CN206179369U - Verify improvement experimental apparatus of oxygen nature - Google Patents
Verify improvement experimental apparatus of oxygen nature Download PDFInfo
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- CN206179369U CN206179369U CN201621109604.0U CN201621109604U CN206179369U CN 206179369 U CN206179369 U CN 206179369U CN 201621109604 U CN201621109604 U CN 201621109604U CN 206179369 U CN206179369 U CN 206179369U
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Abstract
The utility model provides a verify improvement experimental apparatus of oxygen nature, its main characterized in that: it comprises erlenmeyer flask, the double -hole rubber plug who is equipped with manganese dioxide, the separating funnel who is equipped with hydrogen peroxide solution, six roots of sensation air duct, three emulsion tubes, the drying tube that is equipped with the calcium chloride solid, six haplopore rubber stoppers, the three -neck flask who is equipped with proper amount water, the combustion spoon who is equipped with the charcoal, the interior hard glass pipe by two recesses, the iron stand platform that are equipped with red phosphorus and sulphur, the beaker that is equipped with defecation lime wash, two alcohol burners. The textbook experimental apparatus has the defect: want many bottles of oxygen of advance preparation, do a plurality of experiments, trouble with many sets of devices, not environmental protection. Use the utility model discloses convenient and fast just only can accomplish a plurality of experiments of verifying oxygen chemical property with a device. The utility model discloses not only be applicable to the teacher and do the lecture experiment, still be applicable to the student and be grouping experiment.
Description
First, technical field
The utility model belongs to chemical field, is related to a kind of chemical experiment device, particularly for demonstrating junior middle school chemistry class
The experiment of oxygen property is verified in sheet.
2nd, background technology
Following experiments are usually done when oxygen property is verified in the chemical textbook of junior high school：1st, put a small amount of in combustion spoon
Sulphur, heating, until burning, observes the phenomenon occurred when sulphur burns in atmosphere.Then filling the combustion spoon that ignites sulphur
In putting in the gas bottle for filling oxygen, then observe phenomenon when sulphur burns in oxygen.Relatively sulphur fires in air and in oxygen
It is different what burning has.2nd, put in combustion spoon a small amount of charcoal be heated in atmosphere it is rubescent after put in the gas bottle equipped with oxygen
In, observe phenomenon.3rd, a small amount of red phosphorus is put in combustion spoon, phenomenon is observed in heating, until burning.4th, in spiral helicine thin wire
Matchstick is fastened in end, clamps iron wire with crucible tongs and lights the matchstick of end, whne matchstick will after-flame when, by they by
Lentamente stretch under above and be filled with the gas bottle of oxygen.The do so experiment existing defects in teaching material：1st, produce after combustion of sulfur
Sulfur dioxide, the red phosphorus substantial amounts of white cigarette of generation of burning in atmosphere all easily reveals and pollutes environment in atmosphere.2nd, in gas bottle
Oxygen it is limited, the sulphur or charcoal burning in combustion spoon is insufficient, often there is residue, and thin wire usually can not burn.3rd, it is first accurate
Standby many bottles of oxygen, do respectively multiple experiments, waste time and energy.4th, the device in teaching material is not suitable for student and does grouping experiment.
3rd, utility model content
The utility model purpose is the improvement experimental provision for providing checking oxygen property, can not only using the utility model
The multiple experiments for verifying oxygen property are completed simultaneously, it is convenient and swift, and environmental pollution can be reduced.The utility model is applicable not only to
Lecture experiment is done on classroom, student is applied also for and is done grouping experiment.
The purpose of this utility model is by the following method realizing：
The improvement experimental provision of checking oxygen property, is primarily characterized in that：It is by equipped with manganese dioxide（2）Conical flask
（1）, rubber stopper with double hole（3）, the separatory funnel equipped with hydrogenperoxide steam generator（4）, the first wireway（5）, the first emulsion tube（6）、
Equipped with calcium chloride solid（8）Drying tube（7）, the first single hole rubber stopper（9）, the second wireway（10）, the second emulsion tube（11）、
Second single hole rubber stopper（12）, the 3rd wireway（13）, the there-necked flask equipped with suitable quantity of water（14）, the 3rd single hole rubber stopper
（15）, equipped with charcoal（17）Combustion spoon（16）, the 4th single hole rubber stopper（18）, the 4th wireway（19）, the 3rd emulsion tube
（20）, the 5th wireway（21）, the 5th single hole rubber stopper（22）, equipped with red phosphorus（24）And sulphur（26）In have the hard of two grooves
Matter glass tube（23）, iron stand（25）, the 6th single hole rubber stopper（27）, the 6th wireway（28）, equipped with clarification limewash burning
Cup（29）, the first alcolhol burner（30）, the second alcolhol burner（31）Composition.
