Apparatus for determination of ion concentration, specific gravi

Details Apparatus for determination of ion concentration, specific gravi Apparatus for determination of ion concentration, specific gravi

1990-09-14

1993-06-01

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

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

Patent

active

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.

REFERENCES:
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patent: 4038485 (1977-07-01), Johnston et al.
patent: 4108727 (1978-08-01), Stiso et al.
patent: 4318709 (1982-03-01), Falb et al.
patent: 4356149 (1982-10-01), Kitajima et al.
patent: 4472498 (1984-09-01), Masuda et al.
patent: 4532216 (1985-07-01), Wang et al.
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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