AT160261B - Process for making chemically reactive gases or vapors in air or other inert gases recognizable. - Google Patents
Process for making chemically reactive gases or vapors in air or other inert gases recognizable.Info
- Publication number
- AT160261B AT160261B AT160261DA AT160261B AT 160261 B AT160261 B AT 160261B AT 160261D A AT160261D A AT 160261DA AT 160261 B AT160261 B AT 160261B
- Authority
- AT
- Austria
- Prior art keywords
- gases
- vapors
- air
- recognizable
- chemically reactive
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
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Verfahren zum Erkennbarmachen von chemisch reaktionsfähigen Gasen oder Dämpfen in Luft oder andern indifferenten Gasen.
Für den Nachweis von Gasen oder Dämpfen in Luft oder andern indifferenten Gasen ist es bereits bekannt, die nachzuweisenden Gase auf Reaktionslösungen einwirken zu lassen, die vorher durch poröse Massen wie Baumwolle oder Glaswolle aufgesaugt worden sind. Diese aufsaugenden Massen mussten in einem Rohr oder Gefäss aus durchsichtigem Material oder in einer aus entsprechendem Siebgeflecht bestehenden Hülse untergebracht werden, um die aufsaugenden Massen zusammenzuhalten und die Reaktion überhaupt sichtbar zu machen. Diese Gasnachweisverfahren sind daher verhältnismässig teuer und umständlich durchzuführen.
Gemäss dem patentgemässen Verfahren wird der Nachweis von Gasen dadurch vereinfacht, dass die die Reaktionslösung aufsaugende Glaswolle od. dgl. in Form gepresster Platten ohne jede Umhüllung zur Anwendung gebracht wird. Dadurch kommen die Behälter für die porösen Massen in Fortfall, da die Glaswolle in den gepressten Platten an sich zusammenhält und es kann die Glaswolle bei der Herstellung von Platten viel gleichmässiger aufgeschichtet werden, als bei der Unterbringung in Rohren oder Siebbehältern, so dass bei den in Betracht kommenden ausserordentlich geringen Mengen nachzuweisender Gase eine höhere Gleichmässigkeit und damit Genauigkeit und Empfindlichkeit des Nachweises erreicht wird. Der Aufsaugekörper besteht hier nur aus Aufsaugematerial, da ein Behälter für dieses nicht erforderlich ist.
Zum Nachweis von Gasen oder Dämpfen wird die Reaktionslösung, z. B. eine Permanganatlösung, auf eine aus Glaswolle oder ähnlichem farblosem indifferentem Material gepresste Platte aufgetragen und diese in die zu untersuchende Luft eingebracht. Dabei wird sich die rosagefärbte Permanganatlösung entfärben oder einen schmutzigbraunen Farbton annehmen. Aus der auftretenden Färbung lässt sich auf die Art des festgehaltenen Gases schliessen.
Anstatt einer Permanganatlösung kann auch eine Lösung eines Chromates oder Bichromates verwendet werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for making chemically reactive gases or vapors in air or other inert gases recognizable.
For the detection of gases or vapors in air or other inert gases, it is already known to let the gases to be detected act on reaction solutions that have previously been absorbed by porous materials such as cotton or glass wool. These absorbent masses had to be housed in a tube or vessel made of transparent material or in a sleeve made of a suitable mesh screen in order to hold the absorbent masses together and to make the reaction visible at all. These gas detection methods are therefore relatively expensive and difficult to carry out.
According to the method according to the patent, the detection of gases is simplified in that the glass wool or the like which absorbs the reaction solution is used in the form of pressed plates without any cover. As a result, the containers for the porous masses are no longer necessary, since the glass wool in the pressed plates holds together and the glass wool can be stacked much more evenly during the manufacture of plates than when it is placed in pipes or sieve containers, so that the in Taking into account extremely small amounts of gases to be detected, a higher uniformity and thus accuracy and sensitivity of the detection is achieved. The absorbent body consists only of absorbent material here, since a container for this is not required.
For the detection of gases or vapors, the reaction solution, z. B. a permanganate solution, applied to a plate pressed from glass wool or similar colorless indifferent material and introduced into the air to be examined. The pink permanganate solution will discolour or take on a dirty brown color. The type of gas retained can be inferred from the color that occurs.
Instead of a permanganate solution, a solution of a chromate or bichromate can also be used.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE160261T | 1933-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT160261B true AT160261B (en) | 1941-03-25 |
Family
ID=29261384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT160261D AT160261B (en) | 1933-06-23 | Process for making chemically reactive gases or vapors in air or other inert gases recognizable. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT160261B (en) |
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0
- AT AT160261D patent/AT160261B/en active
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