CN201583533U - Weighing titration bottle - Google Patents

Abstract

The utility model discloses a weighing titration bottle, comprising a soft plastic bottle body and a capillary burette which is arranged at the upper part of the soft plastic bottle body in an outwards convex way. The capillary burette is communicated with the inner chamber of the bottle. The weighing titration bottle has simple structure, small volume, light weight, easy manufacturing, convenient transportation, movement and weighing, low requirement on a balance and low cost, is not easy to be damaged; and the titration of the solution is controlled through extruding the bottle body or the bottle bottom, therefore, the weighing titration bottle has simple and convenient operation and favorable application prospect.

Description

Weighing titration bottle

technical field

The utility model relates to a titration bottle, in particular to a weighing titration bottle.

Background technique

The National Standard of the People's Republic of China GB 10738-2007 General Rules for Determination of Working Standard Reagent Content The weighing titration method stipulates the titration analysis method that uses an analytical balance to weigh the quality of the operating solution or the reference solution, and determines the end point with the indicator method. It mainly includes the following steps: ① Put the weighed standard substance or sample in the reaction bottle and add the indicator solution; ② Put the operating solution or reference solution in a dry weighing titration bottle and weigh it; ③ Connect the weighing and titration device (including weighing titration bottle, reaction bottle, electromagnetic stirrer and double bulb tube), start the electromagnetic stirrer, titrate, drop to the end point, take off the weighing titration bottle, and weigh. The difference between the two weighings is the mass of the consumed operating solution or reference solution.

The weighing titration bottle used has the following problems: ① complex structure, large volume, and inconvenient weighing; it is made of glass material, heavy in weight, has high requirements for the sensitivity and maximum weighing of the balance, and has high cost; It is easy to be damaged, and it is inconvenient to transport and move, and the connection ports of different parts must be frosted, so attention must be paid to maintenance at all times; ②The titration of the solution is controlled by the piston, and the operation is not convenient enough.

Utility model content

In view of this, the purpose of this utility model is to provide a weighing titration bottle, simple in structure, small in size, light in weight, easy to manufacture, not easy to damage, convenient to transport, move and weigh, low in requirements for the balance, low in cost and easy to operate. Simple.

To achieve this purpose, the utility model adopts the following technical solutions:

The weighing titration bottle comprises a soft plastic bottle body and a capillary dropper protruding outwards from the upper part of the soft plastic bottle body, and the capillary dropper communicates with the inner chamber of the bottle.

The weighing titration bottle has two typical implementations: one is that the soft plastic bottle body and the capillary dropper are integrated; the other is that the bottle cap is also included, and the bottle cap is detachably arranged on the On the upper part of the bottle body, an outwardly protruding capillary dropper is arranged on the bottle cap.

Further, the weighing titration bottle also includes a dropper cap, and the dropper cap is detachably sleeved on the outlet end of the capillary dropper.

Further, the weighing titration bottle also includes a connection chain, one end of the connection chain is connected to the dropper cap, and the other end is detachably arranged on the soft plastic bottle body, bottle cap or capillary dropper.

Further, the soft plastic bottle has a flat bottom.

The beneficial effects of the utility model are: the provided weighing and titration bottle has simple structure, small volume, light weight, easy manufacture, not easy to damage, convenient transportation, movement and weighing, low requirements on the balance, and low cost; The bottle body or the bottom of the bottle controls the solution for titration, the operation is simple and convenient, and the application prospect is good.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural representation of the first embodiment of weighing titration bottle;

Fig. 2 is a structural schematic diagram of the second embodiment of the weighing titration bottle.

