2,3-Dihydroxybenzene-1-sulfonic acid → HCID 88518704, compound

HRID 1993137Notes

Reaction equation

HRID 1993137 reaction equation
[C:1]1([CH:8]=[CH:7][CH:6]=[C:5]([S:9]([OH:12])(=[O:11])=[O:10])[C:3]=1[OH:4])[OH:2].[OH-].[Ca+2:14].[OH-]>>[C:1]1([CH:8]=[CH:7][CH:6]=[C:5]([S:9]([O-:12])(=[O:11])=[O:10])[C:3]=1[OH:4])[OH:2].[Ca+2:14].[C:1]1([CH:8]=[CH:7][CH:6]=[C:5]([S:9]([O-:12])(=[O:11])=[O:10])[C:3]=1[OH:4])[OH:2]

Participants

3

Reactant 2

HCID 4409832,3-Dihydroxybenzene-1-sulfonic acidHCID 6093208Calcium Hydroxide

Product 1

HCID 88518704HCID 88518704, compound

Procedure

To 1000 g of 10% catechol sulfonic acid aqueous solution stirred at room temperature, 30 g of calcium hydroxide was added. The stirring was continued while measuring the pH value. At the time when the pH value reached 6, approximately, filtration was done by using a 0.4 μm glass filter to remove the insoluble components, so as to obtain a calcium catecholsulfonate aqueous solution.

Workup

  1. filtrationapproximately, filtration
  2. filtrationfilter
  3. customto remove the insoluble components

Sources & evidence

ORD record
ord-f2f7b023e8c44a99920a9b5b9407809e
Source dataset
uspto-grants-2010_01
Patent number
US07651639B2

Reaction notes

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