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Technical Data Sheet

Chemical Synonym
  • Cellulose diacetate
  • Filtration
  • Liquid food filters - food contact
  • Membrane filtration - non food contact
  • Single use articles - food contact
  • Single use liquid filters - food contact

Product Description
Eastman Membrane Material M203, Food Contact is a low viscosity, low molecular weight cellulose diacetate. It is supplied as fine, dry, free-flowing powder. The powder is free from coarse particles and excessive fines. Its high purity permits manufacturing of membranes with fewer defects in the separating layer of the membrane.

This product is manufactured, stored, handled, and transported by Eastman under conditions adhering to current Good Manufacturing Practices for food contact applications. This product meets requirements for use in certain food contact applications under regulations of the U.S. Food and Drug Administration (21 CFR), European Commission (Regulation 10/2011) and Switzerland Ordinance of the FDHA on materials and articles intended to come into contact with foodstuffs (817.023.21, Annex 10). Contact your Eastman representative or authorized Eastman distributor for specific regulatory compliance documentation.

For applications that do not require food contact compliance, please refer to Eastman Membrane Material M203.

Typical Properties

PropertyTypical Value, Units
Specific Gravity1.31 g/cm3
Moisture Content1.5 % max
Hydroxyl Content3.5 wt %
Acetyl Content39.8 wt %
Molecular Weight (Average)a49,000
Tgb180 °C

aNumber-average molecular weight value, MWn, are polystyrene-equivalent weights determined using size exclusion chromatography.
bTg = Glass Transition Temperature (Tg DSC)

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

5/5/2020 10:50:14 AM