Crotonic acid Chemical Properties
Melting point 72 °C
Boiling point 185 °C
density 1.027 g/mL at 25 °C(lit.)
vapor density 2.97 (vs air)
vapor pressure 0.19 mm Hg ( 20 °C)
refractive index 1.4228
FEMA 3908 | (E)-2-BUTENOIC ACID
Fp 190 °F
storage temp. Store below +30°C.
solubility H2O: soluble
pka 4.69(at 25℃)
form Crystalline Flakes
color White to light yellow
PH 3 (10g/l, H2O, 20℃)
explosive limit 15.1%, 171°F
Water Solubility 94 g/L (25 ºC)
Merck 14,2597
BRN 1719943
CAS DataBase Reference 107-93-7(CAS DataBase Reference)
NIST Chemistry Reference Crotonic acid(107-93-7)
EPA Substance Registry System 2-Butenoic acid, (2E)-(107-93-7)
Safety Information
Hazard Codes C,N,Xi
Risk Statements 21/22-34-50/53-36/37/38
Safety Statements 26-36/37/39-45-61-37/39
RIDADR UN 2823 8/PG 3
WGK Germany 3
RTECS GQ2900000
HazardClass 8
PackingGroup III
HS Code 29161940