Rubidium azide

The salt is made in essentially the same way as described for sodium azide synthesis according to Wislicenus [86], neutraHzing of hydrazoic acid with rubidium carbonate [75], or reacting of rubidium sulfate and barium azide [62,73,101,109]. 

Cesium azide, CsNa, is a white, deliquescent soHd of even higher solubiHty in water than the rubidium salt The saturated solution contains 69.2% RbNa at 0°C and 75.5% at 16°C [62] ethanol dissolves only 0.94% (w/w) at 16°C [62]. The salt transforms at 151°C from a tetragonal to a cubic phase, which melts at 326 C with decomposition [108],t leaving, like rubidium azide, a mixture of metal and nitride [103]. CsNa is not sensitive to mechanical shock. 

Like the other lA azides, CsNa is obtainable through the Wislicenus synthesis [85], by neutralizing hydrazoic acid with cesium hydroxide [110] or carbonate [75], or by reacting cesium sulfate [62,101,102] or chromate [73] with barium azide. On account of its deliquescence and high solubility, some 

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Rubidium Azide was first prepd by L.M. Dennis C.H. Benedict and also by T. Curtius J. Rissom (Vol 1 of Encycl, p A596) 1898. Strontium Diazide was prepd by the same persons as above (Vol 1 of Encycl, p A620)... 

Sodium azide (see above, p. 189 and Table 36) can be decomposed on heating but it is of low sensitiveness to impact or friction and is not listed as an explosive in transport regulations. According to Gunther et al. [138] rubidium azide is much more sensitive to impact and friction than sodium azide. Gunther believes this to be due to the fact that the radius of the orbit of nitrogen atoms in rubidium azide is much shorter than that in sodium azide. 

Rubidium azide was first prepd in 1898 bv Dennis Benedict (Ref 1) in the same year by Curtius Rissom (Ref 2) both by neutralizing RbOH with HNS and allowing the soln to evap in air. It is also formed... 

T. Curtius and J. Rissom, and L. M. Dennis and C. H. Benedict made the rubidium azide, RbN3, by the methods indicated in connection with lithium azide. 

Addnl Ref D.L. Foster et al, The Growth and Characterization of Potassium and Rubidium Azide Single Crystals , Clemson Univ, S. Carolina, Contract DA-ARO-D-31-124-72-G120 (1975)... 

Rubidium Acetylide A79-L Rubidium Azide A596-R Rubidium Carbide A79"L Rubidium Hydrogen Acetylide A79-L Russian Ammonals A292-L Russian Ammunition and Weapons A385-R Russian Mixture. See Ammontol A383-L... 

Rubidium, rubidium azide for preparation of, 1 79 Rubidium azide, 1 79 Rubidium dichloroiodate(I), 5 174... 

NaRb Rubidium azide, 1 79 (Ns)jCO Carbonyl azide, 4 35 (N2SCS)2 Azido-carbon disulfide, 1 81, 82... 

RbNa Rubidium azide, 1 79 ReCla Rhenium (III) chloride, 1 182... 

N3NH4 Ammonium azide, 2 136 NsNa Sodium azide, 1 79 2 139 NsRb Rubidium azide, 1 79 (Ns)2CO Carbonyl azide, 4 35 N3SCNHC6H5 5-Anilino-l,2,3,4-thiatriazole, 6 45 NsSCNH2 5-Amino-l,2,3,4-thia-triazole, 6 42 5-(substituted)-amino derivatives, 6 44 (N3SCS)2 Azido-carbon disulfide, 1 81, 82... 

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