The kinetics of the oxidative decolorization of amaranth with KBrO3 acidified by H2SO4 was followed up by monitoring the decrease of the absorbance of amaranth at max = 520 nm. The reaction was carried out under pseudo-first-order conditions. The concentration of BrO3 was ca 300 greater than that of amaranth. The rate of reaction increased with increasing concentration of H2SO4 and BrO3, while...

Research & Development in Material Science Synthetic Lonecreekite (NH4) Al0.59Fe0.41(SO4)2.12H2O Vahobjon Sabirov* M Auezov South-Kazakhstan State University, Republic of Kazakhstan *Corresponding author: sabirov, Submission: April 04, 2023;Published: 19, 2023 DOI: 10.31031/RDMS.2023.18.000946 ISSN: 2576-8840 Volume 18 Issue 5

With the use of purified chondroitinase of Proteus vulgaris, a method has been devised for the determination of relative amounts of chondroitin, chondroitin-4-SO*, and chondroitin6-SO4 in cartilage. This method was applied to the analysis of embryonic chick epiphyseal cartilage. With 35S04 and ‘*C-acetate it was possible to study the relationship of embryo age to rate of formation of chondroiti...

2634 for 44 Lunar and Planetary Science Conference (Houston, TX, March 18-22, 2013) STABILITY AND PHASE TRANSITION PATHWAYS OF OH-BEARING FERRIC SULFATES UNDER THE CONDITIONS RELEVANT TO DIURNAL, SEASONAL, AND OBLIQUITY CYCLES ON MARS. Yanli Lu and Alian Wang, Dept. of Earth and Planetary Sciences and the McDonnell Center for the Space Sciences, Washington University in St. Louis, One Brookings...

In the title salt, (C2H10N2)3[Pr2(SO4)6]·6H2O, the Pr(III) cation is surrounded ninefold by five sulfate groups (two monodentate and three chelating) and by one water mol-ecule [range of Pr-O bond lengths 2.383 (3) to 2.582 (3) Å]. The [Pr(SO4)5(H2O)] groups are arranged in sheets parallel to (010). Two crystal water mol-ecules and two ethyl-enedi-ammonium cations (one with point group symmetry...

Second-harmonic generation (SHG) response and birefringence are two critically important properties of nonlinear optical (NLO) materials. However, the simultaneous optimization these key remains a major challenge because their contrasting microstructure requirements. Herein, we report first tetravalent rare-earth metal fluorinated sulfate, CeF2(SO4). Its structure features novel net-like layers...