Hydrazinium dichloride

Hydrazine (or Hydrazinium) Dichloride (or Dihydrochloride), N2H4.2HC1, mw 69.53, N 40.30% wh crysts, sp gr 1.4226 at 20°/4 °, mp 198° with dissociation detonates on ignition, or when heated rapidly hygroscopic v sol in w almost insol in hot absol ale. Can be prepd from hydrazine hydrate and excess of HC1 or from hydrazine hydrosulfate and Ba chloride Refs 1) Gmelin s Hdb (1936), Syst 23, p 553... 

J. Donohue and W. N. Lipscomb. J. Chem, Phys, 15, 115-19 (1947). Crystal structure hydrazinium dichloride, NtHsCU. 

Describe the N—N bond in hydrazinium dichloride, H3N+—N+H3 2C1. Account for the fact that tra s-2,5-dichloro-l,4-dioxane 4 preferentially adopts the diaxial confonnation (Koritsanszky, T. Strumpel, M. K. Buschmann, J. Luger, P. Hansen, N. K. PichonPesme, V., J. Am. Chem. Soc., 1991, 113, 9148). Hint This is an example of the anomeric effect in operation. 

ACETATO MERCURIOSO (Spanish) (21908-53-2) A strong oxidizer. Violent reaction with reducing agents, acetyl nitrate, diboron tetrafluoride, disulfur dichloride, combustible materials, fuels, hydrazine hydrate, hydrogen peroxide, hydrogen trisulfide, hypophospho-rous acid, methanethiol, phospham. sodium-potassium alloy, sulfur, sulfur trioxide. Incompatible with alcohols, alkali metals, ammonium nitrate, diboron tetrafluoride, hydrazinium nitrate, hydrogen sulfide, nitroalkanes, rubidium acetylide, selenium oxychloride. Forms heat-, friction-, or shock-sensitive explosives with anilinium perchlorate, chlorine, phosphorus,. sulfur, magnesium, potassium, sodium-potassium alloy. May increase the explosive or thermal sensitivity of nitromethane, nitroethane, 1-nitropropane and other lower nitroalkanes, silver azide, hydrazinium perchlorate. Slowly decomposes on exposure to air. 

CUPROUS DICHLORIDE (7758-89-6) Violent reaction with lithium nitride, nitric acid, potassium. Incompatible with acetylene, hydrazinium diperchlorate, acids, acid fumes. 

ESTANO (Spanish) (7440-31-5) Finely divided material is combustible and forms explosive mixture with air. Contact with moisture in air forms tin dioxide. Violent reaction with strong acids, strong oxidizers, ammonium perchlorate, ammonium nitrate, bis-o-azido benzoyl peroxide, bromates, bromine, bromine pentafluoride, bromine trifluoride, bromine azide, cadmium, carbon tetrachloride, chlorine, chlorine monofluoride, chlorine nitrate, chlorine pentafluoride, chlorites, copper(II) nitrate, fluorine, hydriodic acid, dimethylarsinic acid, ni-trosyl fluoride, oxygen difluoride, perchlorates, perchloroethylene, potassium dioxide, phosphorus pentoxide, sulfur, sulfur dichloride. Reacts with alkalis, forming flammable hydrogen gas. Incompatible with arsenic compounds, azochloramide, benzene diazonium-4-sulfonate, benzyl chloride, chloric acid, cobalt chloride, copper oxide, 3,3 -dichloro-4,4 -diamin-odiphenylmethane, hexafluorobenzene, hydrazinium nitrate, glicidol, iodine heptafluoride, iodine monochloride, iodine pentafluoride, lead monoxide, mercuric oxide, nitryl fluoride, peroxyformic acid, phosphorus, phosphorus trichloride, tellurium, turpentine, sodium acetylide, sodium peroxide, titanium dioxide. Contact with acetaldehyde may cause polymerization. May form explosive compounds with hexachloroethane, pentachloroethane, picric acid, potassium iodate, potassium peroxide, 2,4,6-trinitrobenzene-1,3,5-triol. 

IRON DICHLORIDE (7758-94-3) Contact with ethylene oxide may initiate polymerization. Reacts violently with reducing agents, acrolein, alcohols, chlorine trifluoride, ethers, fluorine, hydrazine, hydrazinium perchlorate, hydrogen peroxide, finely divided aluminum or magnesium, peroxyfuroic acid, sodium acetylide. Sensitizes most organic azides that are unstable shock and heatexplosives. Forms explosive materials with 1,3-di(5-tetrazoyl)triazene, potassium, sodium. Incompatible with glycidol, isopropyl chlorocarbonate, nitrosyl perchlorate, sodium borohydride. Aqueous solution attacks metals. 

Hydrazinium di-chlorophosphazene, Cl3P=N-N=PCl3, can be made by the Kirsanov reaction (7.498). It is a colourless very hygroscopic solid which is slightly soluble in POCI3, but insoluble in other common solvents. Controlled hydrolysis at low temperature leads to unstable hydrazido-N,N-bis(phosphoryl dichloride) (7.499), but with excess water the products are HCl, H3PO4 and N2H4 (7.500). 

This assumption is confirmed by the following observations (i) the highest activity in catalytic processes is shown by tin acetylacetonate dichloride, the latter providing the possibility of formation of hydrazinium chloride and (ii) the process becomes much faster by the addition of hydrochloric acid to the reaction system,... 

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