USE OF AEROSOL SPRAYING DEVICE FOR EXPRESS DETECTION OF ACIDIC AGGRESSIVE CHEMICALS ON SURFACE OF OBJECTS Russian patent published in 2015 - IPC G01N33/00 G01N33/22 B05B17/04 

FIELD: chemistry.

SUBSTANCE: aerosol spraying device was used for indicator solutions spraying. An indicator formulation was sprayed over the tested surface, wherein the said formulation was sprayed in the form of a monodisperse aerosol at a distance of 10-15 cm, followed by a visual inspection of the indication effect. A 0.05-0.1% ethanol solution of mixed methyl red indicator and methyl yellow indicator at a ratio of 1:1 by volume was used for the detection of strong acids. A 0.05-0.1% solution of 4-diethyl-aminobenzene in ethanol was used for the detection of weak organic acids.

EFFECT: demonstrative indication effect, multiple usability and operability of the device within at least 2 years.

2 dwg