JPS5642138A - Oxygen detecting agent - Google Patents
Oxygen detecting agentInfo
- Publication number
- JPS5642138A JPS5642138A JP11784079A JP11784079A JPS5642138A JP S5642138 A JPS5642138 A JP S5642138A JP 11784079 A JP11784079 A JP 11784079A JP 11784079 A JP11784079 A JP 11784079A JP S5642138 A JPS5642138 A JP S5642138A
- Authority
- JP
- Japan
- Prior art keywords
- constituent
- oxygen
- detecting agent
- sodium
- agent
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
PURPOSE: To enable easy macroscopic detection of the presence of oxygen based on the change of a color tone by using an oxygen detecting agent prepared by mixing methylene blue, glucose, sodium compound and water.
CONSTITUTION: Methylene blue as a constituent (a) accounting for about 0.001W 1wt% in a detecting agent, glucose as a constituent (b) bearing 5 parts or more to 1 part of the constituent (a), one kind or more of sodium silicate, sodium carbonate, sodium acid carbonate and the like as a constituent (c) bearing 5 parts or more to 1 part of the constituent (b), and water as a constituent (d) accounting for 0.1W 20% in the detecting agent are formed into a composition and mixed into a solid state. The oxygen detecting agent thus produced turns white in the absence of the oxygen, while turning violet through recoloring when it is left in the air. Since this agent can be used repeatedly, the presence of the oxygen in vacuum packing or a closed container employed for preservation of foods or medicines, etc. can be checked up with ease.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11784079A JPS5642138A (en) | 1979-09-17 | 1979-09-17 | Oxygen detecting agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11784079A JPS5642138A (en) | 1979-09-17 | 1979-09-17 | Oxygen detecting agent |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5642138A true JPS5642138A (en) | 1981-04-20 |
JPS6143661B2 JPS6143661B2 (en) | 1986-09-29 |
Family
ID=14721554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11784079A Granted JPS5642138A (en) | 1979-09-17 | 1979-09-17 | Oxygen detecting agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642138A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4476154A (en) * | 1981-06-29 | 1984-10-09 | Tokyo Shibaura Denki Kabushiki Kaisha | Method of manufacturing a glass passivation semiconductor device |
US6703245B2 (en) * | 2001-10-26 | 2004-03-09 | Mitsubishi Gas Chemical Company, Inc. | Oxygen detecting composition |
US20110097811A1 (en) * | 2009-10-28 | 2011-04-28 | Powdertech Co., Ltd. | Oxygen detector and method for manufacturing oxygen detector |
US20110136238A1 (en) * | 2008-06-18 | 2011-06-09 | Teknologian Tutkimuskeskus Vtt | Oxygen indicator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53120493A (en) * | 1977-03-29 | 1978-10-20 | Mitsubishi Gas Chemical Co | Oxygen indicator |
-
1979
- 1979-09-17 JP JP11784079A patent/JPS5642138A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53120493A (en) * | 1977-03-29 | 1978-10-20 | Mitsubishi Gas Chemical Co | Oxygen indicator |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4476154A (en) * | 1981-06-29 | 1984-10-09 | Tokyo Shibaura Denki Kabushiki Kaisha | Method of manufacturing a glass passivation semiconductor device |
US6703245B2 (en) * | 2001-10-26 | 2004-03-09 | Mitsubishi Gas Chemical Company, Inc. | Oxygen detecting composition |
US20110136238A1 (en) * | 2008-06-18 | 2011-06-09 | Teknologian Tutkimuskeskus Vtt | Oxygen indicator |
US20110097811A1 (en) * | 2009-10-28 | 2011-04-28 | Powdertech Co., Ltd. | Oxygen detector and method for manufacturing oxygen detector |
US8415167B2 (en) * | 2009-10-28 | 2013-04-09 | Powdertech Co., Ltd. | Oxygen detector and method for manufacturing oxygen detector |
Also Published As
Publication number | Publication date |
---|---|
JPS6143661B2 (en) | 1986-09-29 |
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