Band separatory funnel（4）With the first wireway（5）Rubber stopper with double hole（3）Stopper equipped with manganese dioxide（2）Taper
Bottle（1）, the first emulsion tube（6）Connection is equipped with calcium chloride solid（8）Drying tube（7）Less that end pipe mouth.The second air guide of band
Pipe（10）The first single hole rubber stopper（9）Stopper equipped with calcium chloride solid（8）Drying tube（7）That larger end pipe mouth.Band the
Three wireways（13）Single hole rubber stopper（12）Stopper the there-necked flask equipped with suitable quantity of water（14）The bottleneck on the left side.Band combustion spoon
（16）The 3rd single hole rubber stopper（15）Stopper the there-necked flask equipped with suitable quantity of water（14）Middle bottleneck, combustion spoon（16）In fill
There is charcoal（17）.The 4th wireway of band（19）The 4th single hole rubber stopper（18）Stopper the there-necked flask equipped with suitable quantity of water（14）It is right
The bottleneck on side.Second emulsion tube（11）Connect the first single hole rubber stopper（9）Second wireway of outer end（10）With the second single hole rubber
Leather plug（12）3rd wireway of outer end（13）.Equipped with red phosphorus（24）And sulphur（26）In have the horminess glass tube of two grooves
（23）It is horizontally fixed on iron stand（25）On.The 5th wireway of band（21）The 5th single hole rubber stopper（22）Have in stoppering two it is recessed
The horminess glass tube of groove（23）The left end mouth of pipe, the 3rd emulsion tube（20）Connect the 4th single hole rubber stopper（18）4th air guide of outer end
Pipe（19）With the 5th single hole rubber stopper（22）5th wireway of outer end（21）.The 6th wireway of band（28）The 6th single hole rubber
Plug（27）There is the horminess glass tube of two grooves in stoppering（23）The right-hand member mouth of pipe, the 6th wireway（28）End stretch into equipped with clear
The beaker of clear limewash（29）In.First alcolhol burner（30）It is placed on and is placed with sulphur（26）Horminess glass tube（23）Underface, the
Two alcolhol burners（31）It is placed on and is placed with red phosphorus（24）Horminess glass tube（23）Underface.
Experimentation：First connect instrument, the air-tightness of check device.In conical flask（1）Middle dress characteristic of modest manganese（2）,
Separatory funnel（4）With the first wireway（5）It is respectively inserted in rubber stopper with double hole（3）On, then use band separatory funnel（4）With first
Wireway（5）Rubber stopper with double hole（3）Stopper equipped with manganese dioxide（2）Conical flask（1）.In drying tube（7）Middle dress calcium chloride
Solid（8）, use the first emulsion tube（6）Connection is equipped with calcium chloride solid（8）Drying tube（7）Less that end pipe mouth.By second
Wireway（10）It is inserted in the first single hole rubber stopper（9）On, then with the wireway of band second（10）The first single hole rubber stopper（9）Plug
Calcium chloride solid is tightly housed（8）Drying tube（7）That larger end pipe mouth.By the 3rd wireway（13）It is inserted in the second single hole rubber
Plug（12）On, with the wireway of band the 3rd（13）Single hole rubber stopper（12）Stopper the there-necked flask equipped with suitable quantity of water（14）The left side
Bottleneck.Use band combustion spoon（16）The 3rd single hole rubber stopper（15）Stopper the there-necked flask equipped with suitable quantity of water（14）Middle bottle
Mouthful, combustion spoon（16）In be equipped with charcoal（17）.By the 4th wireway（19）It is inserted in the 4th single hole rubber stopper（18）On, then with band
4th wireway（19）The 4th single hole rubber stopper（18）Stopper the there-necked flask equipped with suitable quantity of water（14）The bottleneck on the right.With
Two emulsion tubes（11）Connect the first single hole rubber stopper（9）Second wireway of outer end（10）With the second single hole rubber stopper（12）Outer end
