Primary oxygen balance

Table 1.2 Oxygen balance of some primary, secondary and tertiary explosives.

It was also established that primary plosophores are responsible for high power and brisance of expls and these are at the maximum in compds whose oxygen balance to C0a (see under Available Oxygen) is favorable (close to zero). The relationship betw power and oxygen balance vanishes when one considers secondary plosphores and further, with few exceptions, secondary... 

Larger particles of charcoal in a pyrotechnic mixture will produce attractive orange sparks in the flame, a property that is often used to advantage by the fireworks industry. In this case, they are considered to be an added component that does not participate in the primary pyrotechnic reaction, and are not included in oxygen balance calculations. 

Lower flammability limit (LFL) Minimum ignition energy Molecular explosive Muzzle velocity Neutral-burning propellant Oxygen balance Percussive explosive Point of origin Primary explosive Primers... 

Stratospheric ozone is in a dynamic equilibrium with a balance between the chemical processes of formation and destruchon. The primary components in this balance are ultraviolet (UV) solar radiation, oxygen molecules (O2), and oxygen atoms (O) and may be represented by the following reactions ... 

The acetoxy dienone (218) gives phenol (220). Here, an alternative primary photoreaction competes effectively with the dienone 1,5-bonding expulsion of the lOjS-acetoxy substituent and hydrogen uptake from the solvent (dioxane). In the case of the hydroxy analog (219) the two paths are balanced and products from both processes, phenol (220) and diketone (222), are isolated. In the formation of the spiro compound (222) rupture of the 1,10-bond in the dipolar intermediate (221) predominates over the normal electron transmission in aprotic solvents from the enolate moiety via the three-membered ring to the electron-deficient carbon. While in protic solvents and in 10-methyl compounds this process is inhibited by the protonation of the enolate system in the dipolar intermediate [cf. (202), (203)], proton elimination from the tertiary hydroxy group in (221) could reverse the efficiencies of the two oxygens as electron sources. 

The primary functions of the blood may be considered in a broad sense to be the following (1) metabolic regulation—transport of oxygen, carbon dioxide, metabolites, hormones (2) physical and chemical regulation—temperature, acid-base balance, and osmotic pressure and fluid balance and (3) regulation of body defenses—protection against infection by the action of antibodies, leukocytes, and other mechanisms and prevention of hemorrhage. 

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