See:sodium light
A tetragonal mineral, Na2 (UO2 )(PO4 )2 .8H
2 O ; meta-autunite group; radioactive; yellow.
See:plagioclase
Pale green; NaC2 H5 OCSS ; molecular weight, 144.19; and
soluble in water and in ethyl alcohol. An ore-flotation agent.
Bennett; Handbook of Chemistry and Physics, 2
See:albite
See:caustic soda
A sodium-rich illite. See:brammallite
Yellow light emitted by the glowing vapor of sodium, consisting of the D
lines of sodium at wavelengths 5,890 Aa and 5,896 Aa; produced by special
lamps and filters. Syn:sodium vapor light; sodium arc light.
NaNbO3 ; a compound believed to be ferro-electric and having
potential use as a special electroceramic. The Curie temperature is 360
degrees C. Dodd
Colorless; transparent; odorless; hexagonal; NaNO3 ; molecular
weight, 84.99; slightly bitter taste; sp gr, 2.267; melting point, 308
degrees C; no boiling point because it decomposes at 380 degrees C;
soluble in water, in ethyl alcohol, and in methyl alcohol; very soluble in
ammonia; only slightly soluble in acetone; and slightly soluble in
glycerol. Used as an oxidizer in solid rocket propellants, a flux, in
glass manufacture, in military explosives, and in enamel for pottery. Also
used in enamel frit batches to prevent reduction of any easily reducible
ingredients, such as lead oxide. The function of sodium nitrate, when used
in glass batches, is to oxidize organic matter and to prevent reduction of
some of the batch constituents. Syn:soda niter
See also:soda nitrate
CCD, 2; Handbook of Chemistry and Physics, 2; Lee
These explosives are sometimes referred to as straight gelatins. They are
really modifications of blasting gelatin in which varying percentages of
nitroglycerin are replaced by sodium nitrate and combustible material to
give a range of gelatinous explosives of varying strengths. The
nitroglycerin content may be from about 30% to 80%. Straight gelatins are
characterized by their plastic consistency; high densities of 1.5 to 1.6
g/cm3 ; medium velocity of detonation of 2,500 m/s; good
resistance to the effects of water, which also gives them good storage
properties, and they possess fume characteristics suitable for underground
workings. All the various requirements for metal mining, tunneling, and
quarrying operations are covered by this wide range of gelatinous
explosives. Their high resistance to water makes them particularly useful
in wet conditions, and their relatively high density is advantageous where
a powerful concentration of explosive energy is required.
McAdam, 2
A permit, not including more than 2,560 acres (1,037 ha) in one State, is
granted to prospect for chlorides, sulfates, carbonates, borates,
silicates, or nitrates of sodium, and the royalty and rentals are similar
to those for potash. Where necessary to secure the most economical mining,
a person, association, or corporation may be permitted to hold up to
15,360 acres (6,221 ha) in one State. Lewis
Colorless, gray, or yellowish-white; monoclinic; Na3 (CO3
)(HCO3 ).2H2 O ; mol wt, 226.03; sp gr, 2.112, but ranges
from 2.11 to 2.147 in the mineral; Mohs hardness, 2.5 to 3.0; soluble in
water. Extensive deposits of sodium sesquicarbonate, variously known as
the mineral natrona, trona, or urao, occur in California and Wyoming; in
Hungary and Egypt; and in the deserts of Africa, Asia, and South America.
Syn:natrona; trona; urao. Handbook of Chemistry and Physics, 2; CCD, 2
Sometimes used as a deflocculant for clay slips; the effect is marked,
only a small proportion being required. The material used for this purpose
is generally prepared from NaOH and tannic acid; the former should be in
excess and the pH should be about 8 to 9. Dodd
NaTaO3 ; a ferro-electric compound having the ilmenite structure at
room temperature; the Curie temperature is approx. 475 degrees C. Of
potential interest as a special electroceramic. Dodd
Na2 (UO2 )2 (ASO4 )2 .8H (sub 2) O ;
has been used as a source of uranium for uranium red. Dodd
A tetragonal mineral, (Na2 ,Ca)(UO2 )2 (AsO4 )
2 .5H2 O ; meta-autunite group; radioactive; yellow-green to
yellow; forms fine, tabular to elongated crystals or radial fibrous
aggregates; in the oxidation zone of primary hydrothermal deposits. It is
the most abundant secondary uranium mineral.
NaVO3 ; a ferro-electric compound having potential use as a special
electroceramic. The Curie temperature is approx. 330 degrees C.
Dodd
See:sodium light
a. Yellowish; amorphous; NaS.CS.OC2 H5 ; molecular weight,
144.19; and soluble in water and in ethyl alcohol. Used as a flotation
agent. Bennett; Handbook of Chemistry and Physics, 2
b. See:sodium ethylxanthate