The 3rd wireway（13）.By red phosphorus（24）And sulphur（26）It is attached separately to horminess glass tube（23）In two grooves in, then
Will be equipped with red phosphorus（24）And sulphur（26）In have the horminess glass tube of two grooves（23）It is horizontally fixed on iron stand（25）On.Will
5th wireway（21）It is inserted in the 5th single hole rubber stopper（22）On, with the wireway of band the 5th（21）The 5th single hole rubber stopper（22）
There is the horminess glass tube of two grooves in stoppering（23）The left end mouth of pipe.With the 3rd emulsion tube（20）Connect the 4th single hole rubber stopper
（18）4th wireway of outer end（19）With the 5th single hole rubber stopper（22）5th wireway of outer end（21）.By the 6th wireway
（28）It is inserted in the 6th single hole rubber stopper（27）On, with the wireway of band the 6th（28）The 6th single hole rubber stopper（27）Have two in stoppering
The horminess glass tube of individual groove（23）The right-hand member mouth of pipe, the 6th wireway（28）End stretch into equipped with clarification limewash beaker
（29）In.The first alcolhol burner（30）It is placed on and is placed with sulphur（26）Horminess glass tube（23）Underface, the second alcolhol burner
（31）It is placed on and is placed with red phosphorus（24）Horminess glass tube（23）Underface.During experiment, toward separatory funnel（4）In plus appropriate peroxidating
Hydrogen solution, opens separatory funnel（4）Piston, hydrogenperoxide steam generator stream enters conical flask（1）With manganese dioxide（2）Contact is produced immediately
The a large amount of bubbles of life, this is that hydrogen peroxide decomposes the oxygen for producing, oxygen Jing calcium chloride solids（8）There-necked flask is entered after drying
（14）In, after a period of time, will be equipped with burning the combustion spoon of red charcoal（16）From there-necked flask（14）Middle bottleneck is stretched into, and is filled in
Tight 3rd single hole rubber stopper（15）, it can be seen at this time charcoal is more prosperous in ratio of combustion air in oxygen, send white light, beaker
（29）In clear stone deashing water become cloudy.Then use the spiral helicine thin wire for having fastened matchstick in end instead and make iron wire in oxygen
The experiment burnt in gas, lights matchstick, and thin wire is lentamente stretched into there-necked flask when matchstick fast after-flame（14）In, this
When can see thin wire vigorous combustion, Mars four is penetrated, generate black solid.Then the second alcolhol burner is lighted（31）Give hard glass
Glass pipe（23）In red phosphorus（24）Heating, soon, red phosphorus（24）Burning produces a large amount of white cigarettes, and white cigarette enters beaker（29）It is middle by stone
Buck absorbs, and eliminates environmental pollution；Light the first alcolhol burner（30）To horminess glass tube（Sulphur in 23（26）Heating, can be with
See sulphur（26）Constantly melting, sulphur soon（26）Burn, produce bright bluish violet flame, the toxic gas of generation enters
Enter beaker（29）In be clarified limewash absorption, it is very environmentally friendly.
The beneficial effects of the utility model are：1st, the multiple experiments for verifying oxygen property can be simultaneously completed, is saved time, laborsaving.
2nd, can by separatory funnel control hydrogenperoxide steam generator amount, reach persistently produce oxygen effect, make sulphur, charcoal and red phosphorus,
Thin wire burning Geng Wang, more thoroughly, phenomenon becomes apparent from.3rd, medicine is placed in a groove, and movement is not susceptible to during burning.4th, produce
Toxic gas and white cigarette absorbed by limewash, reduce environmental pollution.5th, the utility model highly versatile, had both been suitable for teacher and had done
Lecture experiment, is suitable for student and does grouping experiment again.
4th, illustrate
Fig. 1 is structure chart of the present utility model.
