Etch pit study of different crystallographic faces of L-arginine hydrobromide monohydrate (LAHBr) in some organic acids

Add time:07/31/2019    Source:sciencedirect.com

Etching characteristics of (1 0 0), (0 1 0), (0 0 1), and (1 1 0) surfaces of an important nonlinear crystal `L-arginine hydrobromide monohydrate’ etched in organic acids have been investigated. It has been found that FeCl3 added to propionic acid reduces the tangential etch rate of (1 0 0) and (0 0 1) surfaces. Fast etchants could produce etch pits only on `F’ faces, i.e. (1 0 0), (0 0 1), and (1 1 0) but they have no effect on `S’ face, i.e. (0 1 0).

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