Melting point :246 °C
Boiling point :65°C/15mmHg(lit.)
Density :1.27
vapor pressure :6.6Pa at 25℃
refractive index :1.4220 (estimate)
Flash point :50°C
storage temp. :Keep in dark place,Sealed in dry,2-8°C
solubility :Chloroform (Slightly), Methanol (Slightly)
form :Fine Crystalline Powder
color :White
Water Solubility :0.02 g/100 mL (20 ºC)
Sublimation :112-115 ºC
LogP :0.12 at 20℃
CAS DataBase Reference :108-62-3(CAS DataBase Reference)
NIST Chemistry Reference :Acetaldehyde, tetramer(108-62-3)
EPA Substance Registry System :Metaldehyde (108-62-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H228 Flammable solid Flammable solids Category 1 Category 2 Danger Warning P210, P240,P241, P280, P370+P378 H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H313 May be harmful in contact with skin Acute toxicity,dermal Category 5 P312 H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Precautionary statements:	P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P320 Specific treatment is urgent (see … on this label). P330 Rinse mouth. P405 Store locked up.