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Base burette

A burette and titration technology, which is applied in the field of chemistry, can solve the problems of increased failure probability of titration operation, difficult fixation of glass beads, water leakage and other problems, and achieves the effects of low production cost, convenient operation and accurate measurement results

Inactive Publication Date: 2017-06-16
王翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: to connect the rubber tube at the lower end of the existing alkaline burette, a glass bead is placed in the rubber tube, because the alkali solution is greasy, the glass bead is difficult to fix, and it is easy to slide in the rubber tube to cause water leakage, resulting in failure of the titration operation Increased chance of problems, providing a basic burette

Method used

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Embodiment 1

[0026] The basic burette of this embodiment includes a titration main pipe, a titration side pipe, an air bag, a connecting pipe, and a syringe. The bottom end of the titration main pipe is provided with a tapered nozzle, and the top of the titration main pipe is connected to the air bag. Wherein, the titration side pipe is L-shaped, one end of the titration side pipe is connected with the titration main pipe, and the other end of the titration side pipe is connected with the syringe through a connecting pipe. The titration main pipe is provided with a scale line, and the connection point between the titration side pipe and the titration main pipe is located between the zero scale line and the air bag. By adopting this method, it is possible to prevent the titration main pipe from being poured into the titration side pipe, thereby affecting the accuracy of the measurement result. In this embodiment, the titration side pipe and the titration main pipe are integrally formed.

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Abstract

The invention discloses a base burette. In the prior art, the lower end of a conventional base burette is connected with a rubber tube, and a glass bead is put in the rubber tube; since aqueous alkali is satiny, the glass bead is difficult to fix and prone to sliding in the rubber tube, which leads to water leakage, so the probability of failure of titration operation is increased; and the objective of the invention is to overcome the above problem. The base burette comprise a main titration pipe, a side titration pipe, an air bag, a connecting pipe and a syringe, wherein the bottom end of the main titration pipe is provided with a conical pipe orifice, and the top of the main titration pipe is connected with the air bag. The base burette provided by the invention is ingenious and reasonable in design and convenient to use, effectively avoids a switch structure composed of the glass bead and the rubber tube, can realize rapid and accurate addition of alkaline liquid, and effectively lowers the probability of failure of titration operation.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to the field of chemical instruments, in particular to a basic burette. Background technique [0002] Alkaline burette is a commonly used titration instrument in analytical chemistry. The main structure of the head of the traditional alkaline burette includes two parts: the rubber tube and the glass bead. The opening principle of the control valve is: when the rubber tube near the glass bead is squeezed, a certain cavity is formed between the inner wall of the rubber tube and the glass bead to allow the liquid to pass. [0003] During the titration operation of the alkaline burette, the lower end of the alkaline burette is connected to a rubber tube, and a glass bead is placed in the rubber tube. Due to the greasy alkali solution, the glass bead is difficult to fix and slides in the rubber tube to cause water leakage. Due to this structural defect, the chances of failure of the titration ...

Claims

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Application Information

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IPC IPC(8): G01N31/18
CPCG01N31/18
Inventor 王翔
Owner 王翔
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