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Key Documents

D9402

Sigma-Aldrich

Dialysis tubing cellulose membrane

avg. flat width 76 mm (3.0 in.)

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About This Item

UNSPSC Code:
41123100
NACRES:
NB.22

avg. diam.

49 mm , when full

avg. flat width

76 mm (3.0 in.)

capacity

~640 mL/ft

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General description

Typical molecular weight cut-off = 14,000.

Packaging

Supplied in rolls, dry

Quality

May contain glycerin and sulfur compounds in more than trace amounts.

Preparation Note

Removal of glycerol included as a humectant can be accomplished by washing the tubing in running water for 3-4 hours. Removal of sulfur compounds can be accomplished by treating the tubing with a 0.3% (w/v) solution of sodium sulfide at 80°C for 1 minute. Wash with hot water (60°C) for 2 minutes, followed by acidification with a 0.2% (v/v) solution of sulfuric acid, then rinse with hot water to remove the acid. This tubing will retain most proteins of molecular weight 12,000 or greater.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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