DE3310464A1 - Method and device for measuring ozone - Google Patents

Abstract

To simplify the measurement of ozone concentrations, a device is specified which makes it possible to carry out measurement by a purely physical method. At the same time, there is no need for recourse to unconfirmed data in the literature. This is achieved as a result of the fact that, when ozone molecules decompose to form oxygen molecules, the total number of molecules increases and this effect can be measured via an increase in pressure or volume. <IMAGE>

Description

Method and device

for measuring ozone.

The invention allows the up @ ab @ @ @ @ @ @ance without chemical reactions and without referring to the absorption coefficient for UV @ hotometry from the literature to have to fall back, since this was determined with chemical methods a purely physical process to determine the ozone concentration.

This task was solved by indexing the Cas to be measured into a Container is @ initiated. the ozone in the C-as is now using an ozone destroyer destroyed, the volume or the @urck increases. This is because of that in the reaction for ozone decay 2 03 = 3 02 2 ozone molecules become 3 oxygen molecules. If you calculate the Druckerhdhuna, you get 2.5 irmWS or 0.25 Pa per C-ram decomposed ozone (T = const., V = const.). When calculating, you only have to refer to the Molar volume can be used as a physical constant. From the pressure increase or the increase in volume can therefore be inferred from the destroyed ozone concentration will.

The advantage is a.) In a simplification of the measurement.

b.) Standard chemical methods which cannot be checked and which vary widely showing one another could be solved.

Other features, details and advantages of the invention arise from the following description and based on the drawing.

@ierbei shows: Fig. 1 Schematic view of an inventive Device for measuring ozone via the pressure increase The arrangement according to Fig. 1 is to be described as follows: The container (1) is filled with ozone from the to be checked Ozone generator (5) filled, three-way valve (2) in position D-A. Now switch on Position B-C around, the ozone is circulated and via the ozone destroyer (3) into oxygen (O2) converted. This increases the pressure.

Example: If the pressure in the manometer (4) rises to 100 mmNS, it was Ozone concentration 40 a O3 / m3.

Claims (2)

Method and device for measuring ozone. ------------------------- A n p r u c h e 1. Procedure for measuring of ozone concentration, in which the following effect is used: increase in the number of molecules when ozone molecules (O3) break down into oxygen molecules (O2). The process is characterized by @ e @: @an brin @ t ozone in one Container and let it decompose to oxygen. This results in a pressure and / or Increase in volume. Pus this can be deduced from the destroyed ozone concentration. 2. Apparatus according to claim 1, characterized in that the ozone by means of a circulation pump through an ozone destroyer and so a faster one Ozone decay and thorough mixing in the wet container is successful.