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423181

Sigma-Aldrich

(Hydroxypropyl)methyl cellulose

average Mn ~90,000

Synonym(s):

Hypromellose

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About This Item

CAS Number:
9004-65-3
MDL number:
MFCD00131360
UNSPSC Code:
12162002

form

powder or crystals

Quality Level

100

mol wt

average Mn ~90,000

extent of labeling

1.1-1.6 mol methoxy per mol cellulose (D.S.)
21 wt. % methoxy
0.1-0.3 mol propylene oxide per mol cellulose (M.S.)
5 wt. % propylene oxide

surface tension

43-55 dyn/cm, 25 °C, 0.05 wt. %

viscosity

15,000 cP, 2 wt. % in H2O(20 °C, Ubbelohde)(lit.)

transition temp

gel point 70-90 °C

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Application

Thickener for aqueous and non-aqueous systems, clear films with grease resistance, binders, lubricants, steric stabilizer and water retention aid.

Features and Benefits

Dissolves in water, undergoes reversible gelation upon heating, non-ionic, does not complex with ionic species and is surface active and enzyme resistant. Solutions are pseudoplastic.

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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Proceedings of the National Academy of Sciences of the United States of America, 111(17), 6287-6292 (2014-04-16)
The recently discovered lytic polysaccharide monooxygenases (LPMOs) are known to carry out oxidative cleavage of glycoside bonds in chitin and cellulose, thus boosting the activity of well-known hydrolytic depolymerizing enzymes. Because biomass-degrading microorganisms tend to produce a plethora of LPMOs
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