CN109239260A - A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water - Google Patents
A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water Download PDFInfo
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- CN109239260A CN109239260A CN201811235832.6A CN201811235832A CN109239260A CN 109239260 A CN109239260 A CN 109239260A CN 201811235832 A CN201811235832 A CN 201811235832A CN 109239260 A CN109239260 A CN 109239260A
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- titration
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- dispersing agent
- chloride content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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Abstract
The present invention relates to a kind of titration methods for dodecyl benzyl dimethyl ammonium chloride content measurement in water, keep titration solution constant temperature, dispersing agent is added in titration solution, carries out titration operation after mixing evenly.In the present invention, dimethyl sulfoxide, ethyl acetate and dehydrated alcohol are mixed to form uniform dispersing agent, is then added in titration solution according to a certain percentage under constant temperature conditions, subsequent titration operation can be carried out after mixing evenly.Above-mentioned dispersing agent promotion is insoluble in the solid particle dispersions of water in water, while being also prevented from the sedimentation and cohesion of fixed particle, finally reduces the generation of bright red color agglomeration, makes fully reacting, improve the accuracy of measurement, reduce titration process the time it takes.
Description
Technical field
The invention belongs to surfactant detection technique fields, more particularly, to one kind for dodecyl dimethyl in water
The titration method of benzyl ammonium chloride content measurement.
Background technique
Dodecyl benzyl dimethyl ammonium chloride (1227) belongs to quaternary ammonium salt surface active agent, is at industrial circulating cooling water
Common fungicide in reason.Active matter content is the important indicator for influencing its bactericidal effect, the measurement side of 1227 active matter contents
Method is similar with quaternary ammonium salt, and existing chemical industry standard uses sodium tetraphenylborate precipitation active matter, is referred to dichlorofluorescein discoloration
Show the titration method of terminal to measure 1227 active matter quality score of water treatment agent.But it is surveyed in the existing chemical industry standard of application
It is found during 1227 active matter content of water treatment agent, when sediment is by bright red discoloration yellowly in the liquid phase, it is easy to be formed
Even there is sediment in the agglomeration of bright red color, and titration end-point is difficult to judge.Since handsome red precipitate agglomerates, prevent sediment from complete
Reaction is caused not exclusively to produce biggish analytical error at terminal yellow by bright red discoloration entirely, so that measurement result is inaccurate
Really, the active matter quality fractional value measured is relatively low, affects the Accurate Determining using standard method to 1227 active matter contents.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide reduce the generation of bright red color agglomeration, make to have reacted
Entirely, a kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water of measurement accuracy is improved.
Specific technical solution of the present invention is as follows:
A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water, it is characterised in that: protect
Titration solution constant temperature is held, dispersing agent is added in titration solution, carries out titration operation after mixing evenly.
Further more, the volume ratio of dispersing agent and titration solution is 1:5.
Further more, the constant temperature is 35 DEG C.
Further more, the dispersing agent includes dimethyl sulfoxide, ethyl acetate and dehydrated alcohol.
Further more, the weight ratio of dimethyl sulfoxide, ethyl acetate and dehydrated alcohol is 1:1:2.5.
The advantages of the present invention are:
In the present invention, dimethyl sulfoxide, ethyl acetate and dehydrated alcohol are mixed to form uniform dispersing agent, so
It is added in titration solution according to a certain percentage under constant temperature conditions afterwards, subsequent titration operation can be carried out after mixing evenly.
Above-mentioned dispersing agent promotion is insoluble in the solid particle dispersions of water