Citroflex® 4 or C-4 is an excellent plasticizer for both cellulosic derivatives and vinyl resins. It provides improved light stability when used in cellulose acetate. It is also an excellent de-foaming agent in protein solutions. Citroflex® 4 does not support fungal growth.
The lower molecular weight citric acid esters (Citroflex C-2, A-2, C-4, and A-4) have plasticization characteristics similar to those of the lower molecular weight phthalates, adipates, and sebacates in a variety of polymers.
Appearance: Clear liquid
Pour point, °C: -62
Viscosity @ 25°C, cps: 32
Specific gravity @ 25/25°C: 1.037 - 1.045
Primary Chemistry: Tributyl Citrate
Topical bandages, aluminum foil coatings, aerosol hair spray plasticizer, films, coatings, adhesives
Citroflex® Citric Acid Esters are based on natural citric acid raw material, which is mainly derived from the fermentation of corn. They provide a wide range of benefits when used as plasticizers with aqueos and solvent-based polymers.