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Thermo Scientific™ SnakeSkin™ Dialysis Tubing, 7K MWCO, 22 mm

Perform desalting and buffer exchange for 15 to 100mL samples with this 7000-MW cut-off (MWCO), ready-to-use form of traditional dialysis membrane tubing.

Manufacturer:  Thermo Scientific™ 68700

Catalog No. PI68700

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Thermo Scientific SnakeSkin Dialysis Tubing, 7K MWCO, is an easy- and ready-to-use form of traditional dialysis membrane tubing that allows desalting and buffer exchange for 15 to 100mL samples.

SnakeSkin Dialysis Tubing, 7K MWCO, is composed of regenerated-cellulose and supplied as an open, pleated (telescoped) tube. SnakeSkin Dialysis Tubing is supplied in eight inch (20cm) sticks containing 35 feet of dialysis tubing having a 22mm circular internal diameter (I.D.). Equivalent in capacity to 10.5 meters of 34 diameter dry flat width tubing, the hydrated SnakeSkin Dialysis Tubing holds approx. 3.7mL of sample per centimeter of length.


  • Convenient – ready to use, pre-wetted, pleated tube

  • High recovery – greater than 90% protein recovery

  • Speed – dialysis is generally completed in 4 to 6 hours

  • Stability – compatible with a variety of laboratory solutions, including acids, bases, hydrophobic solvents and alcohols

7K MWCO Tubing Specifications:

  • Membrane Type: Regenerated cellulose

  • Tubing Nominal Dry Thickness: 0.9 to 1.2mil (22 to 30μm)

  • Glycerol Content: 13%

  • Sulfur Content: 0.1% to 0.15%

  • Heavy Metals Content: Trace



Buffer Exchange, Protein
Cellulose Membrane, Dialysis
10.5 m
7 K
22 mm
7.0 kDa
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