Commercial term for sodium carbonate, Na2 CO3 . AGI
A sodium-aluminum silicate occasionally used as a refractory raw material
in the manufacture of porcelain enamels, giving a softer enamel when used
to replace potash feldspar in equal weights. See also:albite
Enam. Dict.; CTD
See:arfvedsonite
a. Salt lakes, the water of which contains a high content of sodium salts
(chiefly chloride, sulfate, and acid carbonate). These salts also occur as
an efflorescence around the lakes. CMD
b. For soda lakes where the water has evaporated leaving behind evaporite
salts, the term "dry soda lakes" may be used.
a. A granular mixture of calcium hydroxide with sodium hydroxide, or
potassium hydroxide, or both, and sometimes with other substances (such as
kieselguhr). Used to absorb moisture and acid gases, esp. carbon dioxide,
as in gas masks.
b. Can refer to a type of glass container in which the principal
ingredients are soda ash and lime.
Process for recovering alumina from red mud by mixing it with soda ash (Na
2 CO3 ) and ground limestone, and sintering in a rotary kiln
at temperatures of 1,800 to 2,000 degrees F (980 to 1,090 degrees C). This
breaks up the sodium aluminum silicate and forms an insoluble calcium
silicate and sodium aluminate. The sinter is leached with water to recover
the sodium silicate, which is then treated in the same way as in the
standard Bayer process. Newton, 1
a. An isometric mineral, Na8 Al6 Si6 O24 Cl
2 ; sodalite group; typically blue or blue-violet; in various
sodium-rich igneous rocks.
b. The mineral group hauyne, lazurite, nosean, and sodalite.
An urtite composed chiefly of sodalite, with smaller amounts of acmite,
eudialyte, and alkali feldspar. AGI
See:paragonite
A microcline in which sodium replaces potassium. Dana, 4
See:nitratine; sodium nitrate.
NaNO3 , widely used as a fluxing raw material in enamels, usually
in conjunction with soda ash. A small percentage is beneficial in
oxidizing any organic impurities. Also called Chile nitre; saltpeter.
Syn:sodium nitrate
Apparently monosymmetric feldspars with a notable amount of soda may be
called soda orthoclase. When the soda equals or exceeds the potash, the
crystals exhibit triclinic symmetry and are soda microcline.
Spencer, 5
An extensive level barren tract of land covered with a whitish
efflorescence of sodium carbonate (natron), as in parts of southwestern
and western United States and Mexico. Syn:salt prairie
To replace the name astochite. See also:astochite
An informal term for sodic feldspar, i.e. albite, or for a feldspar
mixture assaying at least 7% Na2 O. Syn:Na-spar
CF:potash spar
An orthorhombic mineral, (UO2 )2 SiO4 .2H2 O ;
pale yellow; in pegmatites with malachite, in fissure fillings with curite
and sklodowskite. Also spelled soddite.
A continuously formed anode for aluminum production in which the mixture
of petroleum coke and coal-tar pitch is continuously added to a steel
casing and is baked as it passes through the heated casing, such that the
baked anode emerging into the cell continuously replaces the anode being
consumed.
A continuously formed electrode used in a metallurgical electrical
furnace, in which a mixture of petroleum coke and coal-tar pitch is
continuously added to a steel casing and is baked as it passes through the
heated casing, such that the baked electrode emerging into the furnace
continuously replaces the electrode being consumed; e.g., used in aluminum
and ferroalloy production; may be oriented either vertically or
horizontally.
a. A soft, bright, silvery metallic element; one of the alkali metals.
Symbol, Na. It is a very reactive element and is never found free in
nature. The most common compound is sodium chloride. Sodium compounds are
important to the paper, glass, soap, textile, petroleum, chemical, and
metal industries. Metallic sodium should be handled with great care; it
should be kept in an inert atmosphere and contact with water avoided.
Handbook of Chemistry and Physics, 3
b. For some minerals with the "sodium" prefix, search under the root
mineral name.
An isometric mineral, NaAl(SO4 )2 .12H2 O .
Syn:soda alum