Thermal conductivity sodium chloride

This resistance to thermal degradation was also verified by IR spectroscopy. The spectroscopic experiment was conducted by spin-coating the polymer onto a sodium chloride plate, recording the IR spectrum, heating the sample to 200°C in air for one hour and reexamining the spectrum. Within experimental error, the two spectra were identical. 

An appreciation of the properties of liquid electrolytes can be gained by a comparison between molten ice (water) and molten sodium chloride (Table 5.2). Both liquids are clear and colorless. Their viscosities, thermal conductivities, and surface tensions near their melting points are not very different. 

There is also a heating effect due to ionic conduction, since the ions (sodium, chloride, and hydroxyl) in the water inside materials are accelerated and decelerated by the changing electric field. The collisions which occur as a result of the rapid accelerations and decelerations lead to an increase in the random kinetic (thermal) energy of the material. This type of heating is not significantly dependent on either temperature or frequency, and the power developed per unit volume P from this mechanism is... 

The thermal conductivity of an aqueous solution of a salt is generally slightly lower than that of pure water at the same temperature. For example, the values at 25 °C for water, and saturated solutions of sodium chloride and calcium chloride are 0.60, 0.57 and 0.54Wm K , respectively. 

Phase change material pellets consist of a tnixmre of paraffin (n-octadecane), a polymer, and a thermal conductivity improver (expandable graphite, graphite microfiber pieces, or graphite powder), a nucleating agent (sodium and calcium chloride and 1-octa-decanol). ... 

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