LN7059929
99% , 3724-65-0
Synonym(s):
trans-2-Butenoic acid
CAS NO.：3724-65-0
Empirical Formula: C4H6O2
Molecular Weight: 86.09
MDL number: MFCD00002701
EINECS: 223-077-4
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 70-72 °C(lit.) |
| Boiling point: | 180-181 °C(lit.) |
| 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 | 1.4210 (estimate) |
| FEMA | 3908 | (E)-2-BUTENOIC ACID |
| Flash point: | 190 °F |
| storage temp. | 2-8°C |
| pka | 4.80±0.10(Predicted) |
| Odor | at 0.10 % in propylene glycol. roasted burnt |
| Odor Type | milky |
| Water Solubility | soluble |
| LogP | 0.720 |
| CAS DataBase Reference | 3724-65-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Crotonic acid(3724-65-0) |
| EPA Substance Registry System | Crotonic acid (3724-65-0) |
Description and Uses
Crotonic acid is a white or colorless, crystalline solid with a pungent odor. May be transported as amolten liquid. Molecular weight=86.10; Boilingpoint=187-189℃; Freezing/Melting point=72℃; Flashpoint=88℃ (oc); Autoignition temperature=396℃.Hazard Identification (based on NFPA-704 M RatingSystem): Health 3, Flammability 2, Reactivity 0. Soluble inwater; solubility=9% at 25℃. This chemical is the commercially used trans-isomer. The cis-isomer is lessstable and melts at 15℃.
Synthesis of resins, polymers, plasticizers, drugs.
Safety
| Symbol(GHS) |   GHS07,GHS05 |
| Signal word | Danger |
| Hazard statements | H302-H314-H312 |
| Precautionary statements | P280-P302+P352-P312-P322-P363-P501-P264-P270-P301+P312-P330-P501-P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501 |
| Hazard Codes | C |
| Risk Statements | 21/22-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2823 8/PG 3 |
| WGK Germany | 3 |
| RTECS | GQ2900000 |
| Hazardous Substances Data | 3724-65-0(Hazardous Substances Data) |
