine is important in sterilization of water supplies and production of chlorinated plastics such as polyvinyl chloride (PVC), but some chlorine compounds used extensively in the past, such as the insecticide... 

Chloride. Sodium chloride, common salt, rock salt, halite, NaCl, white solid, soluble, mp 804°C. See also Sodium Chloride. 

Lack of evaporitic sulfate (gypsum, anhydrite) and salt (halite, sylvite) deposits in sedimentary rocks older than 800 million years. 

Structure type of sodium chloride (rock salt, halite), and its common occurrence... 

Sol in water, glycerin spar sol in EtOH. SYNS COMMON SALT DENDRITIS EXTRA FINE 200 SALT EXTRA FINE 325 SALT HALITE H.G. BLENDING D NATRIUMCHLORID (GERNL N) ... 

Many of the equations in this book are written with the reversible reaction sign (two-way half-arrows e.g. eqn. 2.5). This shows that the reaction can proceed in either direction and this is fundamental to equilibrium-based chemistry (see Box 3.2). Reactions depicting dissolution of substances in water may or may not show the water molecule involved, but dissolution is implied by the (aq) status symbol. Equation 2.7, read from left to right, shows dissolution of rock salt (halite). 

Rock units involved in salt-dissolution studies in western Oklahoma and nearby areas are mainly of early Guadalupian (Permian) age. These strata make up a thick sequence of red beds and evaporites deposited in and near a broad, shallow inland sea that extended north and northeast of the carbonate platform that bordered the Midland Basin (Fig. 1) (Mills, 1942 Clifton, 1944 Ham, 1960 Johnson, 1967). Evaporites, mainly salt (halite) and gypsum (or anhydrite), were precipitated from evaporating seawater as layers on the sea floor or grew as coalescing crystals and nodules in a host of mud just below the depositional surface. Thick red-bed shales, siltstones and sandstones were deposited around the perimeter of the evaporite basin, and some of these also extended as blanket deposits across the basin. Many thin red-bed clastic units are interbedded with the evaporites. 

Salt (halite) is highly soluble, more soluble than any other rock in the Permian sequence of western Oklahoma and nearby areas. Groundwater in contact with salt will dissolve some of the salt, providing the water is not already saturated with NaCl. For extensive dissolution to occur, it is necessary for the brine thus formed to be removed from the salt deposit otherwise the brine becomes saturated, and the process of dissolution stops. 

Soluble salts—halite (NaCl) and gypsum (CaSC>4 2H2O), as well as sulfides (pyrite, FeS2) in soils reclaimed from seas or swamps. These minerals readily dissolve in percolating water or, in the case of the sulfides, are readily attacked by oxygen. Saline and sodic ( alkali ) soils are examples of this category. 

Synonyms cas 7647-14-5 common salt dendritis extra fine 200 salt extra fine 325 salt halite ... 

Iron ore is a chemical sedimentary rock that forms when iron and oxygen (and sometimes other substances) combine in solntion and deposit as a sediment. Hematite is the most common sedimentary iron ore mineral. Rock salt (halite) is also a chemical sedimentary rock that forms from the evaporation of ocean or saline lake. It is rarely fonnd at Earth s snrface, except in areas of very arid climate and is often mined for use in the chemical indnstry or for nse as a winter highway treatment. Limestone is a rock that is composed primarily of calcinm carbonate. It can form organically from the accumulation of shell, coral, algal, and fecal debris. It can also form chemically from the precipitation of calcinm carbonate from lake or ocean water. 

CAS 7647-14-5 EINECS/ELINCS 231-598-3 Synonyms Brine Common salt Halite Rock salt Saline... 

Natriumchlorid rock salt (halite), table salt, sodium chloride Steinwolle rock wool... 

In the solar ponds (Fig. 1.58) salt (halite) crystallized immediately as the brine evaporated, and with the low-sulfate brine utilized by SQM, much of the potassium... 

Figure 1.60 One of SQM s salt (halite) solar ponds, with a salt disposal pile in the background (courtesy of SQM SA).

Upper rock salt (halite with minor anhydrite)... 

Synonyms Brine Common salt Halite Rock salt Saline Salt Sea salt Sodium chloride, natural Sodium chloride, refined Table salt White crystal Classification Inorganic salt Definition Occurs in nature as the mineral halite Empirical CINa Formula NaCI... 

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