Product information 

Propyne Basic information

Product Name:	Propyne
Synonyms:	METHYLACETYLENE;1-PROPYNE;ALLYLENE;PROPYNE;Acetylene, methyl-;CH3CequivCH;methyl-acetylen;Propine
CAS:	74-99-7
MF:	C3H4
MW:	40.06
EINECS:	200-828-4
Product Categories:	Allyl Monomers;Monomers;Polymer Science;Chemical Synthesis;Compressed and Liquefied Gases;Synthetic Reagents;Chemical Synthesis;Specialty Gases;Synthetic Reagents
Mol File:	74-99-7.mol

Propyne Chemical Properties

mp	−102.7 °C(lit.)
bp	−23.2 °C(lit.)
vapor pressure	204.6 mm Hg ( −49.5 °C)
Fp	-51 °C
form	gas
CAS DataBase Reference	74-99-7(CAS DataBase Reference)
NIST Chemistry Reference	Propyne(74-99-7)
EPA Substance Registry System	1-Propyne(74-99-7)

Safety Information

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
Hazardous Substances Data	74-99-7(Hazardous Substances Data)

MSDS Information

Provider	Language
SigmaAldrich	English

Propyne Usage And Synthesis

General Description	A colorless liquefied gas with a sweet odor. Mp: -104°C, bp: -23.1°C. Insoluble in water, soluble in ethanol, chloroform and benzene. Moderately toxic by inhalation. Used as a speciality fuel. Denser than air. Vapors may ignite at distant sources of ignition and flash back.
Air & Water Reactions	Highly flammable. PEROXIDE FORMING WHICH LEADS TO EXPLOSIONS
Reactivity Profile	Propyne is highly flammable. The liquid material in cylinders contains about 30% propadiene. Detonation may occur at 95° C [MCA Case History No. 632]. Reacts exothermically with many oxidizing agents and with some reducing agents as well. May react with silver, copper, and mercury salts in aqueous solution to give explosive acetylides. Incompatible with brass that contains more than 65% copper, with other copper-containing alloys, with Monel metal, with neoprene, polyethylene, and, to a lesser extent, with Teflon. May enflame in air in the presence of Co, Hg, Hg salts, K, Ag, Ag salts, RbH, CsH, halogens, HNO3, NaH. Can decompose explosively when compressed to 4.5 to 5.6 atmospheres. Moderate explosion hazard when exposed to heat or flame or by spontaneous chemical reaction. Has been known to decompose explosively at high pressures and moderate temperatures in the absence of air.

 Company information

 Henan sunlake enterprise corporation is located in Henan Province , The central plain of China , Which enjoys favorable geogeaphical position and convenient transportion, The com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .

  Sunlake is a professional manufacturer engaged in producing and selling chemicals,including Organic & inorganic chemicals , pigments & Dyestuffs ,  Water treatment chemicals , Food & FEED additives and others . these products have been being well exported to europe , southeast Asia , the Middle East ,  Africa , South America and some other countries and areas.

    We sincerely welcome foreign friends to visit our plant for cooperation. With the idea of "quality first,credit priority, Excellent service", We are highly acknowledged by customers for good quality and competitive price. More importantly , the company has a strong R & D team, who are professional engineers and scholars with Ph. D. .So we are confident to serve you  better with our high - quality products and professional team.

    We are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market.

    We  welcome any serious inquiries from all customers of the world, and sincerely hope to cooperate.