Phthalic Acid → Phthalic acid, dipotassium salt

HRID 345714Notes

Reaction equation

HRID 345714 reaction equation
[C:1]([OH:12])(=[O:11])[C:2]1[C:3](=[CH:7][CH:8]=[CH:9][CH:10]=1)[C:4]([OH:6])=[O:5].[OH-].[K+:14]>O>[C:1]([O-:12])(=[O:11])[C:2]1[C:3](=[CH:7][CH:8]=[CH:9][CH:10]=1)[C:4]([O-:6])=[O:5].[K+:14].[K+:14]

Participants

4

Reactant 2

HCID 1017Phthalic AcidHCID 14797Potassium Hydroxide

Product 1

HCID 78125Phthalic acid, dipotassium salt

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In a 2-liter beaker equipped with a stirrer were placed 100 g of phthalic acid, 141 g of a 48% aqueous solution of caustic potash and 1230 g of water. A reaction was carried out for 2 hours at 30° C. with stirring to obtain an aqueous solution of potassium phthalate having a pH value of 10.3 and containing 10.1% by weight of a solid matter.

Workup

  1. customIn a 2-liter beaker equipped with a stirrer

Sources & evidence

ORD record
ord-bb34c392879949d98cdfd98e088b2e34
Source dataset
uspto-grants-1991_10
Patent number
US05059272

Reaction notes

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