CN104316516A - Chromic material for detecting reductive gas - Google Patents
Chromic material for detecting reductive gas Download PDFInfo
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- CN104316516A CN104316516A CN201410508165.XA CN201410508165A CN104316516A CN 104316516 A CN104316516 A CN 104316516A CN 201410508165 A CN201410508165 A CN 201410508165A CN 104316516 A CN104316516 A CN 104316516A
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- carrier
- chromic material
- color
- reductive gas
- detecting
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Abstract
The invention relates to a chromic material for detecting reductive gas. The chromic material is capable of changing color according to the existence of the reductive gas, belonging to the field of functional materials. The chromic material comprises a developing agent arranged on a carrier, wherein the developing agent adopts potassium permanganate and sodium permanganate with strong oxidizing properties, the carrier adopts aluminum oxide and silicon dioxide with good thermal stability and chemical stability; the carrier is a white porous formed material or powdery material. The chromic material has the beneficial effects that the observation can be conveniently performed according to the color, and no volatile organic matter is contained, no liquid solvent is used, and thus the use process is relatively convenient.
Description
Technical field
The present invention relates to a kind of off-color material detecting reducibility gas, according to self variable color of the existence of reducibility gas, field of functional materials can be belonged to.
Background technology
The sensing of air and detection technique are the important technologies that a lot of field such as environmental protection, instrument and equipment, household service needs to use.Such as, in recent years due to finishing pollution problem, being detected as in order to a kind of novel household service industry of room air, has certain demand at home; In addition, the air detection process of some industrial uses also gets more and more.For the air detection process being applicable to application in household process, adopt the checkout equipment of expensive galvanochemistry, the method such as infrared cannot portion's large-scale promotion within the family, so some quick checkout equipments for formaldehyde have attracted the research of some scholars.
Chinese patent (CN1563954A) discloses a kind of formaldehyde quick detection test paper, utilize the detection paper formaldehyde of dipping AHMT, hydrogen-oxygen agent and potassium metaperiodate, but because AHMT is very unstable in the basic conditions, the Test paper described in the method can not be preserved, and usability is poor; US Patent No. 4511658, disclosed method is on solid support, first form supercarbonate precipitation, then precipitates with the acetone soln process supercarbonate of AHMT, then exposes and detects concentration of formaldehyde in atmosphere; Method disclosed in Chinese patent 200610057924.0 is also carry on the support by highly basic, drops on highly basic after AHMT and acid solution being reacted.The principle that above-mentioned several method all adopts AHMT and formaldehyde reaction to develop the color, also exist cost high, with formaldehyde reaction after before and after contrast unconspicuous shortcoming.
Summary of the invention
The present invention is directed to above-mentioned deficiency, the off-color material of lower, the more easy-operating detection reducibility gas of a kind of testing process cost is provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
Detect an off-color material for reducibility gas, comprise the developer be located on carrier; Described developer adopts potassium permanganate, the sodium permanganate of strong oxidizing property, and described carrier adopts thermal stability and good aluminium oxide, the silicon dioxide of chemically stable.
The invention has the beneficial effects as follows: can observe according to color variable color easily, and also need not use liquid flux containing volatile organism, use procedure is more convenient.Adopt permanganate as color indicator, because the color of potassium permanganate is generally darker purple, and when becoming the manganese compound of lower valency after running into the gas of reductibility, become tawny, instruction for reducibility gas and detection can be realized according to this character.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described carrier is white porosity moulding material or dusty material.
The beneficial effect of above-mentioned further scheme is adopted to be: the high violent pore structure of hydrochlorate own is undeveloped, absorption property is poor, and it is excessively dark directly to apply color, the present invention adopts the porosint of white to be used as carrier, infusion process is utilized to make off-color material function better by the absorption property of carrier namely can be utilized after the solution of permanganate and carrier impregnation, why adopt the porosint of white, that the color of the color and color indicator in order to prevent carrier interacts, and need to use alundum (Al2O3), silicon dioxide and other thermal stability and the good porosint of chemical stability.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Detect an off-color material for reducibility gas, comprise the developer be located on carrier; Described developer adopts potassium permanganate, the sodium permanganate of strong oxidizing property, and described carrier adopts thermal stability and good aluminium oxide, the silicon dioxide of chemically stable.
The present invention is when making, and described carrier is white porosity moulding material or dusty material.
Embodiment 1:
Adopt potassium permanganate as color indicator, flood after its wiring solution-forming with activated alumina, the material obtained after oven dry is aubergine spheroid, becomes Tan solid when running into formaldehyde.
Embodiment 2:
Adopt permanganic acid to receive as color indicator, flood after its wiring solution-forming with silicon dioxide, the material obtained after oven dry is aubergine spheroid, becomes Tan solid when running into formaldehyde.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. detect an off-color material for reducibility gas, it is characterized in that: comprise the developer be located on carrier; Described developer adopts potassium permanganate, the sodium permanganate of strong oxidizing property, and described carrier adopts thermal stability and good aluminium oxide, the silicon dioxide of chemically stable.
2. the off-color material of detection reducibility gas according to claim 1, is characterized in that: described carrier is white porosity moulding material or dusty material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508165.XA CN104316516A (en) | 2014-09-28 | 2014-09-28 | Chromic material for detecting reductive gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508165.XA CN104316516A (en) | 2014-09-28 | 2014-09-28 | Chromic material for detecting reductive gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104316516A true CN104316516A (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410508165.XA Pending CN104316516A (en) | 2014-09-28 | 2014-09-28 | Chromic material for detecting reductive gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN104316516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931432A (en) * | 2015-06-30 | 2015-09-23 | 苏州东辰林达检测技术有限公司 | Carbon oxysulfide detection reagent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511658A (en) * | 1983-02-28 | 1985-04-16 | Kansas State University Research Foundation | Colorimetric detector for formaldehyde vapor |
| CN1563954A (en) * | 2004-04-15 | 2005-01-12 | 上海交通大学 | Fast detecting test. paper for formaldhyde in air |
| CN1660477A (en) * | 2004-02-27 | 2005-08-31 | 上海塞艾生物科技有限公司 | Visual type harmful gas remover and preparing method |
| CN101029870A (en) * | 2006-02-28 | 2007-09-05 | 张佃志 | Methanal fast-inspecting reagent unit and its production |
-
2014
- 2014-09-28 CN CN201410508165.XA patent/CN104316516A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511658A (en) * | 1983-02-28 | 1985-04-16 | Kansas State University Research Foundation | Colorimetric detector for formaldehyde vapor |
| CN1660477A (en) * | 2004-02-27 | 2005-08-31 | 上海塞艾生物科技有限公司 | Visual type harmful gas remover and preparing method |
| CN1563954A (en) * | 2004-04-15 | 2005-01-12 | 上海交通大学 | Fast detecting test. paper for formaldhyde in air |
| CN101029870A (en) * | 2006-02-28 | 2007-09-05 | 张佃志 | Methanal fast-inspecting reagent unit and its production |
Non-Patent Citations (2)
| Title |
|---|
| 管蒙蒙 等: "Sol-gel法制备多孔氧化铝及其对甲醛的吸附研究", 《山东化工》 * |
| 陈雯雯 等: "甲醛快速化学比色检测法的筛选研究", 《中国卫生检验杂志》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931432A (en) * | 2015-06-30 | 2015-09-23 | 苏州东辰林达检测技术有限公司 | Carbon oxysulfide detection reagent and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
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| WD01 | Invention patent application deemed withdrawn after publication |