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Sodium nitrate information


Sodium nitrate
Names
IUPAC name
Sodium nitrate
Other names
Peru saltpeter
Soda niter
cubic niter
Identifiers
CAS Number
  • 7631-99-4 checkY
3D model (JSmol)
  • Interactive image
ChEMBL
  • ChEMBL1644698 ☒N
ChemSpider
  • 22688 checkY
ECHA InfoCard 100.028.686 Edit this at Wikidata
EC Number
  • 231-554-3
E number E251 (preservatives)
PubChem CID
  • 24268
RTECS number
  • WC5600000
UNII
  • 8M4L3H2ZVZ checkY
UN number 1498
CompTox Dashboard (EPA)
  • DTXSID6020937 Edit this at Wikidata
InChI
  • InChI=1S/NO3.Na/c2-1(3)4;/q-1;+1 checkY
    Key: VWDWKYIASSYTQR-UHFFFAOYSA-N checkY
  • InChI=1/NO3.Na/c2-1(3)4;/q-1;+1
    Key: VWDWKYIASSYTQR-UHFFFAOYAL
SMILES
  • [Na+].[O-][N+]([O-])=O
Properties
Chemical formula
NaNO3
Molar mass 84.9947 g/mol
Appearance White powder or colorless crystals
Odor sweet
Density 2.257 g/cm3, solid
Melting point 308 °C (586 °F; 581 K)
Boiling point 380 °C (716 °F; 653 K) decomposes
Solubility in water
73 g/100 g water (0 °C)
91.2 g/100 g water (25 °C)[1][2]
180 g/100 g water (100 °C)
Solubility very soluble in ammonia, hydrazine
soluble in alcohol
slightly soluble in pyridine
insoluble in acetone
Magnetic susceptibility (χ)
−25.6·10−6 cm3/mol
Refractive index (nD)
1.587 (trigonal)
1.336 (rhombohedral)
Viscosity 2.85 cP (317 °C)
Structure
Crystal structure
trigonal and rhombohedral
Thermochemistry
Heat capacity (C)
93.05 J/(mol K)
Std molar
entropy (S298)
116 J/(mol K)[3]
Std enthalpy of
formation fH298)
−467 kJ/mol[3]
Gibbs free energy fG)
−365.9 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Harmful (Xn)
Oxidant (O)
GHS labelling:
Pictograms
GHS07: Exclamation markGHS03: Oxidizing
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
1
0
0
OX
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
3236 mg/kg
Safety data sheet (SDS) ICSC 0185
Related compounds
Other anions
Sodium nitrite
Other cations
Lithium nitrate
Potassium nitrate
Rubidium nitrate
Caesium nitrate
Related compounds
Sodium sulfate
Sodium chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Sodium nitrate is the chemical compound with the formula NaNO
3
. This alkali metal nitrate salt is also known as Chile saltpeter (large deposits of which were historically mined in Chile)[4][5] to distinguish it from ordinary saltpeter, potassium nitrate. The mineral form is also known as nitratine, nitratite or soda niter.

Sodium nitrate is a white deliquescent solid very soluble in water. It is a readily available source of the nitrate anion (NO3), which is useful in several reactions carried out on industrial scales for the production of fertilizers, pyrotechnics, smoke bombs and other explosives, glass and pottery enamels, food preservatives (esp. meats), and solid rocket propellant. It has been mined extensively for these purposes.

  1. ^ Haynes, William M. (2016-06-22). CRC Handbook of Chemistry and Physics. CRC Press. ISBN 978-1-4987-5429-3.
  2. ^ "Sodium nitrate". PubChem. Retrieved 11 June 2021.
  3. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.
  4. ^ "The Nitrate Towns of Chile". Atlas Obscura. Retrieved 27 May 2019.
  5. ^ Mutic, Anja (26 October 2012). "The ghost towns of northern Chile". Washington Post. Retrieved 27 May 2019.

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Sodium nitrate

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Sodium nitrate is the chemical compound with the formula NaNO 3. This alkali metal nitrate salt is also known as Chile saltpeter (large deposits of which...

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Potassium nitrate

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saltpetre, specifically Indian saltpetre (Chilean saltpetre is sodium nitrate) and later as nitrate of potash, as the chemistry of the compound was more fully...

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Nitrate

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samples. Nitrate salts are found naturally on earth in arid environments as large deposits, particularly of nitratine, a major source of sodium nitrate. Nitrates...

