Sulfates hydration

Sylvite, see Potassium chloride Szmikite, see Manganese(II) sulfate hydrate... [Pg.275]

Standard Manganese(ll) Solution. Dissolve exactly 16.901 g ACS reagent grade manganese(II) sulfate hydrate in water and dilute to 1 E. [Pg.1168]

Table 24. Physical Properties of Magnesium Sulfates and Magnesium Sulfate Hydrates ...

Over 50 acidic, basic, and neutral aluminum sulfate hydrates have been reported. Only a few of these are well characterized because the exact compositions depend on conditions of precipitation from solution. Variables such as supersaturation, nucleation and crystal growth rates, occlusion, nonequilihrium conditions, and hydrolysis can each play a role ia the final composition. Commercial dry alum is likely not a single crystalline hydrate, but rather it contains significant amounts of amorphous material. [Pg.174]

Hydrates. Aluminum sulfate hydrates, Al2(SO H20, where n ranges from 0 to 27 have been reported (3—6). Relative decreasiag vapor pressure studies iadicate the presence of an octadecahydrate, hexadecahydrate, dodecahydrate, dihydrate, and the anhydrous salt, assumiag that basic aluminum sulfates are not formed duriag the dehydration (3). [Pg.174]

Solubility. The aqueous solubiUty of a typical commercial aluminum sulfate, Al2(SO H20, where n = 14-18, is shown compared to the solubihty of the octadecahydrate in Table 1 (2,8). Differences in solubiUties probably result from small amounts of impurities such as iron, and the slight excess of AI2O2 base present in technical grade commercial aluminum sulfate hydrate. [Pg.174]

Water and Waste Water Treatment. PAG products are used in water treatment for removal of suspended soHds (turbidity) and other contaminants such as natural organic matter from surface waters. Microorganisms and colloidal particles of silt and clay are stabilized by surface electrostatic charges preventing the particles from coalescing. Historically, alum (aluminum sulfate hydrate) was used to neutralize these charges by surface adsorption of Al cations formed upon hydrolysis of the alum. Since 1983 PAG has been sold as an alum replacement in the treatment of natural water for U.S. municipal and industrial use. [Pg.180]

Low sulfate selectivity of the ion-selective electrodes (ISE) based on lipophilic quaternary ammonium salts (QAS) is usually explained by unfavorable ratio of sulfate hydration and solvation energies. We have been shown that another reason does exist as well namely, low efficiency of sulfate-QAS cation interaction caused by steric hindrance for simultaneous approach of two QAS cations, containing four long-chain hydrocarbon substituents, to sulfate ion. [Pg.220]

CidHj NgOijPXC HjjNsh SO o 11.5 H2O Proflavine cytidylyl-(3 — 5 )-guanosine, sulfate, hydrate (PFCYGU10)181... [Pg.306]

What was the formula of the green nickel sulfate hydrate ... [Pg.257]

Cadmium sulfate hydrate, 4 515 physical properties of, 4 509t Cadmium sulfate monohydrate, 4 515 physical properties of, 4 509t Cadmium sulfide, 4 503, 515-516, 518, 521 colloidal precipitation color, 7 343t color and bad gap, 7 335t physical properties of, 4 509t piezochromic material, 6 607 Cadmium sulfide photodetectors, 19 137 Cadmium sulfide photoconductor, fabrication and performance of, 19 155-156... [Pg.130]

Calcium sulfate crystals were precipitated in a Continuous Mixed Suspension Mixed Product Removal (CMSMPR) crystallizer by mixing of calcium phosphate and sulfuric acid feed streams. The formed calcium sulfate hydrate (anhydrite, hemihydrate and dihydrate) mainly depends on the temperature and the solution composition. The uptake of cadmium and phosphate ions in these hydrates has been studied as a function of residence time and solution composition. In anhydrite, also the incorporation of other metal ions has been investigated. The uptake was found to be a function of both thermodynamics and kinetics. [Pg.381]

Zinc oxide reacts with mineral acids to yield corresponding zinc salts when the solution is evaporated. Thus, with sulfuric acid it forms zinc sulfate (hydrated) ... [Pg.991]

Hampson, C. J. Bailey, J. E. 1982. On the structure of some precipitated calcium alumino-sulfate hydrates. Journal of Materials Science, 17, 3341-3346. [Pg.244]

When many hydrates are heated the water of crystallisation is driven away. For example, if crystals of copper(n) sulfate hydrate (blue) are heated strongly, they lose their water of crystallisation. Anhydrous copper(n) sulfate remains as a white powder ... [Pg.139]

Barium chloride dihydrate N-(4-Aminobenzoyl)-L-glutamic acid 2,4,5,6-Tetraaminopyrimidine sulfate hydrate... [Pg.271]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...