Nitrosylsulfuric acid


Nitrosylsulfuric acid
Nitrosylsulfuric acid
Identifiers
CAS number 7782-78-7
PubChem 82157
ChemSpider 74147 YesY
Jmol-3D images Image 1
Properties
Molecular formula HNO5S
Molar mass 127.08 g/mol
Appearance pale yellow crystals
Density 1.612 g/mL in
40% sulfuric acid soln
Melting point

73.5 °C

Boiling point

decomposes

Solubility in water decomposes
Solubility soluble in H2SO4
Hazards
Main hazards oxidizer
Related compounds
Other anions NOCl
Other cations NaHSO4
Related compounds NOBF4
 YesY acid (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Nitrosylsulfuric acid is the chemical compound with the formula NOHSO4.

This salt is a source of the NO+ ion, It can also be viewed as the mixed acid anhydride of sulfuric acid and nitrous acid:

HNO2 + H2SO4 → NOHSO4 +H2O

NOHSO4 is useful in organic chemistry to prepare diazonium salts from amines. A typical procedure entails dissolving sodium nitrite in concentrated sulfuric acid in an ice bath.[1][2]

Related NO-delivery reagents include nitrosonium tetrafluoroborate, [NO]BF4, and nitrosyl chloride.

References

  1. ^ Hodgson, H, H.; Mahadevan, A. P. Ward, E. R. (1955), "1,4-Dinitronaphthalene", Org. Synth., http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv3p0341 ; Coll. Vol. 3: 341  (diazodization followed by treatment with nitrite)
  2. ^ Sandin, R. B.; Cairns, T. L. (1943), "1,2,3-Triiodo-5-nitrobenzene", Org. Synth., http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv2p0604 ; Coll. Vol. 2: 604  (diazodization followed by treatment with iodide)

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Look at other dictionaries:

  • nitrosylsulfuric acid — nitrozilsulfato rūgštis statusas T sritis chemija formulė NOHSO₄ atitikmenys: angl. nitrosylsulfuric acid; nitrosulfuric acid rus. нитрозилсерная кислота ryšiai: sinonimas – nitrozilsieros rūgštis sinonimas – vandenilio nitrozilo sulfatas (2–) …   Chemijos terminų aiškinamasis žodynas

  • nitrosylsulfuric acid — | ̷ ̷ ̷ ̷ˌ ̷ ̷+ noun Etymology: International Scientific Vocabulary nitrosyl + sulfuric : a crystalline acid NOHSO4 that is formed by the reaction of nitrogen oxides or fuming nitric acid with sulfuric acid or sulfur dioxide (as in the… …   Useful english dictionary

  • nitrosylsulfuric acid — Chem. a clear, straw colored, oily, corrosive liquid, HNO5S, used chiefly in the manufacture of dyes. [1830 40; NITROSYL + SULFURIC ACID] * * * …   Universalium

  • nitrosylsulfuric — /nuy treuh sil sul fyoor ik/, adj. Chem. of or derived from nitrosylsulfuric acid. Also, nitrosylsulphuric. [1830 40; NITROSYL + SULFURIC] * * * …   Universalium

  • nitrosylsulfuric — /nuy treuh sil sul fyoor ik/, adj. Chem. of or derived from nitrosylsulfuric acid. Also, nitrosylsulphuric. [1830 40; NITROSYL + SULFURIC] …   Useful english dictionary

  • Sulfuric acid — Sulfuric acid …   Wikipedia

  • nitrosulfuric acid — nitrozilsulfato rūgštis statusas T sritis chemija formulė NOHSO₄ atitikmenys: angl. nitrosylsulfuric acid; nitrosulfuric acid rus. нитрозилсерная кислота ryšiai: sinonimas – nitrozilsieros rūgštis sinonimas – vandenilio nitrozilo sulfatas (2–) …   Chemijos terminų aiškinamasis žodynas

  • nitrososulfuric acid — “+ noun Etymology: nitros + sulfuric : nitrosylsulfuric acid …   Useful english dictionary

  • Lead chamber process — The lead chamber process was an industrial method used to produce sulfuric acid in large quantities. It has been largely supplanted by the contact process. In 1746 in Birmingham, England, John Roebuck began producing sulfuric acid in lead lined… …   Wikipedia

  • Nitrosyl chloride — Pr …   Wikipedia


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