Caesium INDEX

Individually indexed metals are Aluminium, 0048 Antimony, 4907 Barium, 0200 Beryllium, 0220 Bismuth, 0226 Cadmium, 3949 Caesium, 4254 Calcium, 3922 Cerium, 3961 Chromium, 4222 Cobalt, 4199 Copper, 4267 Europium, 4292 Gallium, 4406 Germanium, 4412... 

H. Topsoe found the refractive indices of crystals of potassium bromide to be 1 5546 for the C-line 1"5593 for the D-line 15715 for the F-Iine and 1-5814 for the H-line. Similar results were obtained by M. SprockhofE, and for rubidium bromide, 1 5483 for the C-line 1 5528 for the Z)-line and 1 5646 for the F-line. For the caesium bromide, M. SprockhofE obtained T6924 for the C-line 1 6984 for the D-line and 1 7126 for the F-line. The refractive index /u. of soln. of lithium, sodium, and potassium bromides have been determined by G. P. Baxter and for potassium bromide soln. by A. H. Borgesius,27 at 18° for the D-line. The fractional increase in the refractive index (/u.—p0)/w of soln. containing w per cfent. of the salt per litre, is... 

The metal fulminates are all powerfully explosive. Of several salts examined, those of cadmium, copper and silver were more powerful detonators than mercury fulminate, while thallium fulminate was much more sensitive to heating and impact. Formally related salts are also explosive [1]. Sodium, potassium, rubidium and caesium fulminates are all easily detonated by feeble friction or heat. They all form double salts with mercury(II) fulminate which also explode readily, that of the rubidium salt at 45°C [2], Individually indexed compounds are ... 

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