CN207908453U - A kind of multi-functional compound titration platform - Google Patents
A kind of multi-functional compound titration platform Download PDFInfo
- Publication number
- CN207908453U CN207908453U CN201820321147.4U CN201820321147U CN207908453U CN 207908453 U CN207908453 U CN 207908453U CN 201820321147 U CN201820321147 U CN 201820321147U CN 207908453 U CN207908453 U CN 207908453U
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- titration platform
- main body
- titration
- colorimetric
- platform main
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Abstract
The utility model discloses a kind of multi-functional compound titration platforms, including titration platform main body and fixture, fixture to be set in titration platform main body, further includes：Rotary heating agitating device, colorimetric device, lighting device and solution temperature measuring device, rotary heating agitating device, colorimetric device, lighting device and solution temperature measuring device are arranged in titration platform main body, rotary heating agitating device is set to the lower section of fixture, and colorimetric device is set near rotary heating agitating device.The utility model can meet the experiment demand of rotation, stirring, heating and illumination simultaneously, greatly reduce the harmful effect because of manual operation and experimental situation to titration experiments, improve experimental implementation accuracy, Enhancement test data reliability.
Description
Technical field
The utility model belongs to chemical experimental instrument field, and in particular to a kind of multi-functional compound titration platform.
Background technology
The one kind of titration as chemical experiment method is widely used in the scientific research fields such as chemistry, biology, pharmacy.Pass through
Standard solution is added in titrated solution, the variations such as observation color, sediment and temperature（Heat release or the endothermic reaction）, really
The terminal for determining drop reaction, to be calculated and be analyzed.Under normal circumstances, titration experiments are realized by means of titration platform, domestic
There is now titration platform is usually provided with holder, fixture and easy metal stage body outside, though titration experiments can be completed, there are following
Defect：1. being interfered by manual operation factor larger.Titration experiments require experimental solutions when reacting, and keep same direction circle
Week oscillation, laboratory technician need to observe the variation of solution physical property simultaneously.Laboratory technician precisely completes this process using existing titration platform,
With larger difficulty, easily there is error, influences experimental result；2. being interfered by outside environmental elements larger.Titration experiments requirement
Environment temperature be generally 25 degrees Celsius, and need to be carried out in the good place of light, and during actual experiment, due to objective
The limitation of condition, experiment easily because temperature not enough, insufficient light and influence judgement of the experimenter to titration end-point.
In routine experimentation, reaction solution container needs moving in a circle to same direction for mechanization in an experiment, past
Toward can because manual operation and caused by the uneven, solution of oscillation splash the problems such as.At the same time, experimenter holds colorimetric
Card be inconvenient when colorimetric.
Utility model content
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of multi-functional compound titration platform, together
When meet rotation, stirring, heating and the experiment demand of illumination, greatly reduce because manual operation and experimental situation are to titration experiments
Harmful effect, improve experimental implementation accuracy, Enhancement test data reliability.
The utility model discloses a kind of multi-functional compound titration platforms, including titration platform main body and fixture, fixture to be set to
In titration platform main body, it is characterised in that：Further include：Rotary heating agitating device, colorimetric device, lighting device and solution temperature are surveyed
Device is measured, rotary heating agitating device, colorimetric device, lighting device and solution temperature measuring device are arranged at titration platform main body
On, rotary heating agitating device is set to the lower section of fixture, and colorimetric device is set near rotary heating agitating device.
Further, the rotary heating agitating device includes that heated rotary discs, magnetic stirring apparatus, agitating device are opened
Pass, composite heating rotary switch and temperature and rotating speed display screen, the heated rotary discs are set to the lower section of fixture, the magnetic force
Agitating device includes magnetic devices and magnetic stir bar, and magnetic means is set at heated rotary discs bottom centre, magnetic agitation
Son, which is positioned over, to be filled in experimental solutions container, and magnetic stirring apparatus switch and composite heating rotary switch are set to titration platform main body
Side, temperature and rotating speed display screen are arranged on the table top of titration platform main body.
Further, the lighting device includes that a shadowless lamp and shadowless lamp switch, and shadowless lamp is set to titration platform master
On the table top of body, shadowless lamp switchs the side for being set to titration platform main body.
Further, the solution temperature measuring device includes thermal resistance sensor patch, conducting wire, display screen and display screen
Connection plug, thermal resistance sensor patch are attached to the external container for filling experimental solutions, and display screen and display screen connection plug are set
It sets on the table top of titration platform main body, thermal resistance sensor patch connects display screen connection plug by conducting wire.
Further, the colorimetric device includes colorimetric screen and adjusting knob, and colorimetric screen is set to the platform of titration platform main body
On face, adjusting knob is set to titration platform body side.
