Acrylic Acid → Acrylic Acid

HRID 1773806Notes

Reaction equation

HRID 1773806 reaction equation
[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[OH-].[Na+:7]>O>[C:1]([O-:5])(=[O:4])[CH:2]=[CH2:3].[Na+:7].[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3]

Participants

5

Reactant 2

HCID 6581Acrylic AcidHCID 14798Sodium Hydroxide

Product 2

HCID 6581Acrylic AcidHCID 4068533Sodium acrylate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In a stirred 3 L reactor with a cooling jacket (T1=20° C.) was carried out a titration of acrylic acid (730 g, assay 98.8%, 10.02 mol) in water (1260 g), with aqueous 48% sodium hydroxide (818 g, 9.82 mol) over 5 h. The reactor was equipped with a pH meter and changes during the titration were recorded. When the pH is about 6.3-6.4, a desired ratio between sodium acrylate and acrylic acid is obtained (98:2). This solution, which contains ˜33% w/w dissolved material (sodium acrylate and acrylic acid), is stable at room temperature for several days.

Workup

  1. customIn a stirred 3 L reactor with a cooling jacket (T1=20° C.) was carried out
  2. customThe reactor was equipped with a pH meter and changes during the titration

Sources & evidence

ORD record
ord-1e130ef10549486e9a306f8d9a78cf88
Source dataset
uspto-grants-2016_02
Patent number
US09255165B2

Reaction notes

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