Accession Number:

AD0435542

Title:

A RESEARCH PROGRAM FOR UNDERSTANDING THE MECHANISMS OF FLAME INHIBITION

Descriptive Note:

Technical documentary rept. for 15 Nov 1962-15 June 1964

Corporate Author:

MONSANTO RESEARCH CORP DAYTON OH

Personal Author(s):

• Skinner, G. B.
• Snyder, A. D.
• Ringrose, G. H.

Report Date:

1964-01-01

Pagination or Media Count:

141.0

Abstract:

The effects of inhibitors on the diborane-air and pentaborane-air reactions were studied by measuring flame speeds of borane-air-inhibitor mixtures at low pressures, and by the shock tube technique. The best flame inhibitors were the hydrocarbons and halogenated hydrocarbons which had been found earlier to inhibit hydrogen air flames. Some of these inhibitors were ineffective in lengthening ignition delays in the shock tube, indicating that a different mechanism may apply in flame propagation than in shock ignition. Detailed kinetic calculations of the effects of CH4, C2H4, CF3Br and C2F4Br2 on the hydrogen-oxygen reaction have yielded values for the rate constants of the reactions whereby these inhibitors remove H atoms from the reacting system.

Descriptors:

• *REACTION KINETICS
• *PENTABORANES
• *DIBORANES
• AIR
• VELOCITY
• LOW PRESSURE
• HYDROGEN
• GASES
• MIXTURES
• OXIDATION
• CHEMICAL REACTIONS
• HYDROCARBONS
• VISIBLE SPECTRA
• ADDITIVES
• IGNITION
• FLAMES
• ARGON
• HALOGENATED HYDROCARBONS
• PYROLYSIS
• DETONATIONS
• EMISSIVITY
• ULTRAVIOLET SPECTRA
• SHOCK TUBES
• MOLECULAR SPECTROSCOPY
• SCIENTIFIC RESEARCH
• HIGH TEMPERATURE

Subject Categories:

• Inorganic Chemistry
• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE