Sulfanilic acid

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Sulfanilic acid
Skeletal formula of sulfanilic acid
Ball-and-stick model of sulfanilic acid
style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
CAS number 121-57-3 YesY
PubChem 8479
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style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula C6H7NO3S
Molar mass 173.19
Melting point

288 °C, 561 K, 550 °F

Solubility in water >20 g/l
style="background: #F8EABA; text-align: center;" colspan="2" | Related compounds
Related sulfonic acids Benzenesulfonic acid
p-Toluenesulfonic_acid
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Sulfanilic acid (4-aminobenzene sulfonic acid ) is a colourless crystalline solid produced from sulfonation of aniline.[1]

It readily forms diazo compounds and is used to make dyes and sulpha drugs. [1]

Sulphanilic acid exists as a zwitterion, and has an unusually high melting point. It is used as a standard in Combustion Analysis.

References

  1. 1.0 1.1 "Sulphanilic acid". A Dictionary of Chemistry. Oxford University Press, 2000. Oxford Reference Online. Oxford University Press.
de:Sulfanilsäure

it:Acido solfanilico nl:Sulfanilzuur pl:Kwas sulfanilowy pt:Ácido sulfanílico ru:Сульфаниловая кислота fi:Sulfaniilihappo