m-Hydroxybenzolsulfonsure Chemische Eigenschaften,Einsatz,Produktion Methoden
Definition
ChEBI: An arenesulfonic acid that is phenol substituted by a sulfo group at C-3.
Vorbereitung Methode
M-hydroxybenzenesulphonic acid is synthesized by the reaction of 1,3-benzenedisulfonic acid and sodium hydroxide in water in an autoclave for 30 h at 250 ℃. The reaction mass is neutralized and evaporated to dryness. The sodium salt of the acid is extracted with 78% ethyl alcohol; yield 78%]. The crude solution obtained by acidifying the reaction mass with hydrochloric acid and freeing it from sulfur dioxide by boiling can be used in the manufacture of dyes.
m-Hydroxybenzolsulfonsure Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
