DE689790C - Process for indicating the beginning exhaustion of carbonic acid-absorbing masses - Google Patents

Process for indicating the beginning exhaustion of carbonic acid-absorbing masses

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Publication number
DE689790C
DE689790C DE1935C0051177 DEC0051177D DE689790C DE 689790 C DE689790 C DE 689790C DE 1935C0051177 DE1935C0051177 DE 1935C0051177 DE C0051177 D DEC0051177 D DE C0051177D DE 689790 C DE689790 C DE 689790C
Authority
DE
Germany
Prior art keywords
carbonic acid
exhaustion
beginning
masses
indicating
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.)
Expired
Application number
DE1935C0051177
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHEM FAB DR HUGO STOLTZENBERG
Original Assignee
CHEM FAB DR HUGO STOLTZENBERG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHEM FAB DR HUGO STOLTZENBERG filed Critical CHEM FAB DR HUGO STOLTZENBERG
Priority to DE1935C0051177 priority Critical patent/DE689790C/en
Application granted granted Critical
Publication of DE689790C publication Critical patent/DE689790C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/088—Devices for indicating filter saturation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

. Verfahren zum Anzeigen der beginnenden Erschöpfung von Kohlensäure absorbierenden Massen Es ist bekannt, bei Kohlenoxyd.zurückhaltenden, mit Hopkalit oder ähnlichen oxydierenden Massen gefüllten Atemfiltern .den Durchtritt von Kohlenoxyd ,nach der Erschöpfung dadurch nachzuweisen, @daß eine gewöhnlich in der Atmosphäre enthaltene B:eimeingung von Wasserdampf, die gleichzeitig mit dem Kohlenoxyd das Filter durchbricht, mit Substanzen reagiert, die einstark riechendes Gas entwickeln. Es werden hierzu z. B. Calciumcarbid, das Acetylen, und Magnesiumnitrid, das Ammoniak entwickelt, benutzt. Diese Verfahren stützen sich auf zwei Voraussetzungen, die nicht immer zutreffen, nämlich erstens, daß Wasserdampf als ständige Verunreinigung eines jeden Kohlenoxydvorkommens auftritt, was bei Industriegasen in geschlossenen Räumen nicht notwendigerweise der Fall zu sein braucht, und zweitens, ;daß verunreinigende Gaset' wie Wasserstoff, Methan und andere Kohlenwasserstoffe, nicht als Verunreinigungen des Kohlenoxyds auftreten, was aber meisi der Fall ist. Gemäß der Erfindung werden in den Weg, den die Atemluft nach der Berührung mit den Kohlendioxyd absorbierenden Substanzen, z. B. sogenannten Kalipatronen von Sauerstoffgeräten oder Austauschmassen in Natriumsuperoxydgeräten, zum Einatmer nimmt, als Sicherungsschicht an sich geruchlose Salze einer stark riechenden oder .schmeckenden Säure eingeschaltet, die schwächer ist als Kohlensäure, wodurch mit Sicherheit die beginnende Erschöpfung der Kohlendioxyd absorbierenden Massen angezeigt wird.. Method of indicating the beginning of carbonic acid exhaustion absorbent masses It is known, in the case of carbon oxide. restrained, with Hopkalit or similar oxidizing masses filled breathing filters. the passage of carbon oxide to prove after exhaustion by @ that one is usually in the atmosphere Contains B: a mixture of water vapor, which simultaneously with the carbon oxide the Breaks through the filter, reacts with substances that develop a strong smelling gas. There are z. B. Calcium carbide, the acetylene, and magnesium nitride, the ammonia developed, used. These procedures rely on two assumptions, the not always true, namely, first, that water vapor is a constant pollution of every carbon oxide deposit occurs, which is the case with industrial gases in closed Clearance need not necessarily be the case, and secondly, that contaminating Gases like hydrogen, methane and other hydrocarbons, not as impurities of the carbon dioxide occur, but this is usually the case. According to the invention in the way that the air absorbs after coming into contact with the carbon dioxide Substances, e.g. B. so-called potash cartridges of oxygen devices or exchange masses in sodium superoxide devices, taken by inhalation, as a backing layer in itself odorless Salts of a strong smelling or tasting acid switched on, the weaker is as carbonic acid, whereby with certainty the beginning exhaustion of the carbon dioxide absorbing masses is displayed.

Zu den. Geruchs- und #GeschTnacks.stoffen, die Säuren darstellen, deren. Salze durch Kohlensäure umgesetzt werden, gehören z. B. die P'henylessigsäure, Phenylp,ropionsäure, Phenylbuttersäure@ Caprons.äure; Oxybwttersäure.To the. Odor and # taste substances that represent acids, whose. Salts are converted by carbonic acid, include z. B. phenylacetic acid, Phenylp, ropionic acid, phenylbutyric acid @ caproic acid; Oxybwtic acid.

Läßt man z. B. auf Calciumphenylacetat, das beispielsweise in :einem porösen Korn aufgenommen ist und geruchslos ist, Kohlensäure einwirken, so entsteht nasch der Formel (C,3HS#CH2#COOH)2Ca+C02+H20-2C,3H,,#CH2#COOH+CaC0, eine geringe Menge Säure, die durch den Geruch wahrnehmbar ist und dem Träger des Sauerstoffgerätes die baldige Erschöpfung seines Gerätes anzeigt.If you let z. B. on calcium phenyl acetate, for example in: a porous grain is absorbed and is odorless, carbonic acid is created nasch the formula (C, 3HS # CH2 # COOH) 2Ca + C02 + H20-2C, 3H ,, # CH2 # COOH + CaC0, a small one Amount of acid that can be detected by the smell and the person wearing the oxygen device indicates the imminent exhaustion of his device.

Claims (1)

PATENTANSPRUCH: Verfahren zum Anzeigen der beginnenden, Erschöpfung von Kohlensäure absorbierenden Massen, z. B. von Alkalipatronen in Sauerstoffgeräten oder . Austauschmassen 5n1 Natriumsuperoxydgeräten, dadurch gekennzeichnet, daB in den Weg, den die Atemluft nach der Berührung mit äen Kohlensäure absorbrbrenden- Massen zum Einatmer nimmt, an sich geruchlose Salze, wie phenylessigsaures Calcium, eingeschaltet werden, die mit Kohlensäure unter Freisetzung von stark riechenden oder schmeckenden Säuren reagieren-PATENT CLAIM: Method for indicating the beginning of exhaustion of carbonic acid absorbing Masses, e.g. B. from alkaline cartridges in oxygen devices or. Exchange masses 5n1 sodium superoxide devices, thereby marked that in the way the air breathed after coming into contact with carbonic acid absorbing masses to the inhaler, odorless salts per se, such as phenylacetic acid Calcium, turned on, the carbonated with the release of strong smelling or tasting acids -
DE1935C0051177 1935-12-22 1935-12-22 Process for indicating the beginning exhaustion of carbonic acid-absorbing masses Expired DE689790C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1935C0051177 DE689790C (en) 1935-12-22 1935-12-22 Process for indicating the beginning exhaustion of carbonic acid-absorbing masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1935C0051177 DE689790C (en) 1935-12-22 1935-12-22 Process for indicating the beginning exhaustion of carbonic acid-absorbing masses

Publications (1)

Publication Number Publication Date
DE689790C true DE689790C (en) 1940-04-04

Family

ID=7027344

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1935C0051177 Expired DE689790C (en) 1935-12-22 1935-12-22 Process for indicating the beginning exhaustion of carbonic acid-absorbing masses

Country Status (1)

Country Link
DE (1) DE689790C (en)

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