Mark in figure is represented respectively：
（1）Conical flask（2）Manganese dioxide（3）Rubber stopper with double hole（4）Separatory funnel equipped with hydrogenperoxide steam generator
（5）First wireway（6）First emulsion tube（7）Drying tube（8）Calcium chloride solid（9）First single hole rubber stopper
（10）Second wireway（11）Second emulsion tube（12）Second single hole rubber stopper（13）3rd wireway（14）It is equipped with
The there-necked flask of water（15）3rd single hole rubber stopper（16）Combustion spoon（17）Charcoal（18）4th single hole rubber stopper
（19）4th wireway（20）3rd emulsion tube（21）5th wireway（22）5th single hole rubber stopper（23）Inside have
The horminess glass tube of two grooves（24）Red phosphorus（25）Iron stand（26）Sulphur（27）6th single hole rubber stopper（28）
6th wireway（29）Beaker equipped with clarification limewash（30）First alcolhol burner（31）Second alcolhol burner
5th, specific embodiment
With reference to specific embodiment, the utility model is described in further detail：
The improvement experimental provision of checking oxygen property, is primarily characterized in that：It is by equipped with manganese dioxide（2）Conical flask
（1）, rubber stopper with double hole（3）, the separatory funnel equipped with hydrogenperoxide steam generator（4）, the first wireway（5）, the first emulsion tube（6）、
Equipped with calcium chloride solid（8）Drying tube（7）, the first single hole rubber stopper（9）, the second wireway（10）, the second emulsion tube（11）、
Second single hole rubber stopper（12）, the 3rd wireway（13）, the there-necked flask equipped with suitable quantity of water（14）, the 3rd single hole rubber stopper
（15）, equipped with charcoal（17）Combustion spoon（16）, the 4th single hole rubber stopper（18）, the 4th wireway（19）, the 3rd emulsion tube
（20）, the 5th wireway（21）, the 5th single hole rubber stopper（22）, equipped with red phosphorus（24）And sulphur（26）In have the hard of two grooves
Matter glass tube（23）, iron stand（25）, the 6th single hole rubber stopper（27）, the 6th wireway（28）, equipped with clarification limewash burning
Cup（29）, the first alcolhol burner（30）, the second alcolhol burner（31）Composition.
Band separatory funnel（4）With the first wireway（5）Rubber stopper with double hole（3）Stopper equipped with manganese dioxide（2）Taper
Bottle（1）, the first emulsion tube（6）Connection is equipped with calcium chloride solid（8）Drying tube（7）Less that end pipe mouth.The second air guide of band
Pipe（10）The first single hole rubber stopper（9）Stopper equipped with calcium chloride solid（8）Drying tube（7）That larger end pipe mouth.Band the
Three wireways（13）Single hole rubber stopper（12）Stopper the there-necked flask equipped with suitable quantity of water（14）The bottleneck on the left side.Band combustion spoon
（16）The 3rd single hole rubber stopper（15）Stopper the there-necked flask equipped with suitable quantity of water（14）Middle bottleneck, combustion spoon（16）In fill
There is charcoal（17）.The 4th wireway of band（19）The 4th single hole rubber stopper（18）Stopper the there-necked flask equipped with suitable quantity of water（14）It is right
The bottleneck on side.Second emulsion tube（11）Connect the first single hole rubber stopper（9）Second wireway of outer end（10）With the second single hole rubber
Leather plug（12）3rd wireway of outer end（13）.Equipped with red phosphorus（24）And sulphur（26）In have the horminess glass tube of two grooves
（23）It is horizontally fixed on iron stand（25）On.The 5th wireway of band（21）The 5th single hole rubber stopper（22）Have in stoppering two it is recessed
The horminess glass tube of groove（23）The left end mouth of pipe, the 3rd emulsion tube（20）Connect the 4th single hole rubber stopper（18）4th air guide of outer end
Pipe（19）With the 5th single hole rubber stopper（22）5th wireway of outer end（21）.The 6th wireway of band（28）The 6th single hole rubber
Plug（27）There is the horminess glass tube of two grooves in stoppering（23）The right-hand member mouth of pipe, the 6th wireway（28）End stretch into equipped with clear
The beaker of clear limewash（29）In.First alcolhol burner（30）It is placed on and is placed with sulphur（26）Horminess glass tube（23）Underface, the
Two alcolhol burners（31）It is placed on and is placed with red phosphorus（24）Horminess glass tube（23）Underface.
