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433837

Sigma-Aldrich

Ethyl cellulose

viscosity 46 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl

Synonym(s):

Cellulose ethylate

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About This Item

CAS Number:
9004-57-3
MDL number:
MFCD00131037
UNSPSC Code:
12162002
NACRES:
NA.23

description

water vapor transmission 890 g/m2/24hrs 3-mil. film (ASTM E96-66,E)

form

powder

autoignition temp.

698 °F

hardness

52-61 (Sward, 3-mil. film)

concentration

48.0-49.5%

extent of labeling

48% ethoxyl
2.25-2.58 mol ethyl per mol cellulose (D.S.)

refractive index

n20/D 1.47 (lit.)

viscosity

46 cP, 5 % in toluene/ethanol 80:20(lit.)

transition temp

Tg 120-124 °C

solubility

esters, aromatic hydrocarbons, alcohols and ketones: soluble

density

1.14 g/mL at 25 °C (lit.)

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Application

Film-former in coatings, hot-melt adhesives and transfer inks and as a plastic coating for a variety of substrates.

Features and Benefits

Produces transparent films, unaffected by visible and UV light. Flexible over a wide temperature range (70 to 150 °C), exhibits low flammability and can be made flame-retardant. Compatible with plasticizers and modifiers to improve adhesion, gloss, hardness and water resistance.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Daniela Traini et al.
International journal of pharmaceutics, 438(1-2), 150-159 (2012-09-12)
The potential of excipient coating to enhance aerosol performance of micronized drugs in carrier excipient-drug blends, used in dry powder inhalers, was investigated. Both EC (ethyl cellulose) and PVP (polyvinylpyrrolidone) were used as coating agents. Carriers were prepared via sieve
Anurag Verma et al.
Acta pharmaceutica (Zagreb, Croatia), 62(2), 237-250 (2012-07-04)
Chitosan has become a focus of major interest in recent years due to its excellent biocompatibility, biodegradability and non-toxicity. Although this material has already been extensively investigated in the design of different types of drug delivery systems, it is still
Xin Li et al.
Die Pharmazie, 67(8), 695-700 (2012-09-11)
A novel osmotic pump tablet with ethyl cellulose (EC) and polyvinyl pyrrolidone (PVP) as the semipermeable membrane and isosorbide-5-mononitrate (5-ISMN) as the model drug was formulated in this study. Zero order release kinetics were attained by avoiding aging during storage.
Nahla S Barakat et al.
Drug development and industrial pharmacy, 39(2), 352-362 (2012-05-01)
Gliclazide (GLZ)-loaded microparticles made with a polymeric blend were prepared by a solvent evaporation technique. Organic solutions of two polymers, poly(ε-caprolactone) (PCL) and Eudragit RS (E RS) or ethyl cellulose (EC), in different weight ratios, and 33.3% of GLZ were
Helene Andersson et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 48(1-2), 240-248 (2012-11-20)
Films of ethyl cellulose (EC) and water-soluble hydroxypropyl cellulose (HPC) can be used for extended release coatings in oral formulations. The permeability and microstructure of free EC/HPC films with 30% w/w HPC were studied to investigate effects of EC molecular
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