Small molecule acid Acids

Perstorp Dimethylolpropionic Acid DMPA

Product introduction
DMPA is a unique, multifunctional hindered diol molecule with both hydroxyl and carboxyl groups. After neutralization with alkali, free acid groups can actively improve the water solubility or water dispersibility of resins; introduce polar groups to improve the adhesion of coatings and dyeing properties of synthetic fibers; increase the alkali solubility of coatings. Can be used in water-soluble polyurethane systems, water-soluble alkyd and polyester resins, epoxy ester coatings, polyurethane elastomers, and powder coatings. DMPA is an odorless, free-flowing, white crystalline solid.

Typical Properties Table

nature	Typical value
molecular weight	134.13
Acid value, mg KOH/g	410-415
Melting point, °C	170-180
Flash point (open cup) °C	220
Decomposition temperature, °C	230
Solubility, g/100g solvent @ 25°C
water	11
acetone	2.3
Ethanol	insoluble

Other indicators

Hydroxyl content, wt%	>24
Neutralization Equivalent, g/eq	<141
Ash content of Na2O, wt %	<0.03
Impurities, wt%	<0.5
Water insoluble matter, ppm	<50
Chroma	<250