Chemistry Reference
In-Depth Information
Hydroxyethyl Cellulose
Structure
RO
O
OH
RO
OR
R is H or [
-
CH
2
CH
2
O
-
]
m
H
O
O
OR
OR
O
H
OR
n/
2
Synonyms
HEC, cellulose hydroxyethylate, CELLOSIZE HEC,
Natrosol
Molecular weight range
(g/mol)
95,000
-
1,150,000
Solubility parameter,
δ
(MPa
0.5
)
31
T
g
range (
°
C)
100-150
Water uptake (% water at
84% RH)
29%
Solvent solubility
Partially soluble in polar organic solvents, such as glycols;
practically insoluble in acetone, ethanol (95%), ether,
toluene, and most other organic solvents
pH range where soluble
1-10
Amenable methods of
dispersion manufacture
Spray drying
Use in marketed dispersion
products
None
Grade
MW
LF
95,000
HF
1,150,000
