Hydroxyethyl cellulose
9004-62-0
CWSZBVAUYPTXTG-UHFFFAOYSA-N
154.25100
154.01200
618-387-5
Petrochemical
91.06000
0.35240
light yellow powder
0.75 g/mL at 25ºC(lit.)
140 °C
H2O: ≤5 wt. % at 20 °C
Hydroxyethyl cellulose powder is a stable though hygroscopicmaterial.
Aqueous solutions of hydroxyethyl cellulose are relatively stableat pH 2-12 with the viscosity of solutions being largely unaffected.However, solutions are less stable below pH 5 owing to hydrolysis.At high pH, oxidation may occur.
Increasing the temperature reduces the viscosity of aqueoushydroxyethyl cellulose solutions. However, on cooling, the originalviscosity is restored.