Using method of the present utility model：First connect instrument, the air-tightness of check device.In conical flask（1）Middle dress is appropriate
Manganese dioxide（2）, separatory funnel（4）With the first wireway（5）It is respectively inserted in rubber stopper with double hole（3）On, then with band point liquid
Funnel（4）With the first wireway（5）Rubber stopper with double hole（3）Stopper equipped with manganese dioxide（2）Conical flask（1）.In drying tube
（7）Middle dress calcium chloride solid（8）, use the first emulsion tube（6）Connection is equipped with calcium chloride solid（8）Drying tube（7）It is less that
End pipe mouth.By the second wireway（10）It is inserted in the first single hole rubber stopper（9）On, then with the wireway of band second（10）It is first single
Hole rubber stopper（9）Stopper equipped with calcium chloride solid（8）Drying tube（7）That larger end pipe mouth.By the 3rd wireway（13）Insert
In the second single hole rubber stopper（12）On, with the wireway of band the 3rd（13）Single hole rubber stopper（12）Stopper equipped with suitable quantity of water three mouthfuls
Flask（14）The bottleneck on the left side.Use band combustion spoon（16）The 3rd single hole rubber stopper（15）Stopper the there-necked flask equipped with suitable quantity of water
（14）Middle bottleneck, combustion spoon（16）In be equipped with charcoal（17）.By the 4th wireway（19）It is inserted in the 4th single hole rubber stopper
（18）On, then with the wireway of band the 4th（19）The 4th single hole rubber stopper（18）Stopper the there-necked flask equipped with suitable quantity of water（14）
The bottleneck on the right.Use the second emulsion tube（11）Connect the first single hole rubber stopper（9）Second wireway of outer end（10）It is single with second
Hole rubber stopper（12）3rd wireway of outer end（13）.By red phosphorus（24）And sulphur（26）It is attached separately to horminess glass tube（23）In
In two grooves, red phosphorus is then will be equipped with（24）And sulphur（26）In have the horminess glass tube of two grooves（23）It is horizontally fixed on
Iron stand（25）On.By the 5th wireway（21）It is inserted in the 5th single hole rubber stopper（22）On, with the wireway of band the 5th（21）
Five single hole rubber stoppers（22）There is the horminess glass tube of two grooves in stoppering（23）The left end mouth of pipe.With the 3rd emulsion tube（20）Connection
4th single hole rubber stopper（18）4th wireway of outer end（19）With the 5th single hole rubber stopper（22）5th wireway of outer end
（21）.By the 6th wireway（28）It is inserted in the 6th single hole rubber stopper（27）On, with the wireway of band the 6th（28）The 6th single hole rubber
Leather plug（27）There is the horminess glass tube of two grooves in stoppering（23）The right-hand member mouth of pipe, the 6th wireway（28）End stretch into and be equipped with
The beaker of clarification limewash（29）In.The first alcolhol burner（30）It is placed on and is placed with sulphur（26）Horminess glass tube（23）Under just
Side, the second alcolhol burner（31）It is placed on and is placed with red phosphorus（24）Horminess glass tube（23）Underface.During experiment, toward separatory funnel
（4）In plus proper amount of hydrogen peroxide solution, open separatory funnel（4）Piston, hydrogenperoxide steam generator stream enters conical flask（1）With dioxy
Change manganese（2）Contact produces immediately a large amount of bubbles, and this is that hydrogen peroxide decomposes the oxygen for producing, oxygen Jing calcium chloride solids（8）It is dry
There-necked flask is entered after dry（14）In, after a period of time, will be equipped with burning the combustion spoon of red charcoal（16）From there-necked flask（14）In
Between bottleneck stretch into, and stopper the 3rd single hole rubber stopper（15）, it can be seen at this time charcoal in oxygen in ratio of combustion air more
It is prosperous, send white light, beaker（29）In clear stone deashing water become cloudy.Then use instead and fastened the spiral helicine of matchstick in end
Thin wire does the experiment that iron wire burns in oxygen, lights matchstick, lentamente stretches into thin wire when matchstick fast after-flame
There-necked flask（14）In, at this moment can see thin wire vigorous combustion, Mars four is penetrated, and generates black solid.Then second is lighted
Alcolhol burner（31）To horminess glass tube（23）In red phosphorus（24）Heating, soon, red phosphorus（24）Burning produces a large amount of white cigarettes, white cigarette
Into beaker（29）It is middle to be absorbed by limewash, eliminate environmental pollution；Light the first alcolhol burner（30）To horminess glass tube（In 23
Sulphur（26）Heating, it can be seen that sulphur（26）Constantly melting, sulphur soon（26）Burn, produce bright bluish violet fire
Flame, the toxic gas of generation enters beaker（29）In be clarified limewash absorption, it is very environmentally friendly.The utility model has the advantages that：Energy
The multiple experiments for verifying oxygen property are completed simultaneously, are saved time, laborsaving；The amount of hydrogenperoxide steam generator can be controlled by separatory funnel,
The effect for persistently producing oxygen is reached, sulphur, charcoal and red phosphorus, thin wire burning Geng Wang, more thoroughly is made, phenomenon becomes apparent from；Medicine
Place in a groove, movement is not susceptible to during burning；The toxic gas and white cigarette of generation is absorbed by limewash, reduces environment dirty
Dye；The utility model highly versatile, had both been suitable for teacher and had done lecture experiment, student is suitable for again and does grouping experiment.
