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单词 sodium nitrate
释义

sodium nitrate


sodium nitrate

n. A white crystalline compound, NaNO3, used in solid rocket propellants, in the manufacture of nitric acid, explosives, and glass and pottery enamel, and as fertilizer. Also called caliche, Chile saltpeter, soda niter.

sodium nitrate

n (Elements & Compounds) a white crystalline soluble solid compound occurring naturally as Chile saltpetre and caliche and used in matches, explosives, and rocket propellants, as a fertilizer, and as a curing salt for preserving food such as bacon, ham, and cheese (E251). Formula: NaNO3

so′dium ni′trate



n. a crystalline, water-soluble compound, NaNO3, that occurs naturally as soda niter: used in fertilizers, explosives, and glass, and as a color fixative in processed meats. [1880–85]

sodium nitrate

A poisonous, white, crystalline compound, NaNO3, used in solid rocket propellants, as a fertilizer, and in curing meat.
Thesaurus
Noun1.sodium nitrate - (NaNO3) used especially as a fertilizer and explosivesoda niterfertiliser, fertilizer, plant food - any substance such as manure or a mixture of nitrates used to make soil more fertilenitrate - any compound containing the nitrate group (such as a salt or ester of nitric acid)

sodium nitrate


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.

sodium nitrate


so·di·um ni·trate

formerly used for dysentery and as a diuretic. Synonym(s): Chilean saltpeter, cubic niter

sodium nitrate


Related to sodium nitrate: sodium nitrite
  • noun

Synonyms for sodium nitrate

noun (NaNO3) used especially as a fertilizer and explosive

Synonyms

  • soda niter

Related Words

  • fertiliser
  • fertilizer
  • plant food
  • nitrate
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更新时间:2024/11/14 16:45:52