Influence of the spin-orientation of free and unpaired protons of ortho-water on the crystallization of the (0 0 1) face of TGS crystal: “in situ” investigation

•The magnetization of the solution causes distinct reduction of the TGS growth rate (~11%).•The TGS solubility rise in the magnetized solution is the main reason for the growth rate fall.•The orientation of free and unpaired protons of ortho-water does not affect the growth hills shape.•Any salt in the solution can be properly considered as an ortho-water diluent.•The spin–lattice relaxation time (T1) of the TGS saturated aqueous solutions is 2.1±0.1 s.

The influence of the spin orientation of free and unpaired protons of ortho-water in a growth solution on the morphological and kinetic parameters of the dislocation centers of growth of the (0 0 1) face of a TGS (triglycine sulfate) crystal was studied by precision methods. It was shown that the protons׳ spin orientation towards the crystal surface has no noticeable effect on the hills׳ shape and causes a decrease of about 11% of the normal growth rate. The spin–lattice relaxation time (T1) of the growth solution has been experimentally determined for the first time. The experimental result of 2.1±0.1 s and that calculated based on literature data are in good agreement.