Grain, the

The term gasohol has come into wide usage to identify, generally, a blend of gasoline and ethanol, with the latter derived from grain. The term may also be appHed to blends of methanol or other alcohols in gasolines or other hydrocarbons, without regard to sources of components. 

Wrought or extmded lead—teUurium (0.035—0.10 wt %) aUoys produce extremely fine grains. The binary aUoy is, however, susceptible to recrysta11i2ation. The addition of copper or sUver reduces grain growth and retains the fine grain si2e. Because teUurium is a poison for sealed lead—acid batteries, the teUurium content of lead and lead aUoys used for such purposes is usuaUy restricted to less than 1 ppm. 

For negative films, the electrochemical reduction properties of the reducing agents must be properly positioned to provide rapid amplification of exposed grains and much slower spontaneous amplifica tion of unexposed grains. The abiUty to discriminate between exposed and unexposed grains is a... 

Since the objective of these processes is die formation of a smooth layer of the deposit, probably hne-grained, the efficiency considerations which apply to... 

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