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Detail of > 7440-37-1

  • MSDS Download
  • CAS Number:
  • 7440-37-1
  • Name:
  • Argon

  • Formula:
  • Ar
  • Molecular Structure:
  • Synonyms:
  • 40Ar;Argon, isotope of mass 40; Argon-40; Khladon R 740; R 740
  • Molecular Weight:
  • 39.95
  • EINECS:
  • 231-147-0
  • Density:
  • 1.784(0ºC)
  • Melting Point:
  • -189 ºC
  • Boiling Point:
  • -186 ºC
  • Solubility:
  • slight Stability Stable. Inert. Toxicology Not hazardous according to Directive 67/548/EEC. The gas presents a risk of asphyxiation if a largequantity is released into a room of small volume.
  • Appearance:
  • colourless odourless gas
  • 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.Details
  • Transport Information:
  • UN 1006/1951
  • Deleted CAS:
  • 75714-55-5

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CAS No. 

7440-37-1 Argon

Gladys Effect of gas composition on the response of a thick-source alpha particle gas densimeter Effect of gas composition on the response of a thick-source alpha particle gas densimeter. Fjeld, Robert A.; Johnson, Randall M.; McFarland, Andrew R. (Dep. Environ. Syst. Eng., Cl
China (Mainland)   ISO  2404
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CAS No. 

7440-37-1 Argon

Argon Argon (Ar) is a colorless, nonflammable, inert gas. It acts as a simple asphyxiant by displacing air.
China (Mainland)   1116
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CAS No. 

7440-37-1 Argon

We produce (3N, 4N5 & 5N) methane, (3N, 3.5N & 4N) carbon monoxide, 6N (Ar, He, N2 & Ne), 5.5N liquid Argon, 5N carbon dioxide, SF6, 5N O2, 3N NO and many other specialty gases. Our products almost cover all range of the industrial applications. We can also supply allied gas equ
China (Mainland)   30
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  • Address:Jinfeng Road,Heshun, Lishui Town,Nanhai, Foshan, GuangDong P.R.China

CAS No. 

7440-37-1 Argon

Physical State: Gas Color: Colorless Odor: Odorless Molecular Weight: 39.95 Boiling Point: -302.6°F (-185.9°C) @ 1 atm Specific Gravity: 1.38 At 70°F (21.1°C) @ 1 atm, Air = 1 Freezing/Melting Point: -308.6°F (-189.2°C), @ 1 atm Vapor Pressure: Not App
China (Mainland)   62
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CAS No. 

7440-37-1 ARGON

ARGON
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CAS No. 

7440-37-1 ARGON

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CAS No. 

7440-37-1 ARGON

ARGON
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CAS No. 

7440-37-1 Argon

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7440-37-1 Argon

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7440-37-1 Argon

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7440-37-1 Argon

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7440-37-1 Argon

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7440-37-1 Argon

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CAS No. 

7440-37-1 Argon

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    Reference

    Effect of gas composition on the response of a thick-source alpha particle gas densimeter
    Effect of gas composition on the response of a thick-source alpha particle gas densimeter. Fjeld, Robert A.; Johnson, Randall M.; McFarland, Andrew R. (Dep. Environ. Syst. Eng., Clemson Uhniv., Clemson, SC 29631, USA). Rev.Chemicals with cas numbers 1333-74-0 and 7440-37-1 also play role. Sci. Instrum., 55(2), 244-9 (English) 1984. CODEN: RSINAK. ISSN: 0034-6748. DOCUMENT TYPE: Journal CA Section: 47 (Apparatus and Plant Equipment) The results of a theor. and exptl. study of the gas-compn. effect on the response of a thick-source alpha gas densimeter are presented. A math. description of gage response is developed and used to predict the response of a Po-210 densimeter. Gage response is measured with pure gases (He, CH4, N2, CO2, Ar) and gaseous mixts. having densities of 0.3-1.3 k/m3. Qual. predictions of the dependence of gage response on the gas compn., based on heuristic arguments, are verified exptl. and theor. At a given d., the response increases with increasing at. no. (Z) and decreasing ratio of Z to at. wt. The gas-compn. effect on gage response is more pronounced with low-Z than high-Z gases. The presence of H in a gas sample significantly decreases gage response. Theor. predictions show very good agreement with exptl. measurements. The total response uncertainty is calcd. for gases having at. nos. near Z = 7. The uncertainty of the d. measurement is <2.5% at a d. of 1 kg/m3. .
    Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico
    Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico. Mazor, E.; Truesdell, A. H. (Weizmann Inst. Sci., Rehovot, Israel). Geothermics, 13(1-2), 91-102 (English) 1984. CODEN: GTMCAT.There are some reagents with their cas registry numbers 7440-37-1 and 7440-01-9 are used in this study. ISSN: 0375-6505. DOCUMENT TYPE: Journal CA Section: 53 (Mineralogical and Geological Chemistry) Section cross-reference(s): 52 The concns. were detd. of He, Ne, Ar, Kr, and Xe, mass spectrometrically, in water samples collected during 1977 from producing wells at Cerro Prieto. Pos. correlations between concns. of radiogenic (He and 40Ar) and atm. noble gases (Ne, Ar and Kr) suggest the following dynamic model: the geothermal fluids originated from meteoric water that penetrated to >2500 m depth (below the level of first boiling) and mixed with radiogenic He and 4Ar formed in the aquifer rocks. Subsequently, small amts. of steam were lost by a Raleigh process (0-3%) and mixing with shallow cold water occurred (0-30%). Noble gases are sensitive tracers of boiling in the initial stages of 0-3% steam sepn. and complement other tracers, such as Cl or temp., which are effective only beyond this range. .

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