CA2126737A1 - Acidic gas detector paper - Google Patents

Acidic gas detector paper

Info

Publication number
CA2126737A1
CA2126737A1 CA 2126737 CA2126737A CA2126737A1 CA 2126737 A1 CA2126737 A1 CA 2126737A1 CA 2126737 CA2126737 CA 2126737 CA 2126737 A CA2126737 A CA 2126737A CA 2126737 A1 CA2126737 A1 CA 2126737A1
Authority
CA
Canada
Prior art keywords
gas detector
acidic gas
polyalcohol
detector paper
gas
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
Application number
CA 2126737
Other languages
French (fr)
Other versions
CA2126737C (en
Inventor
Nobuo Nakano
Akihiro Yamamoto
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.)
Riken Keiki KK
Original Assignee
Riken Keiki KK
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 Riken Keiki KK filed Critical Riken Keiki KK
Publication of CA2126737A1 publication Critical patent/CA2126737A1/en
Application granted granted Critical
Publication of CA2126737C publication Critical patent/CA2126737C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A coloring indicator, such as metanil yellow, whose color changes in an acidic environment and a polyalcohol, such as glycerin, are applied over a carrier of porous material. The object gas dissolves in the water absorbed in the polyalcohol and reacts quickly with the coloring indicator. As the degree of reaction is proportional to the amount of the gas, differences in the concentration of the object gas can be accommodated by adjusting the exposure time.
CA 2126737 1993-06-25 1994-06-24 Acidic gas detector paper Expired - Fee Related CA2126737C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP180945/1993 1993-06-25
JP18094593 1993-06-25
JP04193194A JP3206697B2 (en) 1993-06-25 1994-02-16 Acid gas detection paper
JP41931/1994 1994-02-16

Publications (2)

Publication Number Publication Date
CA2126737A1 true CA2126737A1 (en) 1994-12-26
CA2126737C CA2126737C (en) 2004-10-12

Family

ID=26381579

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2126737 Expired - Fee Related CA2126737C (en) 1993-06-25 1994-06-24 Acidic gas detector paper

Country Status (2)

Country Link
JP (1) JP3206697B2 (en)
CA (1) CA2126737C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324491A (en) * 2000-05-17 2001-11-22 Riken Keiki Co Ltd Octafluorocylopentene-measuring apparatus
JP4172779B2 (en) * 2003-08-20 2008-10-29 理研計器株式会社 Louisite detector
JP4225545B2 (en) * 2003-08-20 2009-02-18 理研計器株式会社 Mustard detection device
SG120277A1 (en) * 2004-08-27 2006-03-28 Zellweger Analytics Ag Extended life mineral acid detection tape
JP4666605B2 (en) * 2005-06-17 2011-04-06 理研計器株式会社 Hydrogen fluoride gas detection material
JP4789146B2 (en) * 2006-02-15 2011-10-12 理研計器株式会社 Hexafluorobutadiene detector
JP4124242B2 (en) 2006-05-24 2008-07-23 株式会社村田製作所 Work transfer device and electronic component transfer device
JP5469824B2 (en) * 2008-05-09 2014-04-16 凸版印刷株式会社 Carbon dioxide indicator and package
JP6083065B2 (en) * 2012-06-22 2017-02-22 株式会社 京都モノテック Gas sensor and gas detector using the gas sensor
CN103439323B (en) * 2013-08-05 2015-07-15 广东环凯微生物科技有限公司 Method for quickly determining residual hydrogen peroxide
CN104062295A (en) * 2014-07-16 2014-09-24 武汉大学 Method for determining hydroxyl radicals under hypochlorous acid advanced oxidation system
CN104165888A (en) * 2014-08-13 2014-11-26 国家电网公司 Method for determining content of sodium chlorate in industrial alkali liquor
JPWO2021215288A1 (en) * 2020-04-22 2021-10-28

Also Published As

Publication number Publication date
JP3206697B2 (en) 2001-09-10
JPH0772138A (en) 1995-03-17
CA2126737C (en) 2004-10-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140625