Cadmium physical properties

Copper. The physical properties of pure copper are given in Table 11. The mechanical properties of pure copper are essentially the same as those for ClOl and CllO. The coppers represent a series of alloys ranging from the commercially pure copper, ClOl, to the dispersion hardened alloy C157. The difference within this series is the specification of small additions of phosphoms, arsenic, cadmium, tellurium, sulfur, zirconium, as well as oxygen. To be classified as one of the coppers, the alloy must contain at least 99.3% copper. 

Cadmium, 118 Capture velocity, 408 Carbon dioxide extinguisher, 223 liquid, 261, 278 physical properties, 262 physiological properties, 151, 152, 264, 279 precautions, 152, 262, 280 sources, 151 Carbon monoxide ... 

Neumann-SpaUart M, Tamizhmani G, Boutry-ForveiUe A, Levy-Clement C (1989) Physical properties of electrochemicaUy deposited cadmium mercury telluride films. Thin Solid Eilms 169 315-322... 

Cadmium dichromate, molecular formula, properties, and uses, 6 56 It Cadmium dihydrogen phosphate, 4 514 Cadmium diphosphide, 4 510 Cadmium electrodes, 3 408 standard potential, 3 413t Cadmium electroplating, 24 749 Cadmium ethylenediamine hydroxide, solvent for cotton, 8 21 Cadmium fluoride, 4 512 physical properties of, 4 508t Cadmium fluoroborate, 4 511 Cadmium fluoroborate hexahydrate,... 

Cadmium sulfate hydrate, 4 515 physical properties of, 4 509t Cadmium sulfate monohydrate, 4 515 physical properties of, 4 509t Cadmium sulfide, 4 503, 515-516, 518, 521 colloidal precipitation color, 7 343t color and bad gap, 7 335t physical properties of, 4 509t piezochromic material, 6 607 Cadmium sulfide photodetectors, 19 137 Cadmium sulfide photoconductor, fabrication and performance of, 19 155-156... 

Tin-cadmium alloys, 4 502 Tin-cadmium coatings, 24 795 Tincal (natural borax), 4 133t Tincalconite (mohavite), 4 133t Tin-carbon bonds, 24 812-813 Tin chlorides, physical properties of,... 

Although cadmium is not considered a transition element in some periodic tables, it is the central element of the triad with zinc and mercury. Zinc is just above it and mercury is below it in group 12 of the periodic table. Cadmiums chemical and physical properties are similar to its group 12 mates. Their electronegativity is very similar Zn = 1.6, Cd = 1.7, and Hg = 1.9. 

Physical properties of cadmium are listed in Table 1. Its electronic structure is lT2T2 63T3/)63i7104T4p64i7105T, and its oxidation state in almost all of its compounds is +2, although a few compounds have been reported (1) in which cadmium exists in the +1 oxidation state. There are eight natural isotopes ... 

Dimethylcadmium is a colorless liquid mp — 4.5°C, bp 106°C. It fumes upon exposure to air but does not inflame, and decomposes sluggishly in water. It can be stored indefinitely at 0°C in darkness (light sensitive) under an inert atmosphere, or under its own vapor pressure, in a storage flask such as those in Fig. 4. As a result of the weak acceptor character of dimethyl-cadmium, only in very few cases are stable coordination complexes formed with donor ligands its chemical and physical properties have been fully reviewed.13 H NMR (C6D6, rel. Me4Si, 5 ppm) — 0.53(s). 

White Cd(CN)2 is sparingly soluble in water, except in the presence of CN ions, owing to the formation of soluble anionic complexes. On heating it darkens and decomposes at about 200 °C. Cd(CN)2, like Zn(CN)2, has a cubic anti-cuprite structure. Colorless cadmium thiocyanate is sparingly soluble in water, ethanol, and liquid ammonia. In the solid, Cd + is surrounded by an N2S4 octahedron. Cadmium thiocyanate polymers exhibit highly anisotropic physical properties. Yellow Cd(N3)2 is prepared by mixing solutions of Cd(N03)2 and NaNs. The crystals are orthorhombic and decompose with detonation when heated. Cadmium pseudohalides (see Pseudohalide) may be prepared by metathesis (equation 3). 

Table 8 Physical properties of cadmium oxide, peroxide and hydroxide...

TABLE 28 L SOME PHYSICAL PROPERTIES OF ZINC, CADMIUM. AND MERCURY... 

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