CN105206152A - Environment-friendly experimental device with exploration of conditions needed by combustion of combustibles - Google Patents
Environment-friendly experimental device with exploration of conditions needed by combustion of combustibles Download PDFInfo
- Publication number
- CN105206152A CN105206152A CN201410263240.0A CN201410263240A CN105206152A CN 105206152 A CN105206152 A CN 105206152A CN 201410263240 A CN201410263240 A CN 201410263240A CN 105206152 A CN105206152 A CN 105206152A
- Authority
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- China
- Prior art keywords
- test tube
- separating funnel
- tube
- hot water
- phosphorus
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- DJFBJKSMACBYBD-UHFFFAOYSA-N phosphane;hydrate Chemical compound O.P DJFBJKSMACBYBD-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000012360 testing method Methods 0.000 claims description 42
- 239000000523 sample Substances 0.000 claims description 7
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 17
- 239000003814 drug Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 3
- 229940079593 drug Drugs 0.000 abstract 1
- 230000001535 kindling effect Effects 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention provides an environment-friendly experimental device with the exploration of the conditions needed by the combustion of combustibles. The device is characterized by comprises a wide-mouth bottle (1), a double-hole rubber plug (2), a liquid separating funnel (3), a catheter (4), a large beaker (5), a tube (6) and a tube (7). The tube (6) with red phosphorus in side and the tube (7) with hot water and white phosphorus inside are placed in the large beaker with hot water inside at the same time, the catheter (4) extends into the tube (7) and is close to the white phosphorus. The piston of the liquid separating funnel is opened, the water in the liquid separating funnel flows into the wide-mouth bottle, the air in the wide-mouth bottle enters into the tube (7) and is in contact with the white phosphorus, the white phosphorus burns, and the red phosphorus in the tube (6) does not burns. An existing experimental device with the exploration of the conditions needed by the combustion of combustibles has defects and is not environment-friendly, and is not suitable for grouping experiments by students. The device is suitable for experimental demonstration by a teacher and is also suitable for the grouping experiments by the students, the device is environment-friendly, and drugs are saved.
Description
one, technical field
the invention belongs to chemical field, relate to a kind of chemical experiment device, particularly for demonstrating experiment junior middle school chemistry textbook being probed into condition needed for combustible combustion.
two, background technology
the existing experimental provision existing defects probing into condition needed for combustible combustion.As ninth grade chemistry the 99th page, the textbook exercise of publishing Shanghai education publishing house in January, 2012 with put into practice the 2nd inscribe in experiment: be equipped with in the large beaker of hot water at one and put a white phosphorus, beaker upper cover one copper sheet, white phosphorus is put in one end of copper sheet, and the other end puts red phosphorus.By observing the white phosphorus burning on copper sheet, red phosphorus does not burn to prove that combustible combustion need meet two conditions simultaneously: 1, combustible contacts with oxygen; 2, the temperature of combustible will reach kindling point.The experiment Shortcomings of condition needed for combustible combustion is probed into: produce a large amount of white cigarettes when the white phosphorus 1, on copper sheet burns and pollute the environment with this device.The heat of 2, releasing during white phosphorus burning passes to red phosphorus by copper sheet, and the temperature of red phosphorus likely reaches kindling point and blazes up.3, during white phosphorus burning, splashes also may make red phosphorus blaze up and produce more white cigarette.This device is not more suitable for student and does grouping experiment.
three, summary of the invention
the object of the present invention is to provide a kind of environment-friendly type experimental provision probing into condition needed for combustible combustion.Make device not be only applicable to teacher's lecture experiment, but also be applicable to student and do grouping experiment, and can environmental pollution be reduced.
the object of the invention is to realize by the following method:
probe into the environment-friendly type experimental provision of condition needed for combustible combustion, its principal character is: it is made up of wide-necked bottle (1), rubber stopper with double hole (2), separating funnel (3), conduit (4), large beaker (5), test tube (6), test tube (7), the hot water of 2/3rds glasss more than 80 DEG C is housed in large beaker, test tube is equipped with a small amount of red phosphorus in (6), the hot water of 1/3rd test tubes and a small amount of white phosphorus are housed in test tube (7), in separating funnel, water are housed.