Further, the colorimetric screen includes colorimetric card and turntable, and turntable is set to titration platform body interior, colorimetric card
It is set on the outside of turntable, colorimetric card can be shown by the way that the hollow part on titration platform main body table top is arranged, turntable and adjusting knob
Connection.
Further, the hollow part on titration platform main body table top is provided with transparency glass plate, and transparency glass plate uses anti-corrosion
Corrosion material is made.
The utility model has the advantage that：It is the titrimetric experiment device of a set of composite multi-functional, realizes
Reaction solution container can move in a circle to same direction in mechanization in an experiment, avoid manual operation may caused by shake
Swing the problems such as uneven, solution splashes；At the same time can stringent controlling reaction temperature, achieve the purpose that speed reaction rate, one
As for, when temperature increase ten degree, reaction rate can increase 2-4 times.Colorimetric card and experimental bench are combined together, laboratory technician is avoided
Hand-held colorimetric card, facilitates laboratory technician to observe the variation of solution colour, and colorimetric glass plate is using etch-proof material.Relatively
Previous colorimetric card experimental bench, the mode that the colorimetric regulative mode of this experimental bench is adjusted using knob are more convenient.This drop
Determine the self-contained shadow-free light source of platform, when ambient light is according to deficiency, can be good at the variation for observing titrated solution.This titration platform
The variation of solution temperature can also precisely be grasped.At the same time, this titration platform be divided into rotary heating agitating device, colorimetric device,
Four devices of lighting device and solution temperature measuring device, can composition operation, also can be individually operated, according to different titration experiments
The selection of progress is arranged in pairs or groups, convenient and practical.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is buret schematic diagram；
Fig. 3 is thermal resistance sensor patch schematic diagram.
Reference numeral：Display screen 1；Display screen connection plug 2；Fixture 3；Shadowless lamp 4；Shadowless lamp switch 5；Agitating device is opened
Close 6；Composite heating rotary switch 7；Temperature and rotating speed display screen 8；Colorimetric screen 9；Adjusting knob 10；Heated rotary discs 11；Thermoelectricity
Hinder sensor patch 13；Acid buret 14；Base buret 15.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and the scope of protection of the utility model cannot be limited with this.
As shown in Figures 1 to 3, a kind of multi-functional compound titration platform, including titration platform main body, fixture rotary heating stirring dress
It sets, colorimetric device, lighting device and solution temperature measuring device, fixture are set in titration platform main body, rotary heating stirring dress
Set, colorimetric device, lighting device and solution temperature measuring device are arranged in titration platform main body, rotary heating agitating device is set
It is placed in the lower section of fixture, colorimetric device is set near rotary heating agitating device.
Heating and stirring device includes heated rotary discs 11, magnetic stirring apparatus, agitating device switch 6, composite heating rotation
Switch 7 and temperature and rotating speed display screen 8, heated rotary discs 11 are set to the lower section of fixture 3, magnetic stirring apparatus switch 6 and multiple
The side that heating rotary switch 7 is set to titration platform main body is closed, magnetic stirring apparatus includes magnetic devices and magnetic stir bar, magnetic
Power apparatus is set at heated rotary discs bottom centre, and magnetic stir bar, which is positioned over, to be filled in experimental solutions container, opens magnetic force
Agitating device switch 6, magnetic devices drive magnetic stir bar rotation, to be stirred to the experimental solutions in container, stir
Device switch 6 may be configured as multi gear position knob, and rotating speed is adjusted.11 top of heated rotary discs is rotary turnplate, and lower part is provided with
Several resistive heaters are implemented to transfer heat to above while rotation.Heated rotary discs 11 are rotated by composite heating
Switch 7 controls, and composite heating rotary switch 7 heats rotating integrated knob in order to control, knob is divided into two grades, and first grade is straight
Turning knob, rotation rate-controllable are connect, second gear needs push-turn key, is rotated further by knob, and heating temperature is adjusted.Rotating speed and heating temperature
Degree is shown by temperature and rotating speed display screen 8, so as to accurate perception rotating speed and heating temperature, keeps experiment more accurate.
Lighting device includes a shadowless lamp 4 and shadowless lamp switch 5, and shadowless lamp 4 is set on the table top of titration platform main body,
Shadowless lamp switchs the side for being set to titration platform main body, and shadowless lamp 4 is preferably provided at the front side of titration platform main body, when ambient light is shone
When insufficient, shadowless lamp 4 is opened by opening shadowless lamp switch 5, enough illumination conditions are provided for experiment.
