Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Automatic analytical monitor and control of industrial process
Patent
1990-06-18
1991-04-09
Hill, Jr., Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Automatic analytical monitor and control of industrial process
422 76, 422 77, 436 51, 436 55, 436163, G01N 3116
Patent
active
050063120
ABSTRACT:
A gravimetric method for determining the iodine adsorption number of carbon black is disclosed. The concentration of an accurately weighed iodine solution is determined by titrating with a standardized titrant and determining the concentration of the iodine solution by the weight of the standardized titrant needed to reach the titration endpoint. An appropriate amount of accurately weighed iodine solution is mixed with an accurately weighed amount of carbon black, and the mixture is equilibrated. The concentration of the resulting supernatant is determined by determining the weight of the standardized titrant needed to reach the titration endpoint. The iodine adsorption number is then determined based on the gravimetrically determined concentrations of the solutions. Preferably, the method is semi-or fully automated, and an apparatus for accomplishing the same is disclosed.
REFERENCES:
patent: 3438736 (1969-04-01), Jucker
patent: 3922335 (1975-11-01), Jordan et al.
patent: 4035336 (1977-07-01), Jordan et al.
patent: 4315902 (1982-02-01), Dilbert
patent: 4715413 (1987-12-01), Backlund et al.
ASTM D 1510-88b, Standard Test Method for Carbon Black Iodine Adsorption Number, approved 9/30/88, published 2/1989.
Hill Jr. Robert J.
Koris David J.
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