experimentation: connect instrument, conduit and separating funnel are connected on rubber stopper with double hole, jam-pack rubber stopper with double hole on wide-necked bottle, the impermeability of testing fixture.A small amount of red phosphorus is put into test tube (6), and being put into by a small amount of white phosphorus has in the test tube (7) of hot water, and the temperature filling 2/3rds glasss in large beaker (5) is the hot water of more than 80 DEG C.Test tube (6), test tube (7) are put into the large beaker containing hot water simultaneously, and test tube mouth upwards, stretches into conduit in test tube (7), the white phosphorus of conduit mouth in test tube (7).Because the kindling point of red phosphorus is 200 DEG C, the temperature of hot water less than 100 DEG C, so test tube (6) though in red phosphorus contact with air and also do not burn.The kindling point of white phosphorus is 40 DEG C, but white phosphorus is put and do not contacted with oxygen in the hot water, also do not burn so start white phosphorus, but by adding water in separating funnel, open the piston of separating funnel, after water in separating funnel flows to wide-necked bottle, the air in wide-necked bottle enters test tube (7) and contacts with the white phosphorus in hot water, and therefore the white phosphorus in water blazes up, because burning is carried out in water, so the white cigarette produced can be only absorbed by the water, not easily spread in atmosphere, decrease environmental pollution.By this experiment, prove that combustible combustion needs to meet two conditions simultaneously: 1, combustible contacts with oxygen; 2, the temperature of combustible reaches kindling point.
beneficial effect of the present invention for: 1, probe into the experiment of condition needed for combustible combustion with the present invention's demonstration, because white phosphorus is at submerged combustion, the white cigarette of generation is water-soluble, is not easily diffused in air, because this reducing environmental pollution.2, can control by separating funnel the water yield that flows in wide-necked bottle, reach the object controlling reaction rate, make reaction occur at any time to stop at any time, save medicine.3, highly versatile of the present invention, can reuse, and is not only suitable for teacher's lecture experiment, but also applicable student does grouping experiment.
four, accompanying drawing explanation
fig. 1 is structural drawing of the present invention.
mark in figure represents respectively:
(1) wide-necked bottle (2) rubber stopper with double hole (3) separating funnel (4) conduit (5) large beaker filled with hot water
(6) test tube (7) test tube (8) red phosphorus (9) white phosphorus
five, embodiment
below in conjunction with embodiment, the invention will be further described:
probe into the environment-friendly type experimental provision of condition needed for combustible combustion, its principal character is: it is made up of wide-necked bottle (1), rubber stopper with double hole (2), separating funnel (3), conduit (4), large beaker (5), test tube (6), test tube (7).The hot water of 2/3rds glasss more than 80 DEG C is housed in large beaker, and test tube is equipped with a small amount of red phosphorus in (6), and the hot water of 1/3rd test tubes and a small amount of white phosphorus are housed in test tube (7).
using method of the present invention: connect instrument, conduit and separating funnel are connected on rubber stopper with double hole, jam-pack rubber stopper with double hole on wide-necked bottle, the impermeability of testing fixture.A small amount of red phosphorus is put in test tube (6), a small amount of white phosphorus is equipped with in the test tube (7) of hot water, test tube (6), test tube (7) are put into large beaker filled with hot water simultaneously, conduit is stretched in test tube (7), the white phosphorus of conduit mouth in test tube (7).White phosphorus in red phosphorus during beginning in test tube (6), test tube (7) does not burn, but to add water in separating funnel and after opening the piston of separating funnel, water in separating funnel flows in wide-necked bottle, and the air in wide-necked bottle enters test tube (7) and contacts with the white phosphorus in hot water.Because white phosphorus is placed in the hot water of more than 80 DEG C, the temperature of white phosphorus has exceeded its 40 DEG C, kindling point, so the white phosphorus in water blazes up.The kindling point of red phosphorus is 200 DEG C, and the red phosphorus temperature in test tube (6) does not reach its kindling point, even if so it contacts with air does not also burn.By this contrast experiment, prove that combustible combustion needs to meet two conditions simultaneously: 1, combustible contacts with oxygen; 2, temperature reaches kindling point.Probe into the experiment of condition needed for combustible combustion with the present invention, advantage is: 1, white phosphorus is at submerged combustion, and the white cigarette of generation is only absorbed by the water, and is not easily diffused in air, so decrease environmental pollution.2, can control by separating funnel the water yield that flows in wide-necked bottle, reach the object controlling reaction rate, make reaction occur at any time to stop at any time, save medicine.3, the present invention can reuse, applied widely, is not only suitable for teacher and does lecture experiment, is also suitable for student and does grouping experiment.
