Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
Patent
1992-10-22
1994-03-01
Johnston, Jill A.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Calorimeter
422 59, 436 41, 436166, G01N 3122, G01N 3318
Patent
active
052905160
ABSTRACT:
A method and product whereby color changing indicator salts such as cobaltous salts, preferably CoCl.sub.2 or CoBr.sub.2, are firmly adhered to sand, other particulate silicas or other carriers so that unwanted fines, material loss and solvent washing characteristic of prior indicator salt-coated carriers are eliminated. The process is carried out by thoroughly dehydrating a quantity of cobaltous salts and dissolving and storing the dehydrated cobaltous salt in absolute alcohol, preferably absolute ethanol. The absolute alcohol/cobaltous salt solution is then contacted onto a dehydrated or anhydrous carrier material and the absolute alcohol solvent is removed.
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Greco Mariano
Lesperance Brenda
Shine Grace L.
Bacharach, Inc.
Johnston Jill A.
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