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Yellowish flame

Ammonia as a reducing agent. Ammonia gas will not burn in air but it does burn in oxygen with a yellowish flame after ignition. A convenient apparatus is shown in Figure 9.3. By reversing the gas supplies it can easily be shown that oxygen will also burn in ammonia. [Pg.218]

When large spherical AP particles dg = 3 mm) are added, large flamelets are formed in the dark zone.Pl Close inspection of the AP particles at the burning surface reveals that a transparent bluish flame of low luminosity is formed above each AP particle. These are ammonia/perchloric acid flames, the products of which are oxidizer-rich, as are also observed for AP composite propellants at low pressures, as shown in Fig. 7.5. The bluish flame is generated a short distance from the AP particle and has a temperature of up to 1300 K. Surrounding the bluish flame, a yellowish luminous flame stream is formed. This yellowish flame is produced by in-terdiffusion of the gaseous decomposition products of the AP and the double-base matrix. Since the decomposition gas of the base matrix is fuel-rich and the temperature in the dark zone is about 1500 K, the interdiffusion of the products of the AP and the matrix shifts the relative amounts towards the stoichiometric ratio, resulting in increased reaction rate and flame temperature. The flame structure of an AP-CMDB propellant is illustrated in Fig. 8.1. [Pg.236]

Hydrogen is inflammable, and extinguishes flame. When pure, it burns quietly, with a pale yellowish flame at the surface in contact with air.—Brande. [Pg.122]

Ammonium chlorate, NHcombustible substances. A mixture of ammonium chlorate and shellac in a ratio 10 2 burns with a rate of 1.2- 1.3 nira per second, producing a slight yellowish flame. This burning rate resembles that of potassium chlorate composition. [Pg.97]

Green bluish Phosphorus (P) The phosphorus color is not very decisive, but often aids in the identification of a phosphate. Adding concentrated sulfuric acid it gives a yellowish flame. [Pg.769]

Saturated activity for Na-24 in Whale D at 1 MW is 5267 mCi/gm. Na-24 half life is 15 hours and it emits 4.13 MeV of rays and 1.84 MeV energy per disintegration (average energy). Na produces a yellowish flame when burned and is highly reactive with water. [Pg.279]


See other pages where Yellowish flame is mentioned: [Pg.93]    [Pg.352]    [Pg.352]    [Pg.327]    [Pg.74]    [Pg.208]    [Pg.1032]    [Pg.327]    [Pg.327]    [Pg.327]    [Pg.327]    [Pg.183]    [Pg.116]    [Pg.104]    [Pg.7]    [Pg.28]    [Pg.20]    [Pg.147]    [Pg.12]    [Pg.182]   
See also in sourсe #XX -- [ Pg.236 , Pg.352 ]




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