Sychev, M. M.; Shiballo, V. G.; Katushkin, V. P.; Ustinov, A. E. published the article 《Dielectric properties of calcium, zinc, magnesium, copper, aluminum, iron, manganese, nickel, and cobalt sulfates》. Keywords: dielec constant sulfate hydrate cement.They researched the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0 ).Category: isothiazole. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:17927-65-0) here.
The dielec. constant (κ) of various sulfate hydrates of Ca2+, Zn2+, Mg2+, Cu2+, Al3+, Fe2+, Mn2+, Ni2+, and Co2+ was studied in relation to the n (number of mols. of bound water); the κ increased with an increase in n. A rectilinear equation κ = α + n × tg β is derived, where α = κ of anhydrous salt and tg β = tangent of the angle of curve κ-n. The compressive strength of cement stones, containing these crystallohydrates, decreased with an increase in tg β of the salt.
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Reference:
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Isothiazole – ScienceDirect.com