Detailed ways

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Example 1

Fig. 1 is the structural representation of the first embodiment of the weighing titration bottle, as shown in the figure, the weighing titration bottle includes a soft plastic bottle body 1 and a capillary dropper 2 protruding upwards that is arranged on the top of the soft plastic bottle body 1, the capillary The dropper 2 communicates with the inner cavity of the bottle; the bottle body is made of soft plastics such as polytetrafluoroethylene, polyethylene, etc., which is light in weight and has low requirements on the balance, and can be titrated by controlling the solution in the bottle by squeezing the bottle body or the bottom of the bottle. The operation is simple and convenient; of course, except that the capillary dropper 2 protrudes upward and is arranged on the top of the soft plastic bottle body 1, it can also protrude outward and be arranged on the upper side of the soft plastic bottle body 1, so as to achieve the purpose of the present utility model .

In this embodiment, the soft plastic bottle body 1 and the capillary dropper 2 are integrated with a simple structure and low cost. The solution can be sucked into the bottle body by the capillary dropper by squeezing the bottle body or the bottom of the bottle, and then squeezed in the same way. out for titration.

The weighing titration bottle of the present embodiment also includes a dropper cap 3, and the dropper cap 3 is set on the outlet end of the capillary dropper in a detachable manner; the capillary dropper outlet is closed by the capillary cap, which can prevent the solution in the bottle from volatilizing or being contaminated. pollute.

In order to prevent the dropper cap from being lost or polluted, the weighing titration bottle of the present embodiment also includes a connecting chain 4, one end of the connecting chain 4 is connected to the dropper cap 3, and the other end is detachably arranged on the capillary dropper 2 . Certainly, the other end of connecting chain 4 also can be arranged on the soft plastic bottle body 1 except being arranged on the capillary dropper 2, all can reach the purpose of the present utility model. The connection chain 4 is set in a detachable manner, which can avoid the influence of the dropper cap on the titration operation.

In this embodiment, the soft plastic bottle body 1 has a flat bottom and can be conveniently placed on a balance pan for weighing.

Example 2

Fig. 2 is a schematic structural view of the second embodiment of the weighing titration bottle, which differs from Example 1 in that the weighing titration bottle of this embodiment also includes a bottle cap 5, which is detachably arranged On the top of the soft plastic bottle body 1, the top of the bottle cap 5 is provided with an upwardly protruding capillary dropper 2; with this structure, a larger mouth of the soft plastic bottle body can be set on the top of the soft plastic bottle body, which is beneficial to fast and convenient Add the solution to the bottle. Of course, the capillary dropper 2 can also protrude outwards and be arranged on the side of the bottle cap 5 except that it protrudes upwards and is arranged on the top of the bottle cap 5; Outside body 1, also can be arranged on the bottle cap 5, all can reach the purpose of the present utility model.

In addition, the soft plastic bottle body of the present utility model can be made into various shapes such as cylindrical, conical or pear-shaped, and the volume can be as small as several milliliters or as large as hundreds of milliliters, all of which can realize the purpose of the present utility model, and can be passed through Change the diameter of the capillary pipette to control the amount of liquid dripped out.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described with reference to the preferred embodiment of the utility model, those of ordinary skill in the art should understand that, Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

1. Weighing titration bottle, it is characterized in that: comprise soft plastic bottle body and the capillary dropper that protrudes outwards is arranged on soft plastic bottle body top, and described capillary dropper communicates with bottle inner cavity. 2. The weighing titration bottle according to claim 1, characterized in that: the soft plastic bottle body and the capillary drop tube are integrated. 3. weighing titration bottle according to claim 1, is characterized in that: also comprise bottle cap, described bottle cap is arranged on the top of soft plastic bottle body in a detachable manner, outwardly protruding is set on the bottle cap. capillary dropper. 4. The weighing titration bottle according to any one of claims 1 to 3, further comprising a dropper cap, the dropper cap is detachably sleeved on the outlet end of the capillary dropper. 5. weighing titration bottle according to claim 4, is characterized in that: also comprise connecting chain, one end of described connecting chain is connected with dropper cap, and the other end is arranged on soft plastic bottle body, bottle body in a detachable manner. cap or capillary dropper. 6. The weighing titration bottle according to claim 5, characterized in that: the soft plastic bottle body is a flat bottom.

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