High-Purity Acetylene
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WEB: std-coatings.com
Product Details
Product Names
High-Purity Acetylene
Industrial Acetylene
Acetylene
Purity
High-Purity Acetylene: ≥99.9%
Industrial Acetylene: ≥98%
Impurity Content (ppm)
| Impurity | High-Purity Acetylene | Industrial Acetylene |
|---|---|---|
| Water (H₂O) | – | – |
| Carbon Monoxide (CO) | – | – |
| Carbon Dioxide (CO₂) | – | – |
| Hydrocarbons (THC) | – | – |
| Phosphine | Silver nitrate paper shows no color change | – |
| Hydrogen Sulfide (H₂S) | Silver nitrate paper shows no color change | – |
Packaging
Filled in 40L steel cylinders.
Applications
Recommended for industrial use; used in the sugar industry, alkali industry, lead white production, as well as in cold drinks, fire extinguishing, and organic synthesis. Please conduct a risk assessment before use.
Safety Information
CAS Number: 74-86-2.
Physical and Chemical Properties: Colorless and odorless gas, industrial grade has an unpleasant garlic odor. Slightly soluble in water and ethanol, soluble in acetone, chloroform, benzene. Melting point (℃): -81.8 (119kPa); Boiling point (℃): -83.8; Relative density (water=1): 0.62; Relative density (air=1): 0.91; Saturation vapor pressure (kPa): 4460 (20℃); Flash point (℃): <-50; Combustion heat (kJ/mol): 1298.4; Critical temperature (℃): 35.2; Critical pressure (MPa): 6.19; Upper explosion limit (v%): 100; Lower explosion limit (v%): 2.5; Ignition temperature (℃): 305.
Combustion and Explosion Hazards: Flammable, forms explosive mixtures with air. Highly prone to combustion and explosion. Can form explosive mixtures with air, which can ignite and explode upon contact with open flames or high heat. Reacts violently with oxidizers. Compression or heating can cause violent explosions. Reacts violently with fluorine, chlorine, etc. Can form explosive substances with compounds of copper, silver, mercury, etc.
Firefighting Methods: Cut off the gas supply. If the gas supply cannot be cut off, do not extinguish the fire at the leak site. Firefighters must wear air respirators and full protective clothing, and fight the fire from the upwind direction. Remove containers from the fire area if possible. Cool the containers with water until the fire is out. Fire extinguishing agents: water spray, foam, carbon dioxide, dry powder.
Health Hazards: Has a weak anesthetic effect. Inhalation of high concentrations can cause simple asphyxiation. Exposure to 20% concentration shows obvious symptoms of oxygen deficiency; inhalation of high concentrations initially causes excitement, loquaciousness, emotional instability, followed by dizziness, headache, nausea, vomiting, ataxia, somnolence; severe cases may lead to coma, cyanosis, disappearance of pupillary light reflex, weak and irregular pulse. Toxicity increases when mixed with phosphine, hydrogen sulfide, and attention should be paid.
First Aid Measures: Inhalation: Quickly move to a fresh air area. Keep the airway clear. If breathing is difficult, administer oxygen. If breathing stops, perform artificial respiration immediately. If breathing and heartbeat stop, perform artificial respiration and external chest compressions immediately.
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