CN102936000B - Experimental method for preparing chlorine gas - Google Patents
Experimental method for preparing chlorine gas Download PDFInfo
- Publication number
- CN102936000B CN102936000B CN201210418176.XA CN201210418176A CN102936000B CN 102936000 B CN102936000 B CN 102936000B CN 201210418176 A CN201210418176 A CN 201210418176A CN 102936000 B CN102936000 B CN 102936000B
- Authority
- CN
- China
- Prior art keywords
- seal box
- well
- plate
- well cave
- chlorine
- 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.)
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- 238000002474 experimental method Methods 0.000 title claims abstract description 27
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 33
- 229910052801 chlorine Inorganic materials 0.000 claims description 33
- 239000000460 chlorine Substances 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 10
- 235000019994 cava Nutrition 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 6
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 5
- AXDJCCTWPBKUKL-UHFFFAOYSA-N 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydron;chloride Chemical compound Cl.C1=CC(=N)C(C)=CC1=C(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 AXDJCCTWPBKUKL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001467 acupuncture Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses an experimental method for preparing chlorine gas, which is carried out in a well plate and a seal box. The method comprises the following steps: a. respectively putting potassium permanganate and a property experimental article into cylindrical wells of the well plate, and horizontally putting the well plate into the seal box; b. adding concentrated hydrochloric acid into the well filled with the potassium permanganate through a filling opening on the seal box cover; c. observing the reactive state of the experimental article in the other well; and d. after the reaction finishes, inverting the seal box, vibrating the seal box until the sodium hydroxide solution sufficiently absorbs excessive chlorine gas, finally, opening the seal box, and cleaning the experimental apparatus. The method disclosed by the invention is convenient to operate, is simple and practical, has the advantage of shorter experimental time, and completes the preparation and experiment of chlorine gas on the premise of effectively ensuring the safety of the experimenter.
Description
Technical field
The present invention relates to a kind of preparation experiment method of chlorine.
Background technology
Chlorine is the toxic gas that a kind of yellow-green colour has irritating smell; In the chemical experiment of middle school's study, the character of chlorine and preparation method are that student must grasp, and therefore, it is especially important that the preparation of chlorine just seems.In conventional classroom instruction process, the preparation experiment method of chlorine is to utilize separating funnel drip concentrated hydrochloric acid and make by heating to being loaded with in the round-bottomed flask of potassium permanganate, and chemical equation is 2KMnO
4+ 16HCl=2KCl+2MnCl
2+ 8H
2o+5Cl
2.In preparation, collection and the performance test process of chlorine, inevitably there is the dissipation of chlorine, because concentrated hydrochloric acid has volatility, easily produce and pollute and experimenter is damaged, more dangerous; In the process of preparing chlorine, also need in addition to collect chlorine by other means, the chlorine after collection carries out the testing of characteristic of chlorine again by special equipment, and process is comparatively loaded down with trivial details, and experimental period is longer.Therefore before classroom instruction, conventionally utilize the chlorine of collecting before the class to carry out the explanation of chlorine character, to shorten experimental period, to accelerate the speed of giving lessons.
Summary of the invention
The technical problem that the present invention solves is to provide the preparation experiment method of the shorter chlorine of a kind of practicality convenient and simple for operation, test period, is effectively ensureing, under the prerequisite of experimenter's safety, to complete preparation and the test of chlorine.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
The preparation experiment method of chlorine, the method is carried out in the plate of well cave, and described well cave plate is the plastics plate that is provided with six cylindrical well caves; Specifically comprise the following steps:
A. in one of them cylindrical well cave of well cave plate, add potassium permanganate solid, in other well caves, add successively dry coloured paper slip, moistening coloured cloth, fuchsin solution, sodium bromide solution, liquor kalii iodide, sodium hydroxide solution; The well cave plate level that is loaded with experiment product is put into the seal box matching with well cave plate;
B. on the lid of seal box, be provided with the well acupuncture point of well cave plate and put corresponding liquid adding hole, adopt glue head dropper to suck a small amount of concentrated hydrochloric acid, by the liquid adding hole on sealing box cover, concentrated hydrochloric acid is added in the well cave that is loaded with potassium permanganate, dropwise rear with sealing plug jam-pack liquid adding hole;
C. observe the response behaviour of experiment product in other well caves;
D. after completion of the reaction, seal box be inverted and shaken seal box, making sodium hydroxide solution fully absorb unnecessary chlorine; Finally open seal box, clean successively seal box, well cave plate and glue head dropper with clear water.
