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Propyne

CAS 74-99-7 · C3H4
Hazard class
Danger — Flammable, Gas under pressure, Irritant / harmful
Pictograms
FlammableGas under pressureIrritant / harmful
H-statements
  • H220 Extremely flammable gas
  • H280 Contains gas under pressure; may explode if heated
  • H335 May cause respiratory irritation
  • H336 May cause drowsiness or dizziness
Workplace exposure limits
NIOSH REL TWA 1000 ppm (1650 mg/m3)
OSHA PEL TWA 1000 ppm (1650 mg/m3) NIOSH S84 (II-5)
IDLH 1700 ppm [10%LEL]
Occupational exposure limits — NIOSH Pocket Guide.
Synonyms
200-828-4 · Propyne · Methylacetylene · prop-1-yne · 1-PROPYNE · Allylene · Methyl acetylene · Acetylene, methyl-
Molecular weight
40.06 g/mol
Browse similar
Flammable · Gas under pressure · Irritant / harmful
Data source
Aggregated classification PubChem · REACH-registered
GHS aggregated by PubChem from registrant and agency submissions; not individually harmonised. Always verify against the official SDS before compliance use.
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GHS/CLP classification from authoritative registries (ECHA Annex VI, PubChem). SNRL is a free chemical safety search. Browse categories · API · Console
Guide only. This information is compiled from published safety data sheets and public regulatory registries and is believed correct at the date of publication shown. It is not all-inclusive and shall be used only as a guide. It does not replace the manufacturer’s current Safety Data Sheet, which governs in all cases. SNRL shall not be held liable for any injury, loss or damage resulting from handling of, or contact with, any product listed.