Chinese name: ultra-high purity argon

Product purity: 99.9999%

Packing specification: 44L

Filling capacity: 5.5 cubic meters

Filling pressure: 13.5mpa

English name: Argon gas

Molecular formula: Ar

Molecular weight: 39.95

Chinese name: argon

English name: Argon gas

Alias: Liquid Argon; Argon; Argon

Chemical formula: Ar

Molecular weight: 39.95

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CAS Registry Number: 7440-37-1

EINECS accession number: 231-147-0

Melting point: -189.2°C

Boiling point: -185.7°C

Water solubility: slightly soluble in water

Density: relative density (water=1) 1.40 (-186℃)

Appearance: colorless and odorless

Flash point: none

Application: used for bulb inflation and arc welding of stainless steel, magnesium, aluminum, etc.

use:

A rare gas. Used as a shielding gas for arc welding (cutting) of stainless steel, magnesium, aluminum, and other alloys. It is also used in the smelting of steel, aluminum, titanium and zirconium. Argon emits a purple glow when discharging, and it is also used in lighting technology and filled fluorescent lamps. Photoelectric tube, lighting tube, etc.

In the brewing process, the filling in the beer barrel can replace oxygen to prevent the raw material in the beer barrel from being oxidized into acetic acid.

The heat treatment process is also used to replace nitrogen and ammonia, and the effect is more than that of nitrogen and ammonia. The use of argon to protect the bending effect of stainless steel during heat treatment is better and not easy to break.

Health hazards: non-toxic under normal atmospheric pressure. At high concentrations, the partial pressure of oxygen decreases and asphyxiation occurs. Argon concentration above 50% can cause severe symptoms; when it exceeds 75%, death can occur within a few minutes. When the concentration of argon in the air increases, breathing speeds up first, lack of concentration, and ataxia. Subsequently, fatigue, irritability, nausea, vomiting, coma, convulsions, and death. Liquid argon can cause skin frostbite; eye contact can cause inflammation. Toxicological information and environmental behavioral hazard characteristics: In case of high heat, the internal pressure of the container increases, and there is a danger of cracking and explosion

first-aid

1. Cut off the gas source and quickly evacuate the contaminated area. Personnel handling the leakage should wear self-contained positive pressure respirators, and the liquid argon should be equipped with antifreeze protective gear. If the gas cylinder leaks and cannot be blocked, move the gas cylinder to an open and safe place.

2. Protective measures Respiratory system protection: generally no special protection is required. But when the oxygen concentration in the air in the workplace is less than 18%, you must wear an air respirator, oxygen respirator or long tube mask

Precautions for storage

Store in a ventilated warehouse, away from fire and heat sources; gas cylinders should have measures to prevent falling. Cryogenic liquid storage tanks larger than 10 cubic meters cannot be placed indoors. The bottled gas product is a high-pressure filling gas, which should be used after decompression and decompression. The packaged gas cylinders have a service life limit. Any gas cylinders that expire must be sent to a department for safety inspection before they can be used. When exhaust gas is used in each bottle of gas, the residual pressure in the bottle should be kept at 0.5MPa, and the residual pressure should not be lower than 0.25MPa. The bottle valve should be closed to ensure gas quality and safety in use. Bottled gas products should be sorted and stacked during transportation, storage and use. Combustible gas and combustion-supporting gas should not be stacked together, and it should not be near open flames or heat sources. Do not touch fire, oil wax, explode, or re-throw. , Do not hit, it is strictly forbidden to start arc or arc on the cylinder, and it is strictly forbidden to load and unload.

Fire fighting method: This product is non-flammable. Cut off the gas source. Spray water to cool the container, if possible, move the container from the fire scene to an open place