Owing to having adopted above technical scheme, the invention technological progress is as follows.
The present invention proposes a kind of preparation experiment method of new chlorine, in experimentation without heating, absorb by experiment product being placed on to the preparation, experiment and the tail gas that carry out chlorine in well cave plate and seal box, reduced to greatest extent the dissipation of chlorine, effectively ensured experimenter's safety.Adopt present method to carry out preparation and the experiment of chlorine, process operation is simple, experimental period is short, and chlorine can, with using with system, in the time of explanation chlorine character, can be selected different experiment contents, to be conducive to the whole chemical reaction process of students as required.Function to microscale experiment instrument (well cave plate) is expanded, and makes the preparation of chlorine and tests more environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of well of the present invention cave plate.
Fig. 2 is the structural representation of seal box of the present invention.
Wherein: 1, well cave plate, 2. well cave, 3. seal box, 4. sealing box cover, 5. liquid adding hole.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
The preparation experiment method of chlorine, the method is carried out in well cave plate 1 and seal box 3, wherein well cave plate is the plastics plate that is provided with six cylindrical well caves 2, seal box 1 is corresponding with the size shape of well cave plate 3, experimentation Zhong Jing cave plate can conveniently be put into seal box, the top of seal box is provided with the sealing box cover 4 for sealed well cave plate, on sealing box cover 4 with well cave plate in corresponding position, cylindrical well cave 2 be provided with liquid adding hole 5.The method specifically comprises the following steps:
A. in the II of the cylindrical well cave of well cave plate, add potassium permanganate solid, in other well caves, add successively dry coloured paper slip, moistening coloured cloth, fuchsin solution, sodium bromide solution, liquor kalii iodide, sodium hydroxide solution; The well cave plate level that is loaded with experiment product is put into the seal box matching with well cave plate, and build sealing box cover.
B. adopt glue head dropper to suck a small amount of concentrated hydrochloric acid, by the liquid adding hole on sealing box cover, concentrated hydrochloric acid is added in the cylindrical well cave II that is loaded with potassium permanganate, dropwise rear with sealing plug jam-pack liquid adding hole.
C. observe the response behaviour of experiment product in other well caves: when in the process that concentrated hydrochloric acid adds, have yellow-green colour γ-ray emission, just can see that subsequently moistening coloured paper slip slowly fades, illustrate that chlorine has carried out oxidizing reaction to coloured paper slip, coloured paper slip is faded; Dry coloured cloth is owing to not possessing chemical reaction condition, thereby do not fade; Fuchsin solution slowly fades; Sodium bromide solution flavescence, illustrates that sodium bromide solution and chlorine reaction generate simple substance bromine and sodium-chlor, therefore solution flavescence; Liquor kalii iodide changes, and illustrates that liquor kalii iodide and chlorine reaction generate iodine and Repone K, therefore solution flavescence.
D. after completion of the reaction, seal box be inverted and shaken seal box, making sodium hydroxide solution fully absorb unnecessary chlorine; Finally open seal box, clean successively seal box, well cave plate and glue head dropper with clear water, complete whole experimentation.
Certainly, this experimental technique is not only applicable to preparation and the experiment of chlorine, is also applicable to the experiment of preparation and the property experiment, particularly toxic and harmful of other gases, for example SO
2, NO
2deng.
