Apparatus for determination of ion concentration, specific gravi

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter

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422 57, 422 8209, 436 2, 436169, 427 2, G01N 936, G01N 3104

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052157121

ABSTRACT:
A method for the determination of the ion concentration, specific gravity, or osmotic pressure of a solution, which comprises causing to contact a solution under test a coloring substance formed of a pigment or a precursor of pigment having solubility correlated with the ion concentration of said solution and detecting the solubility of said coloring substance in said solution, and an apparatus therefor.

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patent: 4965047 (1990-10-01), Hammond
patent: 5064615 (1991-11-01), Mangold et al.
Patent Abstracts of Japan, vol. 011, No. 303 (P-622), Oct. 3, 1987.

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