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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)

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Kifayat Ullah Shah et al.
TheScientificWorldJournal, 2012, 842348-842348 (2012-06-01)
The design and fabrication of sustained/controlled release dosage forms, employing new excipients capable of extending/controlling the release of drugs from the dosage forms over prolonged periods, has worked well in achieving optimally enhanced therapeutic levels of the drugs. In this
H V Adikane et al.
Applied biochemistry and biotechnology, 169(3), 1026-1038 (2013-01-09)
The chemical modification of developed ethyl cellulose-based membrane was carried out to make it suitable for bioseparation. The different reagents were used for the modification of membrane to couple protein A (PA) to study the purification of immunoglobulin G (IgG)
Li-Ya Huang et al.
International journal of pharmaceutics, 436(1-2), 88-96 (2012-07-14)
A drug-loaded nanofiber mesh which could achieve time-engineeringed biphasic release was fabricated through sequential electrospinning. The drug to polymer ratio of each single mesh was allocated and designed before the tri-layered meshes were created. The resultant meshes had the following
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
N Suwannateep et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 82(3), 485-490 (2012-09-08)
The phytochemical curcumin possesses antioxidant activity; however, it becomes unstable after being exposed to light or heat or loses activity during storage. This is especially important when curcumin is applied to the skin within a cosmetic or pharmaceutical formulation, since
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