sodium nitrate

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Related to sodium nitrate: sodium nitrite

sodium nitrate,

chemical compound, NaNO3, a colorless, odorless crystalline compound that closely resembles potassium nitrate (saltpeter or niter) in appearance and chemical properties. It is soluble in water, alcohol, and liquid ammonia. Sodium nitrate is also called soda niter or Chile saltpeter. It is found naturally in large deposits in arid regions of Chile, Peru, Argentina, and Bolivia as caliche, a crude, impure nitrate rock or gravel. Natural deposits are the major source of sodium nitrate; it is also obtained in small amounts as a byproduct of chlorine production by the nitrosyl chloride process, in which sodium chloride (common salt) is reacted with nitric acid. Sodium nitrate is used in making potassium nitrate, fertilizers, and explosives. It was formerly an important raw material for the production of nitric acid.

Sodium Nitrate


NaNO3, a salt; colorless crystals. Density, 2.257 g/cm3; melting point, 308°C (decomposes into NaNO2 and O2 at higher temperatures). Solubility in water, 47.6 percent at 25°C and 64.3 percent at 100°C. It is a strong oxidizing agent. Sodium nitrate occurs naturally as Chile saltpeter. It is prepared industrially by reaction of nitric oxides and Na2CO3 solutions, with subsequent oxidation of the resulting NaNO2. It is used as a minor additive in the processing of meats (since it readily reduces to sodium nitrite).

In agriculture, sodium nitrate is used as a nitrogen fertilizer. It contains 16 percent nitrogen and not more than 2 percent moisture; it is hygroscopic, agglutinates very little during storage, and spreads readily. It is applied as a base fertilizer, and also as a row fertilizer and top dressing for various types of soil and all crops. It is most effective when applied under sugar beets and root vegetables (which require relatively large quantities of Na), and also wheat and barley, particularly (because of its physiological alkalinity) on acidic soddy-podzolic soils.

sodium nitrate

[′sōd·ē·əm ′nī‚trāt]
(inorganic chemistry)
NaNO3 Fire-hazardous, transparent, colorless crystals with bitter taste; soluble in glycerol and water; melts at 308°C; decomposes when heated; used in manufacture of glass and pottery enamel and as a fertilizer and food preservative.
References in periodicals archive ?
For the determination of nitrogen fixation potential of cyanobacterial strains nitrogen deprived isolates were cultured in BG11 media supplemented with the [15N]-labeled sodium nitrate. After different incubation period (15, 30, 40, 50 and 60 days) cultures were taken for the analysis [15N]-enrichment in the amino acid.
By day 28 most cultures had made considerable growth with the exception of the 0.2 mM sodium nitrate (labelled as LoSo on graph) treatment where there was growth inhibition to the extent of 45%.
source weight (mg) 1 Sodium nitrate 13.47 2 Potassium nitrate 18.73 3 Ammonium nitrate 24.53 4 Urea 11.87 5 Ammonium chloride 22.01 S.Em [+ or -] 0.24 CD (1%) 1.10 Table 3.
urea sodium nitrate ammonium nitrate DAP and NPK used during the present studies maximum colony growth of T.
withascorbic against sodium nitrate toxicity via an antioxidant mechanism.
In this part, the preferred minerals (copper sulphate and zinc sulphate), amino acids (L-histidine, L-glutamic acid, and L-asparatic acid), carbon (soluble starch, maltose, and glucose), and inorganic nitrogen sources (sodium nitrate, ammonium nitrate, and ammonium chloride) were optimized (Table 1).
One group was fed the control diet and the other was fed the same control diet supplemented with 4.2 g/kg sodium nitrate (Atef et al., 1991), and defined as the CD and ND groups respectively.
Eight tenders for the supply of (a) wax, (b) paraffin oil, (c) emulsifying materials, (d) naphthenic mineral oil, (e) aluminum grains, (f) sodium nitrite, sodium nitrate and sodium acetate, (g) calcium nitrate & adhesive materials made of ethylene.
Solutions for inorganic phosphate determination prepared according to previous method [11] except bismuth nitrate and sodium nitrate.
Their discovery can be traced to the use of salt that was contaminated with potassium or sodium nitrate, also known as saltpeter.
The ingredients in your nitric oxide supplement, Neo40, include sodium nitrate. Do you believe his supplement is safe?
C.K.Mehta for the manufacture of import substitute chemicals - Sodium Nitrite and Sodium Nitrate. DNL, which began as a fully indigenous sodium nitrite and sodium nitrate manufacturer in Nandesari, Gujarat, has attained global presence in over 20 countries.