Sodium molten, density

Here, Q is the heat energy input per area p and Cp are the density and specific heat capacity, respectively and indices g, d, and s refer to the gas, metal, and liquid sample layers, respectively. With Eq. (106), the thermal conductivity of the sample liquid is obtained from the measured temperature response of the metal without knowing the thermal conductivity of the metal disk and the thickness of the sample liquid. There is no constant characteristic of the apparatus used. Thus, absolute measurement of thermal conductivity is possible, and the thermal conductivities of molten sodium and potassium nitrates have been measured. ... 

The electrolyte is made by in situ chlorination of vanadium to vanadium dichloride in a molten salt bath. Higher valent chlorides are difficult to retain in the bath and thus are not preferred. The molten bath, which is formed by sodium chloride or an equimolar mixture of potassium chloride-sodium chloride or of potassium chloride-lithium chloride or of sodium chloride-calcium chloride, is contained in a graphite crucible. The crucible also serves as an anode. Electrolysis is conducted at a temperature about 50 °C above the melting point of the salt bath, using an iron or a molybdenum cathode and a cathode current density of 25 to 75 A dnT2. The overall electrochemical deposition reaction involves the formation and the discharge of the divalent ionic species, V2+ ... 

Silvery needles refractive index 1.470 density 0.92 g/cm decomposes at 800°C decomposes explosively in water reacts violently with lower alco-hols dissolves in molten sodium and molten sodium hydroxide insoluble in liquid ammonia, benzene, carbon tetrachloride and carbon disulfide. 

Among the a function s of molten sodium metal as a heat-transfer medium are (l)low density compared with other metals and combinations of... 

Mixtures of barium and sodium tungstates in the molten state give, with a current density of about 4 5 amps, per dm.2 at a pressure of 1 6 volts, bronzes which correspond to the following formulae —... 

Com syrup (polysaccharide) and sucrose are cooked together producing larger polysaccharides and eventually forming a plastic mass. Peanuts are added, as is baking soda (sodium bicarbonate) to provide small bubbles of CO that decrease the density. A little butter is added, partly for flavor partly for texture, and partly to reduce sticking. The hot, molten composite is spread out in thin sheets and cooled. In some recipes, the still hot, taffy-like material is stretched to produce a thinner transparent final product. 

The sodium electrode [139] in molten sodium chloride is very reversible with an exchange current density that varies from about 100 A cm-2 at 820°C to about 200 A cur2 at 920°C. 

The scheme of an electrolytic cell is given in Figure 31. The cathodes and anodes are subdivided into four pairs of electrodes. The four cathodes are welded together, surrounding the four cylindrical graphite anodes concentrically [305— 308], The anode-cathode distance is <50 mm. A cylindrical diaphragm of iron mesh is placed between the electrodes to separate the electrolysis products (sodium and chlorine). The density of molten sodium is lower than the density of the electrolyte. 

Molybdates of the Rare Earth Metals. —Salts of the type M2(Mo04)3 have been described. The cerous salt is obtained as yellow crystals by fusing together anhydrous cerous chloride and sodium molybdate. The density of the molten salt is 4-56. The crystals are similar to those of lead and bismuth molybdates, as also are those of didymium molybdate. ... 

M.V. Smirnov, V.A. Khokhlov and A.A. Antonov, Density and Viscosity of Molten Reciprocal Fluorides of Sodium and Caesium, Coll. Inst. Electrochem. Ural Sci. Cent. Acad. Sci. USSR N25 (1977) 3-7. 

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