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Merck

191892

Hydroxypropyl cellulose

average Mw ~370,000, powder, 20 mesh particle size (99% through)

Synonyme(s) :

HPC

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A propos de cet article

Numéro CAS:
UNSPSC Code:
12162002
NACRES:
NA.23
MDL number:
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Nom du produit

Hydroxypropyl cellulose, average Mw ~370,000, powder, 20 mesh particle size (99% through)

SMILES string

N(C)(C)c1cc(c(cc1)C(N)CC)C

InChI

1S/C12H20N2/c1-5-12(13)11-7-6-10(14(3)4)8-9(11)2/h6-8,12H,5,13H2,1-4H3

InChI key

RRHXDYJWVYFMKV-UHFFFAOYSA-N

description

biological oxygen demand (BOD) 14,000 ppm

form

powder

autoignition temp.

752 °F

mol wt

average Mw ~370,000

impurities

<5 wt. %

particle size

20 mesh (99% through)

pH

5.0-8.5

interfacial tension mineral oil

12.5 dyn/cm, 0.1 wt. % in H2O (vs. mineral oil)

viscosity

150-400 cP, 2 wt. % in H2O(25 °C, Brookfield, spindle #2) (60 rpm)(lit.)

solubility

H2O: insoluble (above 45 °C)
polar organic solvents: soluble

density

0.5 g/mL at 25 °C (lit.)

Quality Level

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Application

Hydroxypropyl cellulose can be used to prepare composite nanospheres for drug delivery systems. Hydroxypropyl methacrylate/hydroxy cellulose graft copolymers can be used as matrices for controlled-release tablets. It can also be used as an electrolyte additive to prepare gel polymerelectrolytes for dye-sensitized solar cells.

General description

Hydroxypropyl cellulose (HPC) is a nonionic derivativeof cellulose. It is a thermosensitive, biodegradable polymer with low criticalsolution temperature.

Classe de stockage

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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A Aykut-Yetkiner et al.
Journal of dental research, 92(3), 289-294 (2013-01-15)
The objective of this in vitro study was to investigate the effects of viscosity changes of different acidic solutions on dental erosion. Bovine enamel samples (n = 240, Ø = 3 mm) were embedded in acrylic resin and were allocated
Homendra Naorem et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 101, 67-73 (2012-10-27)
The formation constant of triiodide ions from iodine-iodide equilibrium in aqueous-organic solvent or polymer mixed media have been determined spectrophotometrically at three different temperatures 20, 30 and 40°C. The organic solvents chosen for the study are ethylene glycol, 2-methoxy ethanol
Catherine Boissier et al.
Journal of pharmaceutical sciences, 101(7), 2512-2522 (2012-04-28)
Nuclear magnetic resonance (NMR) cryoporometry and scanning electron microscopy (SEM) image analysis have been used to investigate the size and shape distribution of pores in pharmaceutical coatings. The coatings were made from a mixture of hydroxypropylcellulose (HPC) and ethylcellulose (EC).
Chirangano Mangwandi et al.
International journal of pharmaceutics, 427(2), 328-336 (2012-03-07)
Being able to predict the properties of granules from the knowledge of the process and formulation variables is what most industries are striving for. This research uses experimental design to investigate the effect of process variables and formulation variables on
Hyemin Choi et al.
Journal of pharmaceutical sciences, 101(8), 2941-2951 (2012-05-26)
Living organisms secrete minerals composed of peptides and proteins, resulting in "mesocrystals" of three-dimensional-assembled composite structures. Recently, this biomimetic polymer-directed crystallization technique has been widely applied to inorganic materials, although it has seldom been used with drugs. In this study

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