Hydrazinium metal chloride hydrates

Hydrazinium Metal Chloride Hydrates -(N2H5)2MCl4-2H20, M = Transition Metal... 

Hydrazinium metal chloride hydrate complexes are generally prepared by the reaction of aqueous solutions of metal chlorides with N2H5CI or N2H6CI2 in dilute HCl. Preparative methods for individual complexes vary mainly with the mole ratios of the reagents employed [23]. 

The electronic spectral and magnetic moment values of hydrazinium metal chloride hydrates are comparable to those reported for octahedral complexes of Co(II), Ni(II), and Cu(II) and square-planar complexes of Pt(II) and Pd(II) (Table 5.11). The magnetic moment values correspond to spin-only values for cobalt(II), nickel(II), and copper(II) ions. 

Hydrazinium metal haUde complexes are of two types anhydrous and hydrated. The hydrazinium chloride complexes, which are the most prevalent, are discussed here. 

The reaction between metal thiocyanates and hydrazinium thiocyanates cannot be used to prepare hydrazinium metal thiocyanate complexes. Consequently, an alternate method is employed, namely, the decomposition of hydrazinium metal hydrazine carboxylates with dilute thiocyanic acid (<5%) [27,28]. Hydrazinium metal hydrazine carboxylates complexes N2H5M(N2H3C00)3 H20, where M = Co and Ni, are prepared from metal nitrates, sulfates, or chlorides and hydrazine hydrate saturated with carbon dioxide. The dilute thiocyanic acid is prepared by adding barium thiocyanate trihydrate to dilute sulfuric acid. 

FERROUS CHLORIDE TETRA-HYDRATE (7758-94-3) FeCl Contact with ethylene oxide may initiate polymerization. Reacts violently with reducing agents, including hydrides, nitrides, and sulfides acrolein, alcohols, chlorine trifluoride, ethers, fluorine, hydrazine, hydrazinium perchlorate, hydrogen peroxide, finely divided aluminum or magnesium, peroxyfuroic acid, sodium acetylide. Sensitizes most organic azides which are unstable shock and heat-sensitive explosives. Forms explosive materials with l,3-di(5-tetrazoyl)triazene, potassium,sodium. Incompatible with glycidol, isopropyl chlorocarbonate, nitrosyl perchlorate, sodium borohydride. Aqueous solution attacks metals. 

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