CN202948002U - Burette - Google Patents
Burette Download PDFInfo
- Publication number
- CN202948002U CN202948002U CN 201220665015 CN201220665015U CN202948002U CN 202948002 U CN202948002 U CN 202948002U CN 201220665015 CN201220665015 CN 201220665015 CN 201220665015 U CN201220665015 U CN 201220665015U CN 202948002 U CN202948002 U CN 202948002U
- Authority
- CN
- China
- Prior art keywords
- buret
- ball
- burette
- piston
- standard solution
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a burette. The burette comprises a suction ball and a burette, wherein the suction ball includes a compression ball (1), a quantification ball (2), a quantification ball air hole (3), and a connection hole (4); the burette includes a burette body (5), a piston (6), a piston slot (7), and a scale mark (8); and the suction ball is connected with the upper end of the burette through the connection hole (4). The titration operation can be started by turning off the burette piston (6), inserting the lower end of the burette into a standard solution, pressing the compression ball (1) to the quantification ball (2) of the suction ball, releasing the compression ball (1) to suck the standard solution into the burette, adjusting the burette piston (6) until the level of the standard solution in the burette is located at a zero scale mark (8), turning off the burette piston (6), and placing a test sample solution below the burette. The burette provided by the utility model can prevent generation of air bubbles during alkali titration, and is applicable to acid and alkali titrations to obviate use confusion of the burette; and the standard solution can be added quickly to shorten the operation time.
Description
Technical field
The utility model relates to a kind of acid, buret that the alkali formula is general.
Background technology
Titrimetry is that the standard solution with known accurate concentration is added drop-wise in the solution of measured matter until institute adds the solution amount of substance just reacts completely by stoichiometric relationship, then according to the concentration and the volume that consumes of adding standard solution, calculate the analytical approach of measured matter content.In operation, buret used is divided into two kinds of acid buret and base burets.The lower end of base buret connects the cuvette with sharp mouth with proofed sleeve.A glass ball is housed in proofed sleeve.Manage the interior gap that forms toward pushing the proofed sleeve of glass bead outside on one side, making lightly with left hand thumb and forefinger, liquid namely oozes from dropper.During extruding, hand will be placed on the slightly upper of glass bead.If be placed on the bottom of ball, after loosing one's grip, can in most advanced and sophisticated glass tube, bubble appear.Whole exhaust process is more loaded down with trivial details, and will bring error to titration results in case produce bubble.The acid base titration pipe separately uses and also easily makes troubles to the beginner, easily obscures, and finally causes the error of titration results.It is all first it first to be transferred to less glass container from the standard solution reservoir vessel that all burets add standard solution, then its upper end through buret from little glass container is added, more time-consuming.
Summary of the invention
When separately using inconvenience, buret interpolation standard solution operating cost for overcome the resultant error, the acid base titration pipe that use base buret to cause due to easy generation bubble in the past, the utility model provides a kind of buret.
the utility model mainly adopts following technical scheme: a kind of buret comprises inhales ball and buret two parts, inhale bag and draw together compressed ball (1), quantitative ball (2), quantitative ball pore (3), connector (4), buret comprises pipe shaft (5), piston (6), plug groove (7), scale mark (8), it is characterized in that: inhale ball and be connected with the buret upper end by connector (4), close buret stopcock (6), in buret lower end insertion standard solution, press with hand and inhale ball compressed ball (1) to quantitative ball (2), unclamp compressed ball (1), standard solution sucks in buret, regulate buret stopcock (6), making standard solution in buret be in 0 scale mark (8) locates, close buret stopcock (6), titrated need testing solution is put under buret, can begin titration operation.
Described buret capacity can be any one of two kinds of 25.00ml or 50.00ml.
Described quantitative ball forms for the on-deformable material of compression.
When described buret capacity was 25.00ml, the volume of inhaling the disposable imbitition of ball was 20.5ml to 21.5ml.
When described buret capacity was 50.00ml, the volume of inhaling the disposable imbitition of ball was 50.5ml to 51.5ml.