Solution temperature measuring device includes thermal resistance sensor patch, conducting wire, display screen and display screen connection plug, thermoelectricity
It is stained with self-adhering type thermal resistance in resistance sensor patch 13, thermal resistance sensor patch 13 is attached to outside the container for filling experimental solutions
Portion, display screen and display screen connection plug are arranged on the table top of titration platform main body, and thermal resistance sensor patch 13 passes through conducting wire
Display screen connection plug 2 is connected, temperature data is transmitted to titration platform internal processor, processor by thermal resistance sensor patch 13
Temperature data is shown by display screen 1, according to the temperature data of its reading, can further be heated to control temperature
Degree.
Colorimetric device includes colorimetric screen 9 and adjusting knob 10, and colorimetric screen 9 is set on the table top of titration platform main body, is adjusted
Knob is set to titration platform body side.Colorimetric screen 9 is provided with multiple color, and colorimetric screen is converted by rotation of adjustment knob 10
Color.
Colorimetric screen 9 includes colorimetric card and turntable, and turntable is set to titration platform body interior, and colorimetric card is set to outside turntable
Side, colorimetric card can show that turntable is connect with adjusting knob 10, colorimetric card by the way that the hollow part on titration platform main body table top is arranged
Piece may be provided with several, and the colorimetric card of different colours is converted by rotation of adjustment knob 10.On titration platform main body table top
Hollow part transparency glass plate can be also set, compare colour atla and its interior arrangement play a protective role, transparency glass plate is preferably adopted
It is made of anticorrosion material, the service life is longer.
When use by taking acid base neutralization titration as an example, acid buret 14 and base buret 15 are clamped in fixture 3 respectively
On, acid buret 14 is clamped in that side of fixture 3 close to heated rotary discs 11, and base buret 15 is clamped in fixture 3
The other side.The conical flask of one cleaning of placement under pipe base buret 15, passes through base buret 15 and releases 25.00 mL
NaOH solution injects conical flask, and 2 drop methyl orange test solutions are added, and solution is in yellow immediately.Conical flask is moved to acid titration
The lower section of pipe 14, while conical flask is placed on heated rotary discs 11, colorimetric screen 10 is adjusted to orange red, is passed through and is adjusted acid buret
The hydrochloric acid of the amount concentration of known substance is added dropwise in 14 piston, meanwhile, it is put into magnetic stir bar in conical flask, opens magnetic force
Agitating device switch 6 is stirred, and solution is made to be sufficiently mixed, and watches the variation and attention of solution colour and colorimetric in conical flask attentively
9 comparison of screen.Hydrochloric acid is added dropwise by acid buret 14 again, OH- concentration is gradually reduced in conical flask.When solution becomes orange red
Color, and no longer fading after half a minute, stops titration, and under accurate recording 14 liquid level of solution of acid buret scale, and it is accurate
Acquire the volume that titration spends hydrochloric acid.To ensure the accuracy measured, above-mentioned titration operation should repeat two to three times, and find out drop
Surely the average value of hydrochloric acid volume is spent.Then according to related quantitative relation, the amount for calculating the substance of NaOH solution to be measured is dense
Degree.
When use by taking silver nitrate titration method as an example, when with silver nitrate titration chloride, since the solubility of silver chlorate is less than
The solubility of siliver chromate after chlorion is precipitated out completely first, then uses chromate to be deposited in the form of siliver chromate, production
Raw brick-red sediment, indicates the arrival of titration end-point.A clean conical flask is placed first on heated rotary discs 11, is taken
50ml water samples are placed in conical flask, can be used directly if the ph values of water sample are in the range of 6.5 to 10.5, beyond this range
Water sample should be adjusted to red with dilute hydrochloric acid or sodium hydroxide solution and just taken off using phenolphthalein as indicator.The chromic acid of 1ml is added
Then potassium solution moves to conical flask under acid buret 14, open shadowless lamp 4, by the piston for adjusting acid buret 14
Silver nitrate standard solution titration is added dropwise, meanwhile, composite heating rotary switch 7 is opened, rotating speed is regulated, makes conical flask towards same
Circle rotation is done in one direction, is sufficiently mixed with solution, and eyes watch the generation of sediment in conical flask attentively always, when brick-red precipitation
Just occur being then titration end-point.
