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8.22120 EMD Millipore

2-Pentyne

2-Pentyne for synthesis. CAS 627-21-4, molar mass 68.11 g/mol., for synthesis

Synonym: Ethylmethylacetylene

  • CAS Number 627-21-4

  • Linear Formula C₅H₈

  • Molecular Weight 68.11 g/mol

  •  EC Number 210-989-2

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Properties

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packaging   10 ml in Glass bottle (8221200010)
expl. lim.     1.2 - 8.8 %(V)
vapor pressure   254 hPa (20 °C)
density   0.71 g/cm3 (20 °C)
flash point   -20 °C
mp   -109 °C
storage temp.   Store at +2°C to +8°C.
specifications   Assay (GC, area%): ≥ 99.0 % (a/a)
  Density (d 20 °C/ 4 °C): 0.710 - 0.712
  Identity (IR): passes test

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Safety & Documentation

Safety Information

HS Code 
2901 29 00
Hazard Statement(s) 
H225: Highly flammable liquid and vapour.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P235: Store in a well-ventilated place. Keep cool.
Storage class 
3 Flammable liquids
WGK 
WGK 3 highly water endangering
Disposal 
1
Strongly contaminated halogen-free organic solvents: container A.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Flammable  Flammable
Hazard Symbols 
Irritant  Irritant
Declaration (railroad and road) ADR, RID 
UN 1993 , 3, II
Declaration (transport by air) IATA-DGR 
UN 1993 , 3, II
Declaration (transport by sea) IMDG-Code 
UN 1993 , 3, II
Categories of danger 
highly flammable, irritant
R Phrase 
R 11-36/37/38
Highly flammable.Irritating to eyes, respiratory system and skin.
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