DE1019484B - Test tube for the quantitative detection of hydrogen peroxide vapors and mists - Google Patents
Test tube for the quantitative detection of hydrogen peroxide vapors and mistsInfo
- Publication number
- DE1019484B DE1019484B DEA24644A DEA0024644A DE1019484B DE 1019484 B DE1019484 B DE 1019484B DE A24644 A DEA24644 A DE A24644A DE A0024644 A DEA0024644 A DE A0024644A DE 1019484 B DE1019484 B DE 1019484B
- Authority
- DE
- Germany
- Prior art keywords
- hydrogen peroxide
- test tube
- quantitative detection
- mists
- peroxide vapors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims description 20
- 238000001514 detection method Methods 0.000 title claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002816 fuel additive Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Prüfröhrchen zum quantitativen Nachweis von Wasserstoffperoxyddämpfen und -nebeln Die Erfindung betrifft ein, Prüfröhrchen zum quantitativen Nachweis von in der Luft enthaltenen Wasserstaffperoxyddämpfen und -nebeln. Wasserstoffperoxyd in hohen Konzentrationen wird bevorzugt als Treibstoffzusatz für Raketenantriebe und: andere Verbrennungsvorgänge benutzt. Es ist bekannt, daß hochprozentiges Wasserstoffperoxyd stark toxisch -wirkt. Über akute, subalcute und chronische Expositionsversuche mit Laboratoriumstieren berichten Oberst, Comstock und Hackley und Mitarbeiter in, A. M. A. Arch. ind. Hyg. occupat. Med. 10, 1954, S. 319 bis 327. In dieser Arbeit wird die Giftigkeit der Dämpfe angegeben und eine MAK-Zahl für Nebel von 90o/oigem H2 02 von 7 ppm, d. h. 7 Teile auf 1 Mio. Teile Luft, ermittelt.Test tube for the quantitative detection of hydrogen peroxide vapors and mists The invention relates to a test tube for quantitative detection of hydrogen peroxide vapors and mists contained in the air. Hydrogen peroxide in high concentrations is preferred as a fuel additive for rocket engines and: uses other combustion processes. It is known that high percentage hydrogen peroxide highly toxic. Acute, subalcute and chronic exposure tests with Laboratory animals report Colonels, Comstock and Hackley and coworkers in, A. M. A. Arch. Ind. Hyg. Occupat. Med. 10, 1954, pp. 319 to 327. In this work the toxicity of the vapors and a MAK number for mist of 90% H2 02 of 7 ppm, i.e. H. 7 parts to 1 million parts of air, determined.
Es ist also notwendig, daß das Bedienungspersonal den Wasserstoffperoxydgehalt der Luft erkennen und sich bei entstehenden hohen Konzentrationen in der Luft davor schützen: muß. Zur Erkennung der Konzentration dient der Erfindungsgegenstand.It is therefore necessary that the operating personnel check the hydrogen peroxide content in the air and in the case of high concentrations in the air in front of it protect: must. The subject of the invention is used to detect the concentration.
Die Erfindung besteht in einem Prüfröhrchen zum quantitativen Nachweis. Das Prüfröhrchen ist mit einer Füllung aus einer an sich bekannten Trägerstoffsu.bstanz, z. B. Kieselgel, gefüllt, a:uf der Titan.ylsclz.,vvefelsäure aufgetragen ist. Mit Wasserstoffperoxyd von 901/e, j a bereits mit dem von 251/o, ergibt die Reaktionsmasse, wenn Wasserstoffperoxydnebel hindurchgesaugt werden, einen zitronengelben. Ring an der Eintrittsstelle, der bei höherem Gehalt in der Luft sich verbreitert, so d:aß man die Konzentration danach bestimmen kann. Aus der Titanylschwefelsäure und dem Wasserstoffperoxyd bildet sich dabei die bekannte Peroxotitanylschwefelsäure H2 [TI 02 (S04)21-Die Herstellung der Röhrchenfüllung geht folgendermaßen vor sich: 1 g Titandioxyd wird in. 8 ml konzentrierter Schwefelsäure gekocht, bis weiße Nebel entstehen. Man läßt die braune, trübe Lösung abkühlen und gießt sie dann in so viel Eiswasser, daß eine 0,5o/oige, fast klare Lösung entsteht, also in etwa 190 ml Wasser. Zum Schluß wird dann: auf 200 ml aufgefüllt. Von dieser Lösung werden 60 ml auf 100 g getrocknetes Kieselgel oder eine andere Trägersubstanz gebracht und umgeschüttelt, bis, die Masse rieselnd ist. Diese Masse wird dann wie üblich in Röhrchen verfüllt und diese an beiden: Enden zugeschmodzen.The invention consists in a test tube for quantitative detection. The test tube is filled with a known carrier material, z. B. Silica gel, filled, on which titanium, yl sulfate, vefelsic acid is applied. With Hydrogen peroxide of 901 / e, yes already with that of 251 / o, gives the reaction mass, if hydrogen peroxide mist is sucked through, a lemon yellow. ring at the point of entry, which widens with a higher content in the air, like this d: ate you can determine the concentration afterwards. From the titanyl sulfuric acid and The well-known peroxotitanyl sulfuric acid is formed with the hydrogen peroxide H2 [TI 02 (S04) 21-The preparation of the tube filling proceeds as follows: 1 g of titanium dioxide is boiled in 8 ml of concentrated sulfuric acid until a white mist develop. The brown, cloudy solution is allowed to cool and then poured into as much Ice water that a 0.5%, almost clear solution is formed, i.e. in about 190 ml of water. Finally: make up to 200 ml. 60 ml of this solution are made up 100 g dried silica gel or another carrier substance brought and shaken, until the crowd is trickling. This mass is then filled into tubes as usual and this at both ends.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA24644A DE1019484B (en) | 1956-04-07 | 1956-04-07 | Test tube for the quantitative detection of hydrogen peroxide vapors and mists |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA24644A DE1019484B (en) | 1956-04-07 | 1956-04-07 | Test tube for the quantitative detection of hydrogen peroxide vapors and mists |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1019484B true DE1019484B (en) | 1957-11-14 |
Family
ID=6925715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA24644A Pending DE1019484B (en) | 1956-04-07 | 1956-04-07 | Test tube for the quantitative detection of hydrogen peroxide vapors and mists |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1019484B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2855648C2 (en) * | 1978-12-22 | 1981-04-30 | Drägerwerk AG, 2400 Lübeck | Detector tubes for measuring sodium hydroxide and / or calcium oxide aerosols |
| DE3223742A1 (en) * | 1982-06-25 | 1984-01-05 | Drägerwerk AG, 2400 Lübeck | TEST TUBE FOR SELECTIVE MEASUREMENT OF OIL FOGS |
-
1956
- 1956-04-07 DE DEA24644A patent/DE1019484B/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2855648C2 (en) * | 1978-12-22 | 1981-04-30 | Drägerwerk AG, 2400 Lübeck | Detector tubes for measuring sodium hydroxide and / or calcium oxide aerosols |
| DE3223742A1 (en) * | 1982-06-25 | 1984-01-05 | Drägerwerk AG, 2400 Lübeck | TEST TUBE FOR SELECTIVE MEASUREMENT OF OIL FOGS |
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