Caesium bromide chloride

An infrared spectrum of the tetrafluoride in a Nujol mull, with sodium chloride and caesium bromide plates, had peaks at 675 cm." (sharp) and at 576 cm." (broad). A magnetic susceptibility measurement, at 23° by the Gouy technique, showed it to be diamagnetic. 

HBrpoiid+NaOHsoiid=N aBrpoiid+H20aoiid+34 Cals., and for potassium hydroxide, 41 7 Cals. Potassium bromide is nearly twice as soluble as the corresponding chloride in water at 0°. A. von Weinberg obtained 150 1 Cals, for the heat of dissociation of lithium bromide 140 1 Cals, for sodium bromide 144 2 Cals, for potassium bromide 145 0 Cals, for rubidium bromide and 145 8 for caesium bromide. 

Te Caesium Bromide Te Potassium Bromide Te Rubidium Bromide Te Caesium Chloride Te Rubidium Chloride... 

The Group 1 halides have the NaCl structure (6 6 coordination) except for the chloride, bromide and iodide of caesium, which have the CsCl structure (8 8 coordination). The plots shown in Figure 3.3 show a general decrease in the negative value of as the cation radius... 

Uses Of the Stassfurt salts.—The magnesium compounds in the Stassfurt salts are used for the preparation of magnesium and of its salts. The potash salts are an essential constituent of many fertilizers used in agriculture, etc. 22 and potassium chloride is the starting-point for the manufacture of the many different kinds of potassium salts used in commerce—carbonate, hydroxide, nitrate, chlorate, chromate, alum, ferrocyanide, cyanide, iodide, bromide, etc. Chlorine and bromine are extracted by electrolysis and other processes from the mother liquids obtained in the purification of the potash salts. Boric acid and borax are prepared from boracite. Caesium and rubidium are recovered from the crude carnallite and sylvite. 

The reported specific gravity of ammonium iodide 3 ranges from H. G. F. Schroder s 2 443 to H. Schifi and U. Monsacchi s 2"5168 (15°). The best representative value may be taken as 2-511. The molecular volumes of the ammonium halides come between those of rubidium and caesium halides for example, ammonium chloride, 34-01 ammonium bromide, 39 62 ammonium iodide, 57 51. W. Biltz has also studied the mol. vol. of this salt. 

H. citelli, H. diminuta and H. microstoma, one of which is mitochondrial DNA (mtDNA) (394). The mtDNA of H. diminuta has been isolated (118) and has been shown to be a typical circular molecule. The characteristics of H. diminuta DNA are shown in Table 6.11. In contrast, E. multilocularis and E. granulosus produced two distinct DNA bands after fractionation in caesium chloride, but there was no evidence that the DNA from either band represented mtDNA (493). There is presumably so little mtDNA in comparison to nuclear DNA in these organisms that it is completely masked in preparations of total DNA by this method. That this is the case has been shown by a recent study (976), where a different procedure, based on the selective precipitation of nucleic acids by cetyltrimethylammonium bromide (CTAB), was employed to extract mtDNA from isolated mitochondria. Some 300 g and 50 g, respectively, of Taenia spp. and Echinococcus sp. tissue yielded approximately only 1 ng mtDNA. 

The Equation of State of the Alkali Halides.—The alkali halides, the fluorides, chlorides, bromides, and iodides of lithium, sodium, potassium, rubidium, and caesium have been more extensively studied experimentally than any other group of ionic crystals. For most of these materials, enough data are available to make a fairly satisfactory comparison between experiment and theory. The observations include the compressibility and its change with pressure, at room temperature, from which the quantities ai(T), o2(r) of Eq. (1.1), Chap. XIII, can be found... 

SK 23) (Table 2) using a modified hexadecylt-rimethylammonium bromide (CTAB) extraction protocol (Doyle and Doyle 1990 Lange 1997). Nuclear DNA was purified by ultracentrifugation through a caesium chloride—ethidium bromide density gradient (Lange 1997). This DNA was used to create enriched microsatelhte libraries... 

Reaction of a mixture containing hexafluoroacetone and caesium fluoride with allyl bromide or chloride occurs readily [131, 132] (Figure 8.31) but the mixture does not react with trimethylchlorosilane [131]. 

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