T9693230
Propiolic Acid , >97.0%(GC)(T) , 471-25-0
Synonym(s):
Acetylenecarboxylic acid;Propynoic acid
CAS NO.：471-25-0
Empirical Formula: C3H2O2
Molecular Weight: 70.05
MDL number: MFCD00004360
EINECS: 207-437-8
Update time: 2022-07-08
PRODUCT 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 | n |
| 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. |
| InChI | 1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5) |
| InChIKey | UORVCLMRJXCDCP-UHFFFAOYSA-N |
| SMILES | OC(=O)C#C |
| 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) |
Description and Uses
Reagent employed in the synthesis of transition metal complexes, haloalkyl propiolates, and halopropenoates.
Safety
| Symbol(GHS) |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H310-H301-H314-H226 |
| Precautionary statements | P501-P270-P262-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P361+P364-P303+P361+P353-P301+P330+P331-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310-P403+P235-P405 |
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter |
| 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 |
| F | 3-8 |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 29161980 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 2 Dermal Acute Tox. 3 Oral Eye Dam. 1 Flam. Liq. 3 Skin Corr. 1B |
| 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. |
| REACH Registrations | Active |
| Limited Quantities | 1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
