Comments on the paper "Crystallization of inorganic nonlinear optical zinc di-magnesium chloro sulphate (ZDMCS) single crystal". (May 2021)

• Record Type: Journal Article
• Authors: Srinivasan, Bikshandarkoil R.; Deshpande, Megha S.
• Is Part Of: Optics & laser technology. Volume 137(2021)
• Publication Date: 2021-05
• Subjects: Crystal growth -- Zinc di-magnesium chloro sulphate -- Crystal structure -- Optical materials and properties -- Magnesium sulphate hexahydrate; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2020.106864
• Languages: English
• ISSNs: 0030-3992

Abstract

Graphical abstract: ZnSO4 ·7H2 O + 2 MgCl2 ·6H2 O → [Mg(H2 O)6 ](SO4 ) Highlights: The title paper is critiqued. Many points of criticisms are highlighted. Experimental data reported in the title paper are discussed. Zinc di-magnesium chloro sulphate is in fact, magnesium sulphate hexahydrate. Abstract: The authors of the title paper (Optics & Laser Tech 88 (2017) 147–151) claim to have grown a so-called inorganic nonlinear optical zinc di-magnesium chloro sulphate (ZDMCS) single crystal formulated as Zn 2(MgCl2 ) SO4 . A critical analysis of the title paper is presented to show that the reported experimental data are not in agreement with the proposed formula of ZDMCS. In this letter to Editor, we prove that ZDMCS is in fact, the well-known crystal magnesium sulphate hexahydrate having formula MgSO4 ·6H2 O.