Molecular formula: Generally C3H5(C20H29O2)3, but the specific formula depends on the ratio of rosin to glycerol.

Molecular weight: Varies depending on the specific composition of reactants, typically in the range of 700-1200 g/mol.

CAS number: 8050-31-5
 

Physical properties:

Appearance: Light yellow to pale amber solid, usually in flakes, chunks, or powder form.

Odor: Characteristic odor of rosin.

Density: Approximately 1.06-1.08 g/cm³ (25°C).
 

Chemical properties:

Solubility: Soluble in most organic solvents such as ethanol, diethyl ether, acetone, benzene, etc.; insoluble in water.
 

Applications

● Hot melt pressure-sensitive adhesives: used in tape adhesives, double-sided adhesives, etc.

● Solvent-based pressure-sensitive adhesives: used in laminating adhesives, etc.

● Hot melt adhesives: used in EVA hot melt adhesives, polyamide hot melt adhesives, etc.

● Sealant adhesives: used in construction sealants, etc.

● Solvent-based pressure-sensitive adhesives: used in tape adhesives, pressure-sensitive adhesives, etc.
 

Packaging and storage:

Packaging: Commonly packaged in paper bags, woven bags, or plastic drums, with typical sizes of 25 kg, 50 kg, or 200 kg.

Storage: Store in a cool, dry, well-ventilated place, away from high temperatures and direct sunlight. Keep away from fire and heat sources.