Claims (2)
1. probe into the environment-friendly type experimental provision of condition needed for combustible combustion, its principal character is: it is by wide-necked bottle (1), rubber stopper with double hole (2), separating funnel (3), conduit (4), large beaker (5), test tube (6), test tube (7) forms, the hot water of 2/3rds glasss more than 80 DEG C is housed in large beaker, test tube is equipped with a small amount of red phosphorus in (6), the hot water of 1/3rd test tubes and a small amount of white phosphorus are housed in test tube (7), two test tubes are all placed on and are equipped with in the large beaker of hot water, test tube mouth upwards, conduit (4) stretches in test tube (7) also near white phosphorus, in separating funnel, water is housed.
2. probe into the environment-friendly type experimental provision of condition needed for combustible combustion as claimed in claim 1, its principal character is: the piston opening separating funnel, water in separating funnel flows in wide-necked bottle, and the air in wide-necked bottle enters test tube (7) and contacts with the white phosphorus in hot water, and white phosphorus blazes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263240.0A CN105206152A (en) | 2014-06-15 | 2014-06-15 | Environment-friendly experimental device with exploration of conditions needed by combustion of combustibles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263240.0A CN105206152A (en) | 2014-06-15 | 2014-06-15 | Environment-friendly experimental device with exploration of conditions needed by combustion of combustibles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206152A true CN105206152A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410263240.0A Pending CN105206152A (en) | 2014-06-15 | 2014-06-15 | Environment-friendly experimental device with exploration of conditions needed by combustion of combustibles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105206152A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710405A (en) * | 2017-02-07 | 2017-05-24 | 李慧敏 | Phosphorus combustion device capable of being safely operated |
| CN110379271A (en) * | 2019-08-16 | 2019-10-25 | 董纪英 | Probe into the instrument and operating method of burning condition experiment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591696Y (en) * | 2002-12-13 | 2003-12-10 | 金丽雯 | Non-toxic combustion condition demonstration experimental apparatus |
| CN201423288Y (en) * | 2009-03-23 | 2010-03-17 | 孙若稀 | Experimental device with substance burning conditions |
| CN201549114U (en) * | 2009-10-24 | 2010-08-11 | 江帆 | Burning condition test device |
| CN203931307U (en) * | 2014-06-15 | 2014-11-05 | 林师龙 | Probe into the burn environment-friendly type experimental provision of required condition of combustible |
-
2014
- 2014-06-15 CN CN201410263240.0A patent/CN105206152A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591696Y (en) * | 2002-12-13 | 2003-12-10 | 金丽雯 | Non-toxic combustion condition demonstration experimental apparatus |
| CN201423288Y (en) * | 2009-03-23 | 2010-03-17 | 孙若稀 | Experimental device with substance burning conditions |
| CN201549114U (en) * | 2009-10-24 | 2010-08-11 | 江帆 | Burning condition test device |
| CN203931307U (en) * | 2014-06-15 | 2014-11-05 | 林师龙 | Probe into the burn environment-friendly type experimental provision of required condition of combustible |
Non-Patent Citations (1)
| Title |
|---|
| 张艳琴等: "探究"燃烧的条件"实验改进", 《潍坊教育学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710405A (en) * | 2017-02-07 | 2017-05-24 | 李慧敏 | Phosphorus combustion device capable of being safely operated |
| CN110379271A (en) * | 2019-08-16 | 2019-10-25 | 董纪英 | Probe into the instrument and operating method of burning condition experiment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |