Home > Name List By m > molecular oxygen

CAS No 7782-44-7 , molecular oxygen

  • Name: molecular oxygen
  • Synonyms: Hyperoxia; Molecular oxygen; Pure oxygen; Oxygenium; Liquid oxygen; Sauerstoff;molecular oxygen; Dioxygen;oxygen molecule;
  • CAS Registry Number:
  • Transport: UN 1014/1072
  • Melting Point: -218 ºC
  • Flash Point: none
  • Boiling Point: -183 ºC
  • Safety Statements: R8
  • Hazard Symbols: (Gaseous) Moderate fire risk as oxidizing agent; therapeutic overdoses can cause convulsions. (Liquid) May explode on contact with heat or oxidizable materials. Irritant to skin and tissue.
  • Flash Point: none
  • EINECS: 231-956-9
  • Molecular Weight: 31.9988
  • InchiKey: MYMOFIZGZYHOMD-UHFFFAOYSA-N
  • InChI: InChI=1S/O2/c1-2
  • Risk Statements: S17
  • Molecular Formula: O2
  • Molecular Structure:CAS No:7782-44-7 molecular oxygen
Search by region :

Select to

7782-44-7; 132259-10-0 OXYGEN

  • United States Cambridge Isotope []
  • Tel: +1-978-749-8000
  • Fax: +1-978-749-2768
  • Address: Cambridge Isotope Laboratories 50 Frontage Road Andover, MA 01810-5413 ,United States
Contact Supplier

7782-44-7; 132259-10-0 Air

  • United States Matheson Tri-Gas Inc. []
  • Tel: +1 800-424-9300
  • Fax: +1 215-619-0458
  • Address: 166 Keystone Drive Montgomeryville, PA 18936 ,United States
Contact Supplier

7782-44-7; 132259-10-0 OXYGEN

  • United Kingdom International Gases and Chemicals Ltd. []
  • Tel: +44-0-1782-565556
  • Fax: +44-0-1782-562882
  • Address: Unit 5 Speedwell Road Parkhouse East, Newcastle-under-Lyme Staffordshire ST5 7RG United Kingdom ,United Kingdom
Contact Supplier

7782-44-7; 132259-10-0 Oxygen

Contact Supplier

7782-44-7; 132259-10-0 Oxygen

  • China Zhejiang Juhua Co., Ltd. []
  • Tel: 86-570-3091778 3096702 3096447 3098577 3095047
  • Fax: 86-570-3091777
  • Address: Quzhou , Zhejiang, China ,AnhuiChina
Contact Supplier

7782-44-7; 132259-10-0 Oxygen

Contact Supplier

7782-44-7; 132259-10-0 Oxygen

Contact Supplier

7782-44-7; 132259-10-0 Oxygen

  • United States Praxair []
  • Fax: +1-716-879-2040
  • Address: ,United States
Contact Supplier

Select to

References of molecular oxygen
Title: Oxygen
CAS Registry Number: 7782-44-7
Literature References: O; at. wt 15.9994; at. no. 8; valence 2. Group VIA (16). Occurs normally as the diatomic gas O2, also as ozone O3. Atomic oxygen (O) can be prepd. Three naturally occurring isotopes: 16 (99.759%); 17 (0.037%); 18 (0.204%); artificial radioactive isotopes: 13-15; 19; 20. The most abundant element on earth; makes up 46.6% of earth's crust; 20.95% by vol of dry air. Obtained on a large scale by liquefaction of air. First obtained by Scheele in 1771 and independently by Priestley in 1774. Monograph: M. Ardon, Oxygen: Elementary Forms and Hydrogen Peroxide (Benjamin, New York, 1965) 106 pp. Review of oxygen and its compounds: Ebsworth et al., in Comprehensive Inorganic Chemistry vol. 2, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 685-794; A. H. Taylor in Kirk-Othmer Encyclopedia of Chemical Technology vol. 16 (Wiley-Interscience, New York, 3rd ed., 1981) pp 653-673.
Properties: Colorless, odorless, tasteless, neutral gas; supports combustion. d0 (gas) 1.429 g/l; d-183 (liquid) 1.14 g/ml. mp -218.4°. bp -182.96°. Critical temp -118.95°. Critical press. 50.14 atm. Heat of vaporization (-183°): 50.9 cal/g. Usually marketed under pressure in metal cylinders. One vol gas dissolves in 32 vols water at 20°; in 7 vols alcohol at 20°; also sol in other organic liquids and usually to a greater extent than in water. Caution: Avoid smoking, flames, electric sparks; explosion hazard.
Melting point: mp -218.4°
Boiling point: bp -182.96°
Density: d0 (gas) 1.429 g/l; d-183 (liquid) 1.14 g/ml
Use: In oxyhydrogen or oxyacetylene flame for welding metals and for lighting (calcium light, etc); submarine work by divers, propellant for rockets. In the production of synthesis gas which can be used in the Fischer-Tropsch process for liquid fuels.
Therap-Cat: Medicinal gas to relieve hypoxia; at hyperbaric pressures in cardiac and other surgery, anaerobic infections, carbon monoxide poisoning; in cryotherapy (liq form).
Therap-Cat-Vet: In hypoxia and in conjunction with volatile anesthetics.