448 APPENDIX. 



411. 



IODIDE OP NITROGEN. Iodide of Nitrogen, a very explo- 

 sive compound, is formed when an alcoholic solution of iodine 

 is added to aqua ammonia. It precipitates in the form of a 

 black powder. The precipitate should be thrown upon a 

 filter, washed, and while still moist, divided into small por- 

 tions for the purpose of experiment. When dry it explodes 

 violently by simple touch, and sometimes even spontaneously. 



CHLORIDE OF NITROGEN. Chloride of nitrogen is a still 

 more dangerous compound than the above. To prepare it 

 ajar filled with chlorine gas is suspended over a solution of 

 sal ammoniac, contained in a leaden saucer. After the lapse 

 of a few hours, an oily liquid forms and falls to the bottom 

 of the solution. This is the chloride of nitrogen. Mere 

 contact with a combustible material, such as fat, oil, phos- 

 phorus, &c., is sufficient to cause its explosion. A single 

 drop of the liquid explodes so violently as to shatter to pieces 

 any earthen or glass vessel upon which the explosion takes 

 place. The preparation of this compound cannot be recom- 

 mended ; in the hands of the ablest experimenters it has 

 been the occasion of the most dangerous accidents. 



413. P+5O=POs. 



424. KO, N0 5 +HO, S0 3 =KO, SCh+HO, NO 5 . 



425. 3Cu+4N0 5 =3(CuO, NO 5 )+NO 2 . 



426. NO 2 +2O=NO4. 



428. 3Sn+2NO 5 =3SnO 3 +2NO 3 . 



430. 3P+5NO 5 =3PO 5 +5NO 2 . 



433. 5C+PO 5 =5CO+P. 



446. AsCls +6Zn + 6(HO, SQ 3 ) = 6(ZnO, SOs + 



3HCl+AsH 3 . 

 464. C+2O=CO 2 . 

 465. HCl+CaO,CO 2 :=HO+CaCl+CO 2 . 



