Accession Number : ADD000943
Title : Arsenic Sampler.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Stroterhoff,Howard L
Report Date : 26 Jun 1973
Pagination or Media Count : 3
Abstract : The patent describes an apparatus and method to indicate the presence of arsenicals in water whereby a sample of water is taken into a clear and flexible plastic tube. A cap having a detection paper impregnated with a mercuric salt mounted in the cap is inserted on to the plastic tube to retain the water sample therein. A sealed thin wall glass ampule fixedly retained in the plastic tube is broken by squeezing the plastic tube at the ampule location and with the ampule between the fingers to release to the water sample a mixture of potassium bisulfate and cupric sulfate contained in the ampule to react with the water sample and any arsenical material therein and a zinc strip within the plastic tube. Any arsenical material present in the water is detected by a yellow to brown color imparted to the detection paper upon reaction of the mercuric salt therein with arsine produced upon release of the ampule contents to the water sample.
Descriptors : *Patents, *Arsenic compounds, Chemical analysis, Samplers, Water pollution, Colors
Subject Categories : Inorganic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE