Acetylene gas cylinder description
Colorless, highly flammable gas and slightly lighter than air. Acetylene of 100 percent is odorless, but the commercial purity generated from calcium carbide has a distinctive, garlic like odor.
Acetylene is highly flammable and easily ignited, with a wide range of flammability in both air and oxygen. This gas produces a very hot flame (over 3000℃ or 5400℉) when combined with oxygen dissolves in acetone dissolved Acetylene. Special care is required during examination & filling the cylinder (Do not discharge the Acetylene cylinder at pressure above 15 psig (103kpa) & do not empty the cylinder below 5 psig).
Commercial production of Acetylene is done using Calcium carbide.
1.Lubrication of bottle production molds
2.Oxygen cutting and welding (oxyacetylene)
3.Industrial and chemical synthesis as raw material for some organic compounds as acetaldehyde, acetic acid, acetic anhydride, acetone
4.Fuel for atomic absorption instruments
5.Paper pulp bleaching
7.Manufacturing synthetic fibers & synthetic rubbers
Physical and Chemical Properties
Appearance : Dissolved gas. Colorless gas.
Odor : Poor warning properties at low concentrations. Garlic-like.
Odor : Mixture contains one or more component(s) which have the following odor: Garlic-like.
Odor threshold : No data available.
pH : Not applicable.
Melting point/range : -113 °F (-80.8 °C)
Boiling point/range : -120 °F (-84.2 °C)
Flash point : 0 °F (-18 °C)
Evaporation rate : Not applicable.
Upper/lower explosion/flammability limit : 83 %(V) / 2.4 %(V)
Vapor pressure : 638.14 psia (44.00 bara) at 68 °F (20 °C)
Water solubility : 1.185 g/l
Relative vapor density : 0.899 (air = 1)
Relative density : No data available.
Partition coefficient (noctanol/water) : Not applicable.
Auto-ignition temperature : 325 °C
Decomposition temperature : No data available.
Viscosity : Not applicable.
Molecular Weight : 26.04 g/mol
Density : 0.069 lb/ft3 (0.0011 g/cm3) at 70 °F (21 °C) Note: (as vapor)
Specific Volume : 14.77 ft3/lb (0.9221 m3/kg) at 70 °F (21 °C)
Hazards & Transportation:
H220:Extremely flammable gas.
H231:May react explosively even in the absence of air at elevated pressure and/or temperature.
H280:Contains gas under pressure; may explode if heated. May form explosive mixtures in air.
Major Hazard: fire
Toxicity: slightly narcotic
Fire Potential: 2.2-85% flammable range
DOTE Name: Acetylene Dissolved
DOT Label: flammable gas
Identification No.: UN-1001
Water capacity: 40/50 liters (standard)
Filling pressure at 21℃：18 bar
Acetylene produces a highly luminous flame (more of 3000℃), so the most common applications: Metal Fabrication, Marine Lighting & Atomic Absorption.
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