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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
Pricing and availability is not currently available.

description

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

Quality Level

200

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.)

SMILES string

O1C(C(C(C(C1CO)OC)O)OCCO)OC2C(OC(C(C2O)O)OC4C(OC(C(C4O)O)C)CO)COC3OC(C(C(C3O)O)OC)CO

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

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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.[1][2]
Non-ionic water soluble polymer. Aqueous solutions are pseudoplastic. Readily disperses without lumping.

Application

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0414
STBL2567
STBL0542
STBK6185
STBK2003

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Chemical modification of cellulose extracted from sugarcane bagasse: Preparation of hydroxyethyl cellulose
Abdel-Halim ES
Arabian Journal of Chemistry, 7(3), 362-371 (2014)
Distribution of substituents in O-(2-hydroxyethyl) cellulose
Lindberg B, et al.
Carbohydrate Research, 170(2), 207-214 (1987)
Julian Kirch et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(45), 18355-18360 (2012-10-24)
In this study, the mobility of nanoparticles in mucus and similar hydrogels as model systems was assessed to elucidate the link between microscopic diffusion behavior and macroscopic penetration of such gels. Differences in particle adhesion to mucus components were strongly
Salomé dos Santos et al.
Journal of colloid and interface science, 383(1), 63-74 (2012-07-17)
Associative aqueous mixtures over a range of concentrations of double- (ds) or single- (ss) stranded DNA with dilute or semidilute solutions of two cationic derivatives of hydroxyethyl cellulose (cat-HEC and cat-HMHEC,(1) the latter carrying grafted hydrophobic groups), were studied. The
Barbra A Richardson et al.
Journal of acquired immune deficiency syndromes (1999), 63(1), 120-125 (2013-01-22)
To compare the 2 control arms of HPTN 035 [a hydroxyethylcellulose (HEC) gel control arm and a no-gel control arm] to assess the behavioral effects associated with gel use and direct causal effects of the HEC gel on sexually transmitted
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