Cement test device for the detection of imitation gold

Details Cement test device for the detection of imitation gold Cement test device for the detection of imitation gold

1982-01-07

1983-06-14

Turk, Arnold

Chemistry: analytical and immunological testing

Metal or metal containing

Cu, ag, au

106 89, 422 56, 436 73, 436169, G01N 2178, G01N 3320

Patent

active

043884091

ABSTRACT:
A test device which undergoes a color change when contacted by a metal imitating gold. The device comprises a cast cement carrier impregnated with a complex molybdic acid, a hygroscopic salt, and dilute aqueous acid. A process for making and a method for using the novel test device are disclosed.

REFERENCES:
patent: 704409 (1902-07-01), Way
patent: 913129 (1909-02-01), Hames
patent: 1498073 (1924-06-01), Cohn
patent: 2672424 (1954-05-01), Avery
patent: 3847635 (1974-11-01), Lange et al.
patent: 4054461 (1977-10-01), Martin
patent: 4160804 (1979-07-01), Victory

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