Hydrolysis of cupric chloride in aqueous ammoniacal ammonium chloride solutions

Steady-state solidification of aqueous ammonium chloride

We report on a series of experiments in which a Hele-Shaw cell containing aqueous solutions of NH4Cl was translated at prescribed rates through a steady temperature gradient. The salt formed the primary solid phase of a mushy layer as the solution solidified, with the salt-depleted residual fluid driving buoyancy-driven convection and the development of chimneys in the mushy layer. Depending on...

CHALCOPYRITE DISSOLUTION IN CUPRIC CHLORIDE SOLUTIONS Doctoral Thesis

iii Tiivistelmä v Preface vii

Electrolytic Regeneration of Acid Cupric Chloride

(1-Naphthyl­meth­yl)ammonium chloride

The reaction of 1-naphthyl-methyl-amine and hydro-chloric acid in a 1:1 molar ratio resulted in the formation of the 1:1 proton-transfer compound, C(11)H(12)N(+)·Cl(-). In the crystal, the ions are linked by N-H⋯Cl hydrogen bonds into a sheet pattern in the ab plane such that each Cl(-) ion is bonded to three NH groups from the naphthylmethylammonium ion.

(Methyldiphenyl­phospho­ranylidene)­ammonium chloride

The title compound, C(13)H(15)NP(+)·Cl(-), was obtained by hydrolysis of the N-trimethysilyl derivative of methydiphenyl-imino-phosphine. The dihedral angle between the phenyl rings in the cation is 61.5 (3)°. In the crystal structure, inter-molecular N-H⋯Cl hydrogen bonds links the two components, forming a centrosymmetric 2 + 2 aggregate.