Testing tube construction for measuring sodium hydroxide and/or

Details Testing tube construction for measuring sodium hydroxide and/or Testing tube construction for measuring sodium hydroxide and/or

1979-10-25

1981-03-31

Marantz, Sidney

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

23232R, 252408, 422 60, G01N 3122

Patent

active

042592879

ABSTRACT:
A testing tube for measuring sodium hydroxide and/or calcium oxide aerosols, comprises, a glass tube having breakoff points at each end to open at each end and containing a front layer of a substrate material impregnated with ammonium chloride and a following indicating layer of a substrate material impregnated with an acid and bromphenol blue.

REFERENCES:
patent: 3131030 (1964-04-01), Grosskopf
patent: 3312527 (1967-04-01), McConnaughey
L. Pauling, "General Chemistry", 2nd Edition, pp. 374-375, W. H. Freeman, San Francisco, 1953.
L. F. Hamilton et al., "Calculations of Analytical Chemistry", p. 190, McGraw-Hill, New York, 1947.
Chemical Abstracts, 86: 95109e (1977).
"Standard Methods of Chemical Analysis, " 6th Edition, vol. 2, Frank J. Welcher, ed., p. 256, D. Van Nostrand Co., Inc., Princeton, 1963.

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