Cellulose Acetate Butyrate
Cellulose acetate butyrate (CAB) is a thermoplastic ester of cellulose with formula varying by substitution, molecular weight around 70,000 g/mol. It is a white powder or pellet, density 1.25 g/mL, melting point 127-240°C, refractive index 1.475, soluble in acetone and esters, insoluble in water. Produced by esterification of cellulose with acetic and butyric acids.
Cellulose Acetate Butyrate
Used in coatings for glossy lacquers, chemical-resistant fabrics, and automotive paints; in plastics for films and molds; in adhesives, inks, and as a binder in pharmaceuticals; in wire coatings and optical films for durability and flexibility.
Low toxicity but dust may irritate eyes and respiratory tract; combustible, avoid heat sources. Stable under ambient conditions; incompatible with strong oxidizers causing fires. California Prop 65 warning for cancer risk; use PPE and ventilation.
In 25kg bags or drums with secure closures; store in cool, dry areas; rinse triply for recycling or puncture packaging for landfill disposal.
