Sulfuric Acid → 4-Amino-1,3-benzenedisulfonic acid

HRID 1073355

Reaktionsgleichung

Reaktionsgleichung von HRID 1073355
[S:1](=[O:5])(=[O:4])([OH:3])O.[NH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1>>[NH2:6][C:7]1[C:12]([S:1]([OH:5])(=[O:4])=[O:3])=[CH:11][C:10]([S:1]([OH:3])(=[O:5])=[O:4])=[CH:9][CH:8]=1

Komponenten

3

Edukt 2

HCID 1118Sulfuric AcidHCID 6115Aniline

Produkt 1

HCID 673044-Amino-1,3-benzenedisulfonic acid

Reaktionsbedingungen

Temperatur
200 °C

Versuchsvorschrift

225.5 g (2.3 mol) of 100% strength sulphuric acid were added to 257.0 g (2.76 mol) of aniline in 460 ml of ortho oil. The suspension obtained was heated at 200° C. for 2.5 hours in a 1.3 1 enamel autoclave. After cooling, the mixture was filtered off with suction and the filter residue was dried. The 475.6 g of solid contained 80.7% of p-sulphanilic acid in addition to unchanged anilinium hydrogensulphate, based on the excess sulphuric acid employed. Aniline-2,4-disulphonic acid was not formed.

Aufarbeitung

  1. customThe suspension obtained
  2. temperatureAfter cooling
  3. filtrationthe mixture was filtered off with suction
  4. customthe filter residue was dried
  5. additionin addition to unchanged anilinium hydrogensulphate

Quellen und Nachweise

ORD-Eintrag
ord-ca6a5238a0aa4cb68d5a645a169b8984
Quelldatensatz
uspto-grants-1990_11
Patentnummer
US04968835

Verknüpfte Notizen

Wird geladen…