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Propyne Structure

Propyne

  • Product NamePropyne
  • CAS74-99-7
  • CBNumberCB3144949
  • MFC3H4
    Lewis structure
  • MW40.06
  • EINECS200-828-4
  • MDL NumberMFCD00036235
  • MOL File74-99-7.mol
  • MSDS FileSDS

Chemical Properties

Melting point -102.7 °C (lit.)
Boiling point -23.2 °C (lit.)
Density  0.6070
vapor pressure  204.6 mm Hg ( −49.5 °C)
refractive index  1.3863
Flash point -51 °C
solubility  Soluble in alcohol, benzene, and chloroform (Weast, 1986)
form  gas
color  Colorless, flammable gas with a sweet odor
Water Solubility  3,640 mg/L at 20 °C (quoted, Verschueren, 1983)
Henry's Law Constant 0.11 at 25 °C (Hine and Mookerjee, 1975)
Exposure limits NIOSH REL: TWA 1,000 ppm (1,650 mg/m3), IDLH 1,700 ppm; OSHA PEL: TWA 1,000 ppm; ACGIH TLV: TWA 1,000 ppm (adopted).
InChIKey MWWATHDPGQKSAR-UHFFFAOYSA-N
CAS DataBase Reference 74-99-7(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 086L40ET1B
NIST Chemistry Reference Propyne(74-99-7)
EPA Substance Registry System Propyne (74-99-7)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H220-H280-H335
Precautionary statements P210-P410+P403
Hazard Codes  F,Xi
Risk Statements  11-37-43
Safety Statements  16-36-38-37
RIDADR  UN 1954 2.1
WGK Germany  -
RTECS  UK4250000
HazardClass  2.1
PackingGroup  II
HS Code  2901290000
Hazardous Substances Data 74-99-7(Hazardous Substances Data)
IDLA 1,700 ppm [10% LEL]
NFPA 704:
4
1 3

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Propyne Chemical Properties,Usage,Production

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