Melting point :76-78 °C(Solv: acetone (67-64-1); chloroform (67-66-3))
Density :1.5 g/cm3 (20℃)
refractive index :n20/D 1.504
Flash point :164 °C
storage temp. :room temp
solubility :Practically insoluble in water, in acetone, in anhydrous ethanol, in toluene, in dilute acids and in a 50 g/L solution of sodium hydroxide
form :powder
color :White or almost white
PH :5-7.5 (100g/l, H2O, 20℃)(slurry)
Odor :Odorless
optical activity :-120 (Cuprammonium hydroxide solution)
Water Solubility :insoluble
Merck :14,1965
Exposure limits :ACGIH: TWA 10 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: TWA 10 mg/m3; TWA 5 mg/m3; TWA 1 mg/m3 Dielectric constant :3.2（Ambient）
Stability :Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey :UFHFLCQGNIYNRP-UHFFFAOYSA-N
EPA Substance Registry System :Cellulose (9004-34-6)

Symbol(GHS):
Signal word:
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.