On the Crystal Structure of a Previously Unknown Anhydrous Zinc Hydroxide Sulfate

Abstract

Anhydrous zinc hydroxide sulfates are promising precursors for the preparation of pigments and ZnO nanomaterials. The crystal structure of one such compound 5[Zn(OH)2]·2[ZnSO4] was determined from high resolution laboratory X‐ray powder diffraction data by use of a combination of charge flipping,18 simulated annealing,26 and difference Fourier analysis. The material crystallizes in the space group P with the lattice parameters of a = 5.4559(2) Å, b = 8.0528(3) Å, c = 8.9275(3) Å, α = 112.697(2)°, β = 85.219(3)°, γ = 95.441(3)°, and a volume of V = 359.76(2) Å3. The basic crystal structure consists of brucite type Zn(OH)2 layers where every sixth octahedral site is vacant. Tetrahedrally coordinated zinc ions are located above and below these vacancies and consecutive layers are bridged by sulfate molecules. The composition of this layered structure can be written as [Zn5VI□(OH)4·Zn2IV(OH)6·(SO4)2]. Its thermal decomposition was studied by X‐ray powder diffraction and thermal analysis.

Decoupling the Dynamics of Zinc Hydroxide Sulfate Precipitation/Dissolution in Aqueous Zn–MnO2 Batteries by Operando Optical Microscopy: A Missing Piece of the Mechanistic Puzzle

“…ρ MnO2 = ρ meas = 1.95 g cm –3 (Table S3–2, Supporting Information), ρ ZHS = 2.77 g cm –3 for x = 5. [ 64 ] Details about uncertainty calculations related to the optical model can be found in Section S4 (Supporting Information).…”

“…ρ MnO2 = ρ meas = 1.95 g cm -3 (Table S3-2, Supporting Information), ρ ZHS = 2.77 g cm -3 for x = 5. [64] Details about uncertainty calculations related to the optical model can be found in Section S4 (Supporting Information). within single micrometric particles during cycling, [50] as well as the dissolution of individual CaCO 3 biominerals induced by the electrogeneration of acid.…”

Brass and Glass: Crystal Structure Solution and Phase Characterisation of the Corrosion Product Zn4Cu3(Zn1–xCux)6(HCOO)8(OH)18·6(H2O)

“…Crystal structures of pure zinc formate hydroxides are unknown, so far. There are however, zinc hydroxide sulfates, 3Zn(OH) 2 · 1ZnSO 4 · 5H 2 O, 3Zn(OH) 2 · 1ZnSO 4 · 3H 2 O and 5Zn(OH) 2 · 2ZnSO 4 that also exhibit layered motifs with vacancies within the layers that are capped with ZnOO 3/3 tetrahedra. Structures of mixed copper‐zinc formate hydroxides have not been reported but the formation of a solid solution between Cu(HCOO) 2 · 2H 2 O and Zn(HCOO) 2 · 2H 2 O is known .…”

ÇİNKO HİDROKSİ SÜLFAT (Zn4SO4(OH)6)’IN ÜÇ FARKLI BAZİK ORTAMDA SENTEZİ, KARAKTERİZASYONU VE TERMAL BOZUNMASI

“…İlaç sanayinde, pigment üretiminde, tarım ve kimya sektöründe, boya, deri, maya sektöründe, maden cevheri çıkartılmasında, sentetik fiber endüstrisi, çinkolu gübre üretiminde, birim alanda elde edilen ürün miktarını artırmaktadır ve toprak pH'ını düzenlemektedir. (Xue et al, 2010;He et al 2013;Germann et al, 2016).…”