Viskase Dialysis Membrane Tubing are seamless cellulose membranes with sharp Molecular Weight Cut-Offs in tubing format. MEMBRA-CEL™ semi-permeable dialysis membranes are made of regenerated cellulose using the viscose process.
- Stable in weak acids and bases
- Compatibile with many salts such as CaCl2, (NH4)2SO4, etc.
- Compatible with most aqueous organic solvents, such as alcohols and ketones
- Sensitive to microbial activity when humidified. However, growth of cellulolytic micro-organisms can be prevented by keeping the membrane in water containing benzoate, benzoic acid, or other preservatives
- Very low protein adsorption
- Contains low levels of contaminants; some membranes contain glycerin as a humectant. Contaminants may be removed by boiling prior to use