A kind of buret of the utility model and traditional buret relatively have significant advantage, a kind of buret can be avoided producing bubble in alkali formula titration process, can acid, the titration of alkali formula is general, and avoid producing buret and use and obscure, and can add fast standard solution, shorten the running time.
Description of drawings:
Fig. 1 is the elevational schematic view that the utility model is inhaled ball portion, comprising:
Compressed ball (1), quantitative ball (2), quantitative ball pore (3), connector (4).
Fig. 2 is the elevational schematic view of the utility model buret part, comprising:
Pipe shaft (5), piston (6), plug groove (7), scale mark (8).
Embodiment:
In order better to set forth a kind of buret of the utility model, below in conjunction with accompanying drawing, its embodiment, structure, feature are described.
the utility model comprises inhales ball and buret two parts, inhale bag and draw together compressed ball (1), quantitative ball (2), quantitative ball pore (3), connector (4), buret comprises pipe shaft (5), piston (6), plug groove (7), scale mark (8), it is characterized in that: inhale ball and be connected with the buret upper end by connector (4), close buret stopcock (6), in buret lower end insertion standard solution, press with hand and inhale ball compressed ball (1) to quantitative ball (2), unclamp compressed ball (1), standard solution sucks in buret, regulate buret stopcock (6), making standard solution in buret be in 0 scale mark (8) locates, close buret stopcock (6), titrated need testing solution is put under buret, can begin titration operation.
Claims (5)
1. buret, comprise and inhale ball and buret two parts, inhale bag and draw together compressed ball (1), quantitative ball (2), quantitative ball pore (3), connector (4), buret comprises pipe shaft (5), piston (6), plug groove (7), scale mark (8), it is characterized in that: inhale ball and be connected with the buret upper end by connector (4), close buret stopcock (6), in buret lower end insertion vs, press with hand and inhale ball compressed ball (1) to quantitative ball (2), unclamp compressed ball (1), vs sucks in buret, regulate buret stopcock (6), making vs in buret be in 0 scale mark (8) locates, close buret stopcock (6), titrated need testing solution is put under buret, can begin titration operation.
2. a kind of buret according to claim 1 is characterized in that: the buret capacity can be any one of two kinds of 25.00ml or 50.00ml.
3. a kind of buret according to claim 2 is characterized in that: when the buret capacity was 25.00ml, the volume of inhaling the disposable imbitition of ball was 20.5ml to 21.5ml.
4. a kind of buret according to claim 2 is characterized in that: when the buret capacity was 50.00ml, the volume of inhaling the disposable imbitition of ball was 50.5ml to 51.5ml.
5. a kind of buret according to claim 1 is characterized in that: quantitatively ball forms for the on-deformable material of compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665015 CN202948002U (en) | 2012-12-06 | 2012-12-06 | Burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665015 CN202948002U (en) | 2012-12-06 | 2012-12-06 | Burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948002U true CN202948002U (en) | 2013-05-22 |
Family
ID=48423698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665015 Expired - Fee Related CN202948002U (en) | 2012-12-06 | 2012-12-06 | Burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202948002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865344A (en) * | 2015-04-20 | 2015-08-26 | 苏州卫生职业技术学院 | Burette switching device |
| CN107518958A (en) * | 2017-09-14 | 2017-12-29 | 浙江卓旺农业科技有限公司 | Livestock and poultry quantitative tablet taking medicine-feeding device |
-
2012
- 2012-12-06 CN CN 201220665015 patent/CN202948002U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865344A (en) * | 2015-04-20 | 2015-08-26 | 苏州卫生职业技术学院 | Burette switching device |
| CN107518958A (en) * | 2017-09-14 | 2017-12-29 | 浙江卓旺农业科技有限公司 | Livestock and poultry quantitative tablet taking medicine-feeding device |
| CN107518958B (en) * | 2017-09-14 | 2023-09-01 | 浙江卓旺农业科技有限公司 | Quantitative medicine taking and feeding device for livestock and poultry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20171206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |