Small molecule acid Acids

American General GEO Dimethylol Propionic Acid DMPA

Product introduction
DMPA is an odorless, free-flowing, white crystalline solid. It 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. It can be used in water-soluble polyurethane systems, water-soluble alkyd and polyester resins, epoxy ester coatings, polyurethane elastomers, and powder coatings.

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

form of supply
113.4KG barrel/25KG bag

application

good emulsifying properties	Acid neutralization in cathodic electrocoat
Modifier for nylon fiber	Improved tensile strength, improved solubility
surface application	Improved hand and vulcanization resistance of fabric softeners
Catalyst application	Amino resin and phenolic resin modifier with light color and low formaldehyde emission
metal salt	Convenient carrier for plastic stabilizers, desiccants and catalysts