Ordinary high purity industrial gas

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Acetylene


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.



Applications
Acetylene produces a highly luminous flame (more of 3000℃), so the most common applications: Metal Fabrication, Marine Lighting & Atomic Absorption.
Industry
Glass
Machine/Metal Construction
Chemical
Atomic
Paper
Other application
Usage
Lubrication of bottle production molds
Oxygen cutting and welding (oxyacetylene)
Industrial and chemical synthesis as raw material for some organic compounds as acetaldehyde, acetic acid, acetic anhydride, acetone.
Fuel for atomic absorption instruments
Paper pulp bleaching
Water purification
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 Acetylene 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.



Hazard Statements
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
Odour: Garlic-like
DOTE Name: Acetylene Dissolved
DOT Label: flammable gas
Identification No.: UN-1001                          
Hazard Class/Division: 2.1
Cylinder data
Color: white
Valve: CGA300
Water capacity: 40/50 liters (standard)
Contents: 5.0/7.5kg
Filling pressure at 21℃: 18 bar
Gas specifications
Industrial grade: 99.0%

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