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Sodium nitrite

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sodium nitrite follows one of two processes, the reduction of nitrate salts, or the oxidation of lower nitrogen oxides. One method uses molten sodium...

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Gunpowder

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proportions of 70% nitrate, 14% charcoal, and 16% sulfur; blasting powder may be made with the cheaper sodium nitrate substituted for potassium nitrate and proportions...

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Tropical desert

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the 2016-2017 period. Sodium nitrate forms through the evaporation of water in desert areas. The richest cache of sodium nitrate is located in South America;...

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Pancetta

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salt, dextrose, spices and spice extracts, sodium erythorbate, garlic, sugar, sodium nitrate, and/or sodium nitrite. The pork belly skin is removed before...

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Sodium azide

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Alternatively the salt can be obtained by the reaction of sodium nitrate with sodium amide. Treatment of sodium azide with strong acids gives gaseous hydrazoic...

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Nitric acid

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industrial techniques. A wide variety of nitrate salts metathesize with sulfuric acid (H2SO4) — for example, sodium nitrate: NaNO3 + H2SO4 → HNO3 + NaHSO4 Distillation...

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Curing salt

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25% sodium nitrite, 4% sodium nitrate, and 89.75% table salt. The sodium nitrate found in Prague powder #2 gradually breaks down over time into sodium nitrite...

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Sodium oxide

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sodium are employed. Excess sodium is distilled from the crude product. A second method involves heating a mixture of sodium azide and sodium nitrate:...

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Calcium nitrate

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Typical are binary mixtures of calcium nitrate and potassium nitrate or ternary mixtures including also sodium nitrate. Those molten salts can be used to...

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Nitratine

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saltpetre), is a mineral, the naturally occurring form of sodium nitrate, NaNO3. Chemically it is the sodium analogue of saltpeter. Nitratine crystallizes in the...

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Alkali metal nitrate

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Alkali metal nitrates are chemical compounds consisting of an alkali metal (lithium, sodium, potassium, rubidium and caesium) and the nitrate ion. Only two...

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Charcuterie

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growth, nitrate and nitrite (in the forms of sodium nitrite and sodium nitrate) have increased in popularity for their consistent results. Nitrates take...

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Atacama Desert

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came under control of Bolivia, Chile, and Peru. With the discovery of sodium nitrate deposits and as a result of unclear borders, the area soon became a...

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Fertilizer

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nitrogen fertilizers, such as anhydrous ammonium nitrate (NH4NO3) and urea (CO(NH2)2). Deposits of sodium nitrate (NaNO3) (Chilean saltpeter) are also found...

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Ammonium nitrate

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Ammonium nitrate is a chemical compound with the formula NH4NO3. It is a white crystalline salt consisting of ions of ammonium and nitrate. It is highly...

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Cured fish

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with or without sodium nitrate, in smoked, cured sablefish, smoked, cured salmon, and smoked, cured shad so that the level of sodium nitrite does not...

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Celery salt

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stews. It is a primary ingredient in Old Bay brand seasoning. Because sodium nitrate, a chemical that serves as a food preservative, occurs naturally in...

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Molten salt

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other extreme, cesium nitrate melts at 414 °C and decomposes at 584 °C. 60:40 mixture of sodium nitrate and potassium nitrate is a liquid between 260-550 °C...

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Peroxynitrate

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Moiseevich Tanatar produced sodium peroxynitrate octahydrate (NaNO3·H2O2·8H2O) by evaporating a solution of sodium nitrate and hydrogen peroxide until...

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Solar power tower

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Newer designs using liquid sodium have been demonstrated, and systems using molten salts (40% potassium nitrate, 60% sodium nitrate) as the working fluids...

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Caliche

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quantities. The deposits contain an average of 7.5% sodium nitrate, as well as sodium sulfate (18.87%), sodium chloride (4.8%), and smaller amounts of potassium...

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Thermal decomposition

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gas. Sodium azide on heating at 300 °C (573 K; 572 °F) violently decomposes to nitrogen and metallic sodium. Sodium nitrate on heating yields sodium nitrite...

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Sodium

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important sodium compounds are table salt (NaCl), soda ash (Na2CO3), baking soda (NaHCO3), caustic soda (NaOH), sodium nitrate (NaNO3), di- and tri-sodium phosphates...

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Colored fire

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perchlorate Ammonium nitrate Barium chlorate Potassium nitrate (saltpeter) Potassium chlorate Potassium perchlorate Strontium nitrate Sodium nitrate Many of these...

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