Claims (1)
1. a preparation experiment method for chlorine, is characterized in that: the method is carried out in the plate of well cave, and described well cave plate is the plastics plate that is provided with six cylindrical well caves; Specifically comprise the following steps:
A. in one of them cylindrical well cave of well cave plate, add potassium permanganate solid, in other well caves, add successively dry coloured paper slip, moistening coloured cloth, fuchsin solution, sodium bromide solution, liquor kalii iodide, sodium hydroxide solution; The well cave plate level that is loaded with experiment product is put into the seal box matching with well cave plate;
B. on the lid of seal box, be provided with the well acupuncture point of well cave plate and put corresponding liquid adding hole, adopt glue head dropper to suck a small amount of concentrated hydrochloric acid, by the liquid adding hole on sealing box cover, concentrated hydrochloric acid is added in the well cave that is loaded with potassium permanganate, dropwise rear with sealing plug jam-pack liquid adding hole;
C. observe the response behaviour of experiment product in other well caves;
D. after completion of the reaction, seal box be inverted and shaken seal box, making sodium hydroxide solution fully absorb unnecessary chlorine; Finally open seal box, clean successively seal box, well cave plate and glue head dropper with clear water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418176.XA CN102936000B (en) | 2012-10-26 | 2012-10-26 | Experimental method for preparing chlorine gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210418176.XA CN102936000B (en) | 2012-10-26 | 2012-10-26 | Experimental method for preparing chlorine gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102936000A CN102936000A (en) | 2013-02-20 |
| CN102936000B true CN102936000B (en) | 2014-08-06 |
Family
ID=47694936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210418176.XA Active CN102936000B (en) | 2012-10-26 | 2012-10-26 | Experimental method for preparing chlorine gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102936000B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430099A (en) * | 2016-11-28 | 2017-02-22 | 江苏新思维信息系统工程有限公司 | Safe chlorine gas generating device |
| CN110775943B (en) * | 2018-07-31 | 2023-04-07 | 中国科学院大连化学物理研究所 | High-pressure chlorine generating device |
-
2012
- 2012-10-26 CN CN201210418176.XA patent/CN102936000B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 成洁琼等.有毒气体的制取和性质实验装置.《职业技术》.2012,(第138期),参见第50页1.1，第51页3. * |
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| Publication number | Publication date |
|---|---|
| CN102936000A (en) | 2013-02-20 |
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Owner name: JIANGSU ELIER ELECTRONIC SCIENCE + TECHNOLOGY CO., Free format text: FORMER OWNER: WUXI SHIBEI SENIOR HIGH SCHOOL Effective date: 20141205 |
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Free format text: CORRECT: ADDRESS; FROM: 214045 WUXI, JIANGSU PROVINCE TO: 226000 NANTONG, JIANGSU PROVINCE |
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Effective date of registration: 20180131 Address after: 226000 happy village three groups in the Tongliu highway of Tongliu highway in Gangzha District, Nantong, Jiangsu Patentee after: Nantong happiness Industry Co.,Ltd. Address before: 226000 Jiangsu Province, Nantong city Gangzha District Yongfu Road No. 8 Building 3 Patentee before: JIANGSU ELIER ELECTRICAL TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20201021 Address after: New Jing Zhong Yang She Zhen Tang Suzhou City, Jiangsu province 215600 city of Zhangjiagang City, room 5 No. 10-1 Patentee after: ZHANGJIAGANG OUWEI AUTOMATION RESEARCH AND DEVELOPMENT Co.,Ltd. Address before: 226000 happy village three groups in the Tongliu highway of Tongliu highway in Gangzha District, Nantong, Jiangsu Patentee before: Nantong happiness Industry Co.,Ltd. |
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Effective date of registration: 20230420 Address after: 261000 Marine Chemical Industry Park, Hou Town, Shouguang City, Weifang City, Shandong Province (west of Dadi Road and north of Fengnan Road) Patentee after: Weifang Chunyuan Chemical Co.,Ltd. Address before: 215600 room 5, 10-1 Xin Jing Middle Road, Yang Shi Town, Zhangjiagang, Suzhou, Jiangsu Patentee before: ZHANGJIAGANG OUWEI AUTOMATION RESEARCH AND DEVELOPMENT Co.,Ltd. |