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Propiolic Acid Structure

Propiolic Acid

Chemical Properties

Melting point 16-18 °C (lit.)
Boiling point 102 °C/200 mmHg (lit.)
Density  1.138 g/mL at 25 °C (lit.)
refractive index  n20/D 1.431(lit.)
Flash point 138 °F
storage temp.  2-8°C
solubility  Chloroform (Soluble), Methanol (Soluble)
form  Liquid After Melting
pka 1.84(at 25℃)
color  Clear colorless to light brown
Specific Gravity 1.138
Water Solubility  miscible
Merck  14,7821
BRN  878176
Stability Stable. Incompatible with bases, oxidizing agents, reducing agents. Combustible.
CAS DataBase Reference 471-25-0(CAS DataBase Reference)
NIST Chemistry Reference Propiolic acid(471-25-0)
EPA Substance Registry System 2-Propynoic acid (471-25-0)

Safety Information

Hazard Codes  T
Risk Statements  24/25-34-25-23/24/25
Safety Statements  26-36/37/39-45-24/25-7/9
RIDADR  UN 2920 8/PG 2
WGK Germany  3
RTECS  UD9300000
3-8
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29161980
Hazardous Substances Data 471-25-0(Hazardous Substances Data)
Toxicity guinea pig,LD50,skin,100mg/kg (100mg/kg),"Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2C, Pg. 4953, 1982.

MSDS

Usage And Synthesis

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