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8.41640 EMD Millipore

Acetylenecarboxylic acid

Acetylenecarboxylic acid for synthesis. CAS 471-25-0, molar mass 70.04 g/mol., for synthesis

Synonym: Propiolic Acid, Propargylic acid

  • CAS Number 471-25-0

  • Linear Formula C₃H₂O₂

  • Molecular Weight 70.04 g/mol

  •  EC Number 207-437-8

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Properties

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packaging   10 ml in Glass bottle (8416400010)
bp   153 - 157 °C (1013 hPa) (decomposition)
density   1.136 g/cm3 (20 °C)
flash point   58 °C
mp   18 °C
LD 50 oral   LD50 Rat 100 mg/kg
storage temp.   Store below +30°C.
specifications   Assay (HPLC, area%): ≥ 97.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.135 - 1.139
  Identity (IR): passes test
  Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

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Safety & Documentation

Safety Information

HS Code 
2916 19 95
Hazard Statement(s) 
H226: Flammable liquid and vapour.
H301: Toxic if swallowed.
H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
3 Flammable liquids
WGK 
WGK 3 highly water endangering
Disposal 
4
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 2920 , 8 (3), II
Declaration (transport by air) IATA-DGR 
UN 2920 , 8 (3), II
Declaration (transport by sea) IMDG-Code 
UN 2920 , 8 (3), II, Segregation Group: 1 (Acids)
Categories of danger 
toxic, corrosive
R Phrase 
R 25-34-37
Toxic if swallowed.Causes burns.Irritating to respiratory system.
S Phrase 
S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.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).
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