Claims (1)
1. the improvement experimental provision of oxygen property is verified, is primarily characterized in that：It is by equipped with manganese dioxide（2）Conical flask
（1）, rubber stopper with double hole（3）, the separatory funnel equipped with hydrogenperoxide steam generator（4）, the first wireway（5）, the first emulsion tube（6）、
Equipped with calcium chloride solid（8）Drying tube（7）, the first single hole rubber stopper（9）, the second wireway（10）, the second emulsion tube（11）、
Second single hole rubber stopper（12）, the 3rd wireway（13）, the there-necked flask equipped with suitable quantity of water（14）, the 3rd single hole rubber stopper
（15）, equipped with charcoal（17）Combustion spoon（16）, the 4th single hole rubber stopper（18）, the 4th wireway（19）, the 3rd emulsion tube
（20）, the 5th wireway（21）, the 5th single hole rubber stopper（22）, equipped with red phosphorus（24）And sulphur（26）In have the hard of two grooves
Matter glass tube（23）, iron stand（25）, the 6th single hole rubber stopper（27）, the 6th wireway（28）, equipped with clarification limewash burning
Cup（29）, the first alcolhol burner（30）, the second alcolhol burner（31）Composition, band separatory funnel（4）With the first wireway（5）Diplopore rubber
Leather plug（3）Stopper equipped with manganese dioxide（2）Conical flask（1）, the first emulsion tube（6）Connection is equipped with calcium chloride solid（8）It is dry
Dry pipe（7）Less that end pipe mouth, the second wireway of band（10）The first single hole rubber stopper（9）Stopper equipped with calcium chloride solid
（8）Drying tube（7）That larger end pipe mouth, the 3rd wireway of band（13）Single hole rubber stopper（12）Stopper equipped with suitable quantity of water
There-necked flask（14）The bottleneck on the left side, band combustion spoon（16）The 3rd single hole rubber stopper（15）Stopper equipped with suitable quantity of water three mouthfuls of burnings
Bottle（14）Middle bottleneck, the 4th wireway of band（19）The 4th single hole rubber stopper（18）Stopper the there-necked flask equipped with suitable quantity of water
（14）The bottleneck on the right, the second emulsion tube（11）Connect the first single hole rubber stopper（9）Second wireway of outer end（10）With second
Single hole rubber stopper（12）3rd wireway of outer end（13）, equipped with red phosphorus（24）And sulphur（26）In have the hard glass of two grooves
Glass pipe（23）It is horizontally fixed on iron stand（25）On, the 5th wireway of band（21）The 5th single hole rubber stopper（22）Have two in stoppering
The horminess glass tube of individual groove（23）The left end mouth of pipe, the 3rd emulsion tube（20）Connect the 4th single hole rubber stopper（18）The 4th of outer end
Wireway（19）With the 5th single hole rubber stopper（22）5th wireway of outer end（21）, the 6th wireway of band（28）The 6th single hole
Rubber stopper（27）There is the horminess glass tube of two grooves in stoppering（23）The right-hand member mouth of pipe, the 6th wireway（28）End stretch into dress
There is the beaker of clarification limewash（29）In, the first alcolhol burner（30）It is placed on and is placed with sulphur（26）Horminess glass tube（23）Under just
Side, the second alcolhol burner（31）It is placed on and is placed with red phosphorus（24）Horminess glass tube（23）Underface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109604.0U CN206179369U (en) | 2016-10-11 | 2016-10-11 | Verify improvement experimental apparatus of oxygen nature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109604.0U CN206179369U (en) | 2016-10-11 | 2016-10-11 | Verify improvement experimental apparatus of oxygen nature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179369U true CN206179369U (en) | 2017-05-17 |
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ID=58677308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109604.0U Expired - Fee Related CN206179369U (en) | 2016-10-11 | 2016-10-11 | Verify improvement experimental apparatus of oxygen nature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206179369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221241A (en) * | 2017-06-16 | 2017-09-29 | 罗相平 | One kind teaching chemical experimental instrument |
-
2016
- 2016-10-11 CN CN201621109604.0U patent/CN206179369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221241A (en) * | 2017-06-16 | 2017-09-29 | 罗相平 | One kind teaching chemical experimental instrument |
| CN107221241B (en) * | 2017-06-16 | 2024-01-23 | 罗相平 | Teaching chemistry experiment instrument |
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