EC: Ethyl Cellulose

Because Ethyl Cellulose is insoluble in water but is soluble in many organic solvents, it is used as an adhesive agent in tablets and granules. It can increase the hardness and reduce the friability of a tablet.

Additionally, common applications are as a film-forming agent to improve the appearance of a tablet, isolating taste and avoiding disintegration of water-sensitive drugs. By preventing water absorption, tablets can be stored for a longer period of time. It can also be used to reinforce sustained-release tablets.

Technical specification

Item K grade N grade
Ethoxy (WT%) 45.5-46.8 47.5-49.5
Viscosity (mPa.s) (5% solu., 20) 4, 5, 7, 10, 20, 50, 70, 100, 150, 200, 300
Loss on drying (%) ≤3.0
Chloride (%) <0.1
Residue on ignition (%) ≤0.4
Heavy metals (ppm) ≤20
Arsenic (ppm) ≤3

Packing: 12.5kg bags with PE inner, 600kg pallet, 6MT. in 20"FT FCL.

Application suggestions

Headcel product Viscosity (5%
toluene ethanol
solution, 25˚C)
Coating Control released Granulation Binder Micro-encapsulation
Headcel EC N4 4 X        
Headcel EC N7 7 X X   X  
Headcel EC N10 10 X X X X  
Headcel EC N20 20 X X X    
Headcel EC N45 45     X   X
Headcel EC N100 100       X X