Cooling aluminum flake

Stearyl Alcohol Reduction of ethyl stearate in the presence of lithium aluminum hydride yields stearyl alcohol, which contains not less than 90% of 1-octadecanol. It is available as flakes or granules which are white in color and possesses a characteristic odor. It is insoluble in water and melts at 55-60 °C. Stearyl alcohol has stiffening, viscosity-enhancing, and emollient properties and hence is used in the preparation of hydrophobic ointments and creams. Its weak emulsifying properties help in improving the water-holding capacity of ointments. Hypersensitivity reactions are sometimes observed due to the presence of some minor impurities. Stearyl alcohol preparations are compatible with acids and alkalis and are preserved in well-closed containers in a cool and dry place [6]. 

After cooling and by virtue of their shape, these hillocks form singularities where stress concentrations will encourage cracking and then flaking of any brittle thin passivation film after it has been deposited on the aluminum (Figure 5). 

For ternary system measurements, the two solids to be studied are first mixed to provide intimate contact. The minimum melting point for the solid-solid binary at atmospheric conditions occurs at the eutectic composition. A solid mixture of this composition is prepared in the expectation that a similar ratio of the components will be present in the liquid phase at the first melting point in the ternary mixture. The solid mixture is melted and stirred to obtain a homogenous liquid. Some of the liquid is drawn into a capillary tube. The remaining liquid is poured out onto a clean sheet of aluminum foil. After the binary liquid cools and solidifies, the thin sheet of solid material is broken up into "flakes" for loading into the view cell. 

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