Metzger, AdolfRenken, AlbertHenke, Karl H.Schreiber, Horst2006-04-182006-04-182006-04-181976https://infoscience.epfl.ch/handle/20.500.14299/229309a-Hydroxyalkanesulfonates were prepd. by the addn. of SO2 gas to a soln 0.95-1.0:1 soln. of aldehyde and alkali at such a rate as to maintain a pH of 3.0-4.5. Thus, SO2 was added to a soln. of NaOH and HCHO to give HOCH2SO3Na practically free of ionic impurities. [on SciFinder (R)]Sulfonic acids Role: SPN (Synthetic preparation)PREP (Preparation)alkanesulfonate hydroxyhydroxyalkanesulfonatealdehyde sulfonationpatentFR2300759DE2505705DE2505705FR2300759NL7601239BE8384935938608