2-Butynoic acid

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
203.0±9.0 °C at 760 mmHg

[ Melting Point ]:
78-80 °C(lit.)

[ Molecular Formula ]:
C₄H₄O₂

[ Molecular Weight ]:
84.073

[ Flash Point ]:
90.9±15.2 °C

[ Exact Mass ]:
84.021126

[ PSA ]:
37.30000

[ LogP ]:
0.85

[ Vapour Pressure ]:
0.1±0.8 mmHg at 25°C

[ Index of Refraction ]:
1.468

[ Storage condition ]:
2-8°C

Click to get detail MSDS

[ Symbol ]:

GHS05

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H314

[ Precautionary Statements ]:
P280-P305 + P351 + P338-P310

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ Hazard Codes ]:
C:Corrosive;

[ Risk Phrases ]:
R20/21/22;R34

[ Safety Phrases ]:
S26-S27-S36/37/39-S45

[ RIDADR ]:
UN 3261 8/PG 2

[ WGK Germany ]:
3

[ Packaging Group ]:
II

[ Hazard Class ]:
8

[ HS Code ]:
2916190090

Click to get detail synthetic route

Precursor

DownStream

[ HS Code ]: 2916190090

[ Summary ]:
2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

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