Formaldehyde → Benzenemethanesulfonic acid, .alpha.-hydroxy-, sodium salt (1:1)

HRID 1579144Notes

Reaction equation

HRID 1579144 reaction equation
[C:1]1(O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:8]=[O:9].[S:10]([O-:13])([O-:12])=[O:11].[Na+:14].[Na+]>O>[OH:9][CH:8]([S:10]([O-:13])(=[O:12])=[O:11])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Na+:14]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 996PhenolHCID 24437Sodium Sulfite

Product 1

HCID 23665709Benzenemethanesulfonic acid, .alpha.-hydroxy-, sodium salt (1:1)

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

No. 1 A one-liter three necked flask provided with a stirrer and a reflux condenser was charged with 94g of phenol, 81g of 37% formalin, 126g of sodium sulfite and 300g of water. Reaction was conducted for 5 hours under heating by a boiling water bath to obtain a water solution of sodium hydroxybenzylsulfonate. The concentration of the solution thus obtained was about 40% by weight, and the pH value thereof was 11.5. This solution was used as a water-reducing additive designated as A.

Workup

  1. custom1 A one-liter three necked flask provided with a stirrer and a reflux condenser
  2. customReaction
  3. temperatureunder heating by a boiling water bath

Sources & evidence

ORD record
ord-64f48e1d5c364ef48ae007d1c965fd55
Source dataset
uspto-grants-1976_01
Patent number
US03931083

Reaction notes

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