In use, by taking the preparation of permanganate titration liquid and calibration as an example, claimed to a ten thousandth of ± 0.0001g with accurate
Assay balance, accurately weigh through 105 DEG C -110 DEG C standard reagents that drying to constant weight and is cooled to room temperature in drier grass
Sour sodium 0.15g, is placed in the conical flask of 250mL, and 100ml sulfuric acid is added（The concentrated sulfuric acid of 98% concentration of 8ml is gone plus 92ml's
The molar concentration of ionized water, 98% concentration sulphuric acid is 18.4mol/l）, heating water bath at a temperature of 75~80 DEG C, when taper bottleneck is opened
When beginning emits steam, titrated while hot with KMnO4 solution, the concentration 0.02mol/l of KMnO4 solution.When starting titration, speed is suitable
Slowly, it is placed in magnetic stir bar in the solution, after the first drop KMnO4 solution instills, opens magnetic means switch 6, regulates
Rotating speed makes solution be sufficiently mixed, and instills the second drop again after aubergine is taken off.After having Mn2+ generations in solution, reaction rate
Accelerate, rate of titration also can suitably be accelerated, but also can never make under KMnO4 solution continuous flows, when nearly terminal, should slow down titration
Speed fully shakes up simultaneously, is titrated to solution and pink is presented, at this point, sticking thermal resistance sensor patch 13, thermal resistance is passed
Sensor patch 13 connects display screen connection plug 2 by conducting wire, pays attention to the temperature for observing the solution that display screen 1 is shown at this time, and
30 seconds colour-fast, as terminals are kept, when titration end-point, solution temperature should be not less than 55 DEG C.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (7)
1. a kind of multi-functional compound titration platform, including titration platform main body and fixture（3）, fixture（3）It is set in titration platform main body,
It is characterized in that：Further include：Rotary heating agitating device, colorimetric device, lighting device and solution temperature measuring device, rotation add
Thermal agitation device, colorimetric device, lighting device and solution temperature measuring device are arranged in titration platform main body, and rotary heating stirs
It mixes device and is set to fixture（3）Lower section, colorimetric device is set near rotary heating agitating device.
2. the multi-functional compound titration platform of one kind according to claim 1, it is characterised in that：The rotary heating agitating device
Including heated rotary discs（11）, magnetic stirring apparatus, agitating device switch（6）, composite heating rotary switch（7）With temperature and turn
Fast display screen（8）, the heated rotary discs（11）It is set to fixture（3）Lower section, the magnetic stirring apparatus includes magnetic fills
It sets and magnetic stir bar, magnetic means is set to heated rotary discs（11）At bottom centre, magnetic stir bar, which is positioned over, fills reality
It tests in solution container, magnetic stirring apparatus switch（6）With composite heating rotary switch（7）It is set to the side of titration platform main body,
Temperature and rotating speed display screen（8）It is arranged on the table top of titration platform main body.
3. the multi-functional compound titration platform of one kind according to claim 1, it is characterised in that：The lighting device includes one
Shadowless lamp（4）It is switched with shadowless lamp（5）, shadowless lamp（4）It is set on the table top of titration platform main body, shadowless lamp switch（5）Setting
In the side of titration platform main body.
4. the multi-functional compound titration platform of one kind according to claim 1, it is characterised in that：The solution temperature measuring device
Including thermal resistance sensor patch（13）, conducting wire, measuring temperature display screen（1）With display screen connection plug（2）, thermal resistance sensing
Device patch（13）It is attached to the external container for filling experimental solutions, display screen（1）With display screen connection plug（2）It is arranged in titration platform
On the table top of main body, thermal resistance sensor patch（13）Display screen connection plug is connected by conducting wire（2）.
5. the multi-functional compound titration platform of one kind according to claim 1, it is characterised in that：The colorimetric device includes colorimetric
Screen（9）And adjusting knob（10）, colorimetric screen（9）It is set on the table top of titration platform main body, adjusting knob（10）It is set to titration
Platform body side.
6. the multi-functional compound titration platform of one kind according to claim 5, it is characterised in that：The colorimetric screen（9）Including than
Colour atla piece and turntable, turntable are set to titration platform body interior, and colorimetric card is set on the outside of turntable, and colorimetric card can be existed by setting
Hollow part on titration platform main body table top shows, turntable and adjusting knob（10）Connection.
7. the multi-functional compound titration platform of one kind according to claim 6, it is characterised in that：Engraving on titration platform main body table top
Vacancy is provided with transparency glass plate, and transparency glass plate is made of anticorrosion material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321147.4U CN207908453U (en) | 2018-03-09 | 2018-03-09 | A kind of multi-functional compound titration platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820321147.4U CN207908453U (en) | 2018-03-09 | 2018-03-09 | A kind of multi-functional compound titration platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908453U true CN207908453U (en) | 2018-09-25 |
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ID=63558916
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820321147.4U Expired - Fee Related CN207908453U (en) | 2018-03-09 | 2018-03-09 | A kind of multi-functional compound titration platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782342A (en) * | 2020-12-29 | 2021-05-11 | 南京普来森仪器有限公司 | Equipment for realizing automatic titration by adopting temperature |
-
2018
- 2018-03-09 CN CN201820321147.4U patent/CN207908453U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782342A (en) * | 2020-12-29 | 2021-05-11 | 南京普来森仪器有限公司 | Equipment for realizing automatic titration by adopting temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20210309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |