METHYL 4-HYDROXYBENZOATE POTASSIUM synthesis
- Product Name:METHYL 4-HYDROXYBENZOATE POTASSIUM
- CAS Number:26112-07-2
- Molecular formula:C8H7KO3
- Molecular Weight:190.24
99-76-3
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Yield:-
Reaction Conditions:
with potassium hydroxide in water;
Steps:
6 EXAMPLE 6
EXAMPLE 6 304.4 g of methyl 4-hydroxybenzoate were suspended in 740 ml of water and dissolved at 20° C. by adding 142 ml of 50% strength potassium hydroxide solution in the course of 20 minutes. Neutralisation was completed (pH 12.1) with a further 6 ml of the 50% strength potassium hydroxide solution. Spray-drying gave the pure-white potassium salt of methyl 4-hydroxybenzoate with a 4-hydroxybenzoic acid content of 0.2% by weight and a water content of 0.1% by weight.
References:
US4276431,1981,A