TECHNICAL INFORMATION

COMPOSITION

VISKING . COM

COMPOSITION

CHEMICAL TOLERANCES

TEMPERATURE TOLERANCES

PREPARATION & STORAGE INSTRUCTIONS

VISKING DIALYSIS MEMBRANE is made from natural cellulose (cotton linters) by dissolving it in special inorganic solvents and reforming the polymer by removing the solvent to form flat sheet, tubular or hollow fibre membranes. The material has the elastic and flaccid characteristics of a gel when wet with water. Regenerated cellulose, like its parent native cellulose, is quite resistant to organic solvents, elevated temperatures and extremes of pH.

IMPURITIES AND TRACE ELEMENTS:

The membranes, which are supplied dry, contain glycerine which acts as a humectant to prevent brittleness. This must be removed before the membrane can be used.

All RC membranes contain the following trace impurities:

• 0.1% sulphur
• Calcium <0.02 ppm
• Chromium 0.1- 0.2 ppm
• Copper 0.8 - 1.2 ppm
• Iron 20 - 60 ppm
• Lead 2.0 - 6.0 ppm
• Magnesium 0.1 - 0.3 ppm
• Nickel 1.3 - 1.7 ppm
• Zinc 1.5 - 5.0 ppm
  

To remove some or all of the impurities please see our washing instructions.

Please read the disclaimer relating to these data.

LAST UPDATED

13 Sep 2004