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308633

Sigma-Aldrich

2-Hydroxyethyl cellulose

average Mw ~380,000

Synonym(s):

HEC

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About This Item

CAS Number:
9004-62-0
MDL number:
MFCD00072770
UNSPSC Code:
12162002
NACRES:
NA.23

description

Viscosity:300 - 400 cps, c = 2%; Water at 25° C

form

powder

autoignition temp.

725 °F

mol wt

average Mw ~380,000

extent of labeling

1.0 mol per mol cellulose (D.S.)
2.0 mol per mol cellulose (M.S.)

mp

288-290 °C (dec.)

density

0.6 g/mL at 25 °C (lit.)

InChI

1S/C29H52O21/c1-10-15(34)16(35)24(13(8-33)45-10)49-28-20(39)18(37)25(50-29-26(43-5-4-30)21(40)23(42-3)12(7-32)47-29)14(48-28)9-44-27-19(38)17(36)22(41-2)11(6-31)46-27/h10-40H,4-9H2,1-3H3

InChI key

CWSZBVAUYPTXTG-UHFFFAOYSA-N

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General description

2-Hydroxyethyl cellulose (HEC) is a water soluble biopolymer that is majorly used as a thickener and an adhesive. It has water retention which also includes good film forming ability for protective covering.
Non-ionic water soluble polymer. Aqueous solutions are pseudoplastic. Readily disperses without lumping.

Application

Thickener, protective colloid, binder, stabilizer and suspending agent.

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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Distribution of substituents in O-(2-hydroxyethyl) cellulose
Lindberg B, et al.
Carbohydrate Research, 170(2), 207-214 (1987)
Chemical modification of cellulose extracted from sugarcane bagasse: Preparation of hydroxyethyl cellulose
Abdel-Halim ES
Arabian Journal of Chemistry, 7(3), 362-371 (2014)
Yaman Boluk et al.
Langmuir : the ACS journal of surfaces and colloids, 28(14), 6114-6123 (2012-03-28)
The steady-state shear and linear viscoelastic deformations of semidilute suspensions of rod-shaped nanocrystalline cellulose (NCC) particles in 1.0% hydroxyethyl cellulose and carboxymethyl cellulose solutions were investigated. Addition of NCC at the onset of semidilute suspension concentration significantly altered the rheological
Ying-Chen Chen et al.
International journal of pharmaceutics, 441(1-2), 162-169 (2012-12-15)
The aim was to develop gastroretentive drug delivery systems (GRDDSs) by combining floating and swelling. GRDDS tablets formulated with hydroxyethylcellulose (HEC), chitosan (CS) and sodium bicarbonate (SB) for evaluating floating capacity (floating lag time and duration) and swelling characteristics. CS
Maoqiang Xue et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 912, 1-7 (2013-01-08)
Microporous anodic aluminum oxide (AAO) membranes were modified by 3-glycidoxypropyltrimethoxysilane to produce terminal epoxy groups. These were used to covalently link hydroxyethyl celluloses (HEC) to amplify reactive groups of AAO membrane. The hydroxyl groups of HEC-AAO composite membrane were further
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