Nitric acid

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Nitric acid
Structural formula o nitric acid wi assortit dimensions
Baw-an-stick model o nitric acid
Resonance space-fillin model o nitric acid
Names
IUPAC name
Nitric acid
Identifiers
3D model (JSmol)
3DMet B00068
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.028.832
EC Nummer 231-714-2
Gmelin Reference 1576
KEGG
MeSH Nitric+acid
RTECS nummer QU5775000
UNII
UN nummer 2031
Properties
HNO3
Molar mass 63.01 g·mol−1
Appearance Colourless liquid
Density 1.5129 g cm−3
Meltin pynt −42 °C (−44 °F; 231 K)
Bylin pynt 83 °C (181 °F; 356 K)
Completely miscible
Acidity (pKa) -1.4[1]
Refractive index (nD) 1.397 (16.5 °C)
2.17 ± 0.02 D
Thermochemistry
Staundart molar
entropy
So298
146 J·mol−1·K−1[2]
Std enthalpy o
formation
ΔfHo298
−207 kJ·mol−1[2]
Hazards
EU clessification Corrosive C Oxidising agent O
R-phrases R8 R35
S-phrases (S1/2) S23 S26 S36 S45
NFPA 704
Flash pynt Non-flammable
Relatit compoonds
Ither anions
Nitrous acid
Ither cations
Sodium nitrate
Potassium nitrate
Ammonium nitrate
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Nitric acid (HNO3), an aa kent as aqua fortis an spirit of niter, is a heichly corrosive strang meeneral acid.

References[eedit | eedit soorce]

  1. Bell, R. P. (1973), The Proton in Chemistry (2nd ed.), Ithaca, NY: Cornell University Press 
  2. 2.0 2.1 Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.