CN207163843U - A kind of easy device of gas method measure soil calcium carbonate content - Google Patents
A kind of easy device of gas method measure soil calcium carbonate content Download PDFInfo
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- CN207163843U CN207163843U CN201720558396.0U CN201720558396U CN207163843U CN 207163843 U CN207163843 U CN 207163843U CN 201720558396 U CN201720558396 U CN 201720558396U CN 207163843 U CN207163843 U CN 207163843U
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- tube
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- calcium carbonate
- buret
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Abstract
A kind of easy device of gas method measure soil calcium carbonate content, it is characterized in that, including wide-mouth bottle (1), glass tube (2) with piston, emulsion tube (3), glass U-tube (4), base buret (5), straight neck funnel (6), iron stand (7), two base burets (5) are fixed with the iron stand (7), the lower section of two base burets (5) is connected by emulsion tube (3), the mouth of pipe of one of buret is connected with straight neck funnel (6), the mouth of pipe of another buret connects a glass U-tube (4), the other end of glass U-tube (4) is connected by one end of emulsion tube (3) with the glass tube (2) with piston, in the other end insertion wide-mouth bottle (1) of glass tube (2) with piston.
Description
Technical field
A kind of measuring apparatus of chemical composition of soil content is the utility model is related to, particularly a kind of gas method measure soil
The easy device of calcium carbonate content.
Background technology
Whether contain carbonate (mainly calcium carbonate) in identification soil is first had to before identifying soil chemical properties.Root
According to the presence or absence of carbon in soil acid calcium and its content how much, not only will appreciate that the general characteristic of soil, also can judge and estimate soil
Situation existing for Minerals nutrient, the degree of alkalization also is understood that for salinization soil.Traditional measurement carbon in soil
The method method with tolerance and neutralization titration of sour calcium content.The device of measurement carbon in soil acid calcium content was complicated in the past, and often surveyed
Soil sample of amount changes primary device again, and program is cumbersome, wastes time and energy.
The method for determining the content of carbon in soil acid calcium, there is neutralization titration, gravimetric method, volumetric method, diffusion method, subtractive
Method, gas method etc., what China was general at present is mainly neutralization titration (also known as Alkali absorption method) and gas method.Neutralization titration
Principle is that a certain amount of standard acid is added into soil, is allowed to and carbonate reaction, then with the excessive acid of standard alkali solution residual titration, is disappeared
The acid of consumption is measured to calculate carbonate content.Because the soil liquid has certain resiliency, the change of indicator color is slow, it is difficult to
Discrimination titration end-point, measurement error are larger.The principle of gas method is that a certain amount of acid, such as 1 are added into soil:3 hydrochloric acid
Solution, CO caused by reaction is collected with gas device2, and measure its volume.According to caused CO2Amount calculates soil carbonate and contained
Amount, due to CO2Density it is more sensitive to atmospheric pressure and temperature, it is therefore desirable to while determine atmospheric pressure and temperature.Gas method is grasped
Make simply, to be easy to grasp, at the same it is also more accurate, substantially meet the required precision of soil chemistry group analysis.Present industry
Standard SL237-1999《Earthwork test rule》In give the detection means of a set of gas method, because its assembling process is complicated,
It is not easy to operate, particularly with the technical staff of non-analysis specialty chemical, is more difficult to left-hand seat operation quickly, does not possess popularization
Property.
Utility model content
The purpose of this utility model is to provide a kind of easy device of gas method measure soil calcium carbonate content, existing to solve
There are apparatus structure complexity, not easy-operating technical problem.
In order to solve the above technical problems, technical scheme is used by the utility model：
A kind of easy device of gas method measure soil calcium carbonate content, including wide-mouth bottle, the glass tube with piston, latex
Pipe, glass U-tube, base buret, straight neck funnel, iron stand, are fixed with two base burets on the iron stand, two
The lower section of base buret is connected by emulsion tube, and the mouth of pipe of one of buret is connected with straight neck funnel, another titration
The mouth of pipe of pipe connects a glass U-tube, one end phase of glass tube of the other end by emulsion tube and with piston of glass U-tube
Even, in the other end insertion wide-mouth bottle of the glass tube with piston.
Preferably, the glass U-tube can also use emulsion tube.
The beneficial effects of the utility model are that apparatus structure is simple, and the technical staff of amateur class can also grasp left-hand seat quickly
Make, while improve measuring method, make calculating process easier.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1. wide-mouth bottles, 2. glass tubes with piston, 3. emulsion tubes, 4. glass U-tubes, 5. base burets, 6. is straight
Neck funnel, 7. iron stands.
Embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of easy device of gas method measure soil calcium carbonate content provided by the utility model, it is living by wide-mouth bottle 1, band
Glass tube 2, emulsion tube 3, glass U-tube 4, base buret 5, straight neck funnel 6, the iron stand 7 of plug form.
It is fixed with two base burets 5 on iron stand 7, the specification of base buret is 25ml or 50ml, two alkali formulas
The lower section of buret 5 is connected by emulsion tube 3, and the mouth of pipe of one of buret is connected with a diameter of 5cm straight neck funnel 6,
The mouth of pipe of another buret connects a glass U-tube 4, and glass U-tube can also be replaced with emulsion tube, glass U-tube 4
The other end is connected by the one end for the glass tube 2 with piston that emulsion tube 3 and length are 8cm, the glass tube 2 with piston it is another
In end insertion 250ml wide-mouth bottles 1.
Determination step
The utility model is implemented：Device is connected by figure first, glass piston is closed, is added in funnel
0.5mol/L sulfuric acid colored solutions (addition methyl red indicator), prevent carbon dioxide to be dissolved in water.Air-tightness is checked, device is not
Gas leakage can be reacted.The sample of weighing or pure calcium carbonate standard items are filled in wide-mouth bottle, 1 at about 2/3 is filled in test tube:3
(V:V hydrochloric acid solution), live test tube with long forceps sub-folder and carefully stand in fill the wide-mouth bottle bottom of sample, tighten on wide-mouth bottleneck
Lid, record tolerance pipe liquid level scale.Reaction starts, and holds wide-mouth bottleneck with hand, inclination spills the hydrochloric acid in test tube
And example reaction, when the buret meniscus for observing connection wide-mouth bottle side stops declining, with hand interval jog wide-mouth bottleneck
4-5 times, untill liquid level no longer declines.Then, the liquid level of tolerance regulation pipe is adjusted, the liquid level for being allowed to gentle buret is high
Degree is consistent, records the liquid level of tolerance pipe, to determine to produce the volume of carbon dioxide.According to aforesaid operations step, weigh dry
The pure calcium carbonate of dry analysis, using the volume of carbon dioxide as ordinate, standard curve is done as abscissa using the quality of calcium carbonate.Root
According to the carbon dioxide volume number of same unit interval determination sample, the mass number of calcium carbonate is found on standard curve, then convert
Into the percentage composition of calcium carbonate.
Claims (2)
1. a kind of easy device of gas method measure soil calcium carbonate content, it is characterised in that including wide-mouth bottle (1), band piston
Glass tube (2), emulsion tube (3), glass U-tube (4), base buret (5), straight neck funnel (6), iron stand (7), the iron
Two base burets (5) are vertically fixed on pallet (7), the lower section of two base burets (5) passes through emulsion tube (3) phase
Even, the mouth of pipe of one of buret is connected with straight neck funnel (6), and the mouth of pipe of another buret connects a glass U-tube
(4), the other end of glass U-tube (4) is connected by one end of emulsion tube (3) with the glass tube (2) with piston, the glass with piston
In the end insertion wide-mouth bottle (1) of glass pipe (2).
2. the easy device of gas method measure soil calcium carbonate content according to claim 1, it is characterised in that the glass
Glass U-tube (4) can also use emulsion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558396.0U CN207163843U (en) | 2017-05-19 | 2017-05-19 | A kind of easy device of gas method measure soil calcium carbonate content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558396.0U CN207163843U (en) | 2017-05-19 | 2017-05-19 | A kind of easy device of gas method measure soil calcium carbonate content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163843U true CN207163843U (en) | 2018-03-30 |
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ID=61709097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720558396.0U Expired - Fee Related CN207163843U (en) | 2017-05-19 | 2017-05-19 | A kind of easy device of gas method measure soil calcium carbonate content |
Country Status (1)
| Country | Link |
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| CN (1) | CN207163843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504909A (en) * | 2020-11-07 | 2021-03-16 | 韶关凯鸿纳米材料有限公司 | Method for measuring ammonium bicarbonate content and zinc oxide production process for controlling ammonium bicarbonate dosage |
-
2017
- 2017-05-19 CN CN201720558396.0U patent/CN207163843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504909A (en) * | 2020-11-07 | 2021-03-16 | 韶关凯鸿纳米材料有限公司 | Method for measuring ammonium bicarbonate content and zinc oxide production process for controlling ammonium bicarbonate dosage |
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| 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: 20180330 Termination date: 20190519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |