Synonym(s): Acetylenecarboxylic acid, Propargylic acid
Formula: HC CCO2H
Formula weight: 70.05
Purity: 98+%
CAS Number: 471-25-0
UN Number: UN2920
Hazard Class: 8
Packing Group: II
Harmonized Tariff Code: 2916.19
Hazard Statements: H301-H310-H314-H318-H226
Toxic if swallowed. Fatal in contact with skin. Causes severe skin burns and eye damage. Causes serious eye damage. Flammable liquid and vapour.
Precautionary Statements: P210-P301+P310-P303+P361+P353-P305+P351+P338-P361-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Remove/Take off immediately all contaminated clothing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 24/25-34
Toxic in contact with skin and if swallowed. Causes burns.
Safety Phrases: 20-23-26-27-36/37/39-45-60
When using do not eat or drink. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Take off immediately all contaminated clothing. Wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and/or its container must be disposed of as hazardous waste.
Form: Colorless to pale brown liquid
Density: 1.136
Melting point: 18°
Boiling point: 102°/200mm
Flash point: 58°(136°F)
Refractive Index: 1.4330
Merck: 14,7824
EINECS: 207-437-8
MDL: MFCD00004360
RTECS: UD9300000
Beilstein: 878176