Test tube construction and method for testing for copper aerosol

Details Test tube construction and method for testing for copper aerosol Test tube construction and method for testing for copper aerosol

1980-09-30

1982-05-11

Turk, Arnold

Chemistry: physical processes

Physical processes

Crystallization

422 60, 422 61, 422 86, G01N 2178, G01N 3122

Patent

active

043291538

ABSTRACT:
An apparatus for testing copper concentration of a test gas comprises a glass tube having breakoff points at each end with an ampoule filled with a nitric acid arranged upstream of a filter which is followed downstream by a reaction layer of silica gel impregnated with a reagent for copper. The glass tube is opened by breaking off breakoff points at each end and the gas to be tested is pumped through the tube so that any suspended particles including copper particles will be deposited on the filter layer too. Thereafter, the ampoule within the glass tube is broken to release the nitric acid which is directed through the filter layer to the reaction layer. The nitric acid which reacts with the copper deposited on the filter layer moves to the reaction layer and produces a discoloration which is proportional to the amount of copper filtered out from the test air. A chart is made up to provide a color standard which is proportional to the copper concentration in the test gas and the discoloration produced in the reaction layer is compared with this color standard to determine the quantity of copper.

REFERENCES:
patent: 2908555 (1959-10-01), Grosskopf
patent: 3022141 (1962-02-01), Grosskopf
patent: 3985017 (1976-10-01), Goldsmith
patent: 4271125 (1981-06-01), Leichnitz
patent: 4272479 (1981-06-01), Huneke et al.
The Merck Index of Chemicals and Drugs--Seventh Edition, Merck & Co., N.J., 1960, p. 950.

Affiliated with

Also associated with

Rating

Test tube construction and method for testing for copper aerosol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Test tube construction and method for testing for copper aerosol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Test tube construction and method for testing for copper aerosol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-754555