Argon cas no:7440-37-1
Synonyms: 40Ar;Argon, isotope of mass 40; Argon-40; Khladon R 740; R 740
NameArgon
CAS7440-37-1
Synonyms40Ar;Argon, isotope of mass 40; Argon-40; Khladon R 740; R 740
EINECS(EC#)231-147-0
Molecular FormulaAr
Molecular Weight39.95
Appearancecolourless odourless gas
storage tempKeep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass2.2
Safety
A simple asphyxiant gas. As an inert gas, it has no specific inherent dangerous properties. Gases of this type have no specific toxicity effect, but they act by excluding O2 from the lungs. The effect of simple asphyxiant gases is proportional to the extent to which they diminish the amount (partial pressure) of O2 in the air that is breathed. The oxygen may be diminished to 75% of its normal percentage in air before appreciable symptoms develop, and this in turn requires the presence of a simple asphyxiant in a concentration of 33% in the mixture of air and gas. When the simple asphyxiant reaches a concentration of 50%, marked symptoms can be produced. A concentration of 75% is fatal in a matter of minutes. The first symptoms produced by simple asphyxiant gases such as argon are rapid respirations and air hunger. Mental alertness is diminished and muscular coordination is impaired. Later, judgment becomes faulty and all sensations are depressed. Emotional instability often results and fatigue occurs rapidly. As the asphyxia progresses, there may be nausea and vomiting, prostration, and loss of consciousness, and finally, convulsions, deep coma, and death.
Safety Statements:? 38?
S38:In case of insufficient ventilation, wear suitable respiratory equipment.
RIDADR:? UN 1006 2.2
F:? 4.5-31
HazardClass:? 2.2
RTECS:? CF2300000
