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Basic Information
CAS No.: 628-33-1
Name: 3-ethoxyprop-1-yne
Molecular Structure:
Molecular Structure of 628-33-1 (3-ethoxyprop-1-yne)
Formula: C5H8O
Molecular Weight: 84.1179
Density: 0.831g/cm3
Boiling Point: 82°C at 760 mmHg
Hazard Symbols: 3
Safety: Peroxidizes in air to form a product which explodes when heated to 80°C. When heated to decomposition it emits acrid smoke and fumes. See also PEROXIDES, INORGANIC; PEROXIDES, ORGANIC and ACETYLENE COMPOUNDS and ALKYNES.
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Chemistry

Product Name: 1-Propyne, 3-ethoxy- 
Registry Number: 628-33-1
Other Names: Ether, ethyl 2-propynyl (7CI,8CI) ; 1-Ethoxy-2-propyne ; 3-Ethoxy-1-propyne ; 3-Ethoxypropyne ; Ethyl 2-propynyl ether ; Ethyl propargyl ether 
Empirical Formula: C5H8O
Molecular Weight: 84.1164 
Surface Tension: 26.5 dyne/cm
Density: 0.831 g/cm3
Flash Point: °C
Enthalpy of Vaporization: 30.92 kJ/mol
Boiling Point: 82 °C at 760 mmHg
Vapour Pressure: 89 mmHg at 25°C
Following is the molecular structure of 1-Propyne, 3-ethoxy- (CAS NO.628-33-1) is:

Safety Profile

Peroxidizes in air to form a product which explodes when heated to 80°C. When heated to decomposition it emits acrid smoke and fumes. See also PEROXIDES, INORGANIC; PEROXIDES, ORGANIC and ACETYLENE COMPOUNDS and ALKYNES.