| Identification | More | [Name]
Propiolic acidd | [CAS]
471-25-0 | [Synonyms]
2-PROPYNIOC ACID
2-PROPYNOIC ACID
ACETYLENECARBOXYLIC ACID
PROPARGYLIC ACID
PROPIOLIC ACID
Propiolic acidd
PROPYNOIC ACID
Carboxyacetylene
HCequivCCOOH
Propinoic acid
propiolic
Acetylenecarboxylic acid~Propargylic acid~Propynoic acid
Propiolic acid, 98+%
Acetylene monocarboxylic acid
PROPIOLIC ACID, 80% SOLUTION in THF
PROPIOLIC ACID: 80% (CONTAINS 20% THF)
Acetylenecarboxylic acid, Propynoic acid
2-Propyne-1-carboxylic acid
Propynoate | [EINECS(EC#)]
207-437-8 | [Molecular Formula]
C3H2O2 | [MDL Number]
MFCD00004360 | [Molecular Weight]
70.05 | [MOL File]
471-25-0.mol |
| Chemical Properties | Back Directory | [Appearance]
viscous yellow liquid | [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.)
| [Fp ]
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 | [Stability:]
Stable. Incompatible with bases, oxidizing agents, reducing agents. Combustible. | [Water Solubility ]
miscible | [Merck ]
14,7824 | [BRN ]
878176 | [CAS DataBase Reference]
471-25-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Propiolic acid(471-25-0) | [EPA Substance Registry System]
471-25-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T | [Risk Statements ]
R24/25:Toxic in contact with skin and if swallowed .
R34:Causes burns.
R25:Toxic if swallowed.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S24/25:Avoid contact with skin and eyes .
S7/9:Keep container tightly closed and in a well-ventilated place . | [RIDADR ]
UN 2920 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
UD9300000
| [F ]
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. |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
FUMING SULFURIC ACID-->Chromium(VI) oxide-->Propargyl alcohol-->SODIUM ACETYLIDE | [Preparation Products]
3-Aminoisoxazole-->3-oxopregn-4-ene-21,17alpha-carbolactone-->Androst-5-ene-3,17-diol-17-propanoic acid lactone-->3,17-Dihydroxyandrost-5-ene-17-propionic acid phtassium salt-->Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[4-fluoro--->3,4-Dimethylbenzoic acid-->TRANS-3-CHLOROACRYLIC ACID-->7,8-Dihydroxycoumarin-->4,4'-DIFLUORODIPHENYLACETYLENE-->Propiolic acid, (p-chlorophenyl)- (8CI)-->PROPYNAL-->DI-P-TOLYLACETYLENE-->CIS-3-CHLOROACRYLIC ACID-->2-HEXYNOIC ACID |
| Hazard Information | Back Directory | [Chemical Properties]
viscous yellow liquid | [Uses]
Propiolic acid is an intermediate in monohalogenated acetylene
synthesis and a corrosion inhibitor for steel. | [Definition]
ChEBI: A terminal acetylenic compound that is a 3-carbon, straight-chain, monounsaturated fatty acid having one acetylenic bond. | [References]
[1] Elmer Raunio, Louis Remsberg and Jr. “Notes- Potassium Hydroxide as a Catalyst for the Condensation of Propiolic Acid or Propiolic Esters with Ketones.” The Journal of Organic Chemistry 25 8 (1960): 1436–1437.
[2] K. Okuma, Toshiyuki Shigetomi, M. Koda. “Reaction of Selenoketones with Propiolic Acid.” Phosphorus Sulfur and Silicon and The Related Elements 9 5 1 (2008): 1057–1060.
[3] Dirk Hollenw?ger* and Andreas J. Kornath. “Synthesis and Structure of Protonated Propiolic Acid.” The Journal of Organic Chemistry 89 16 (2024): 11421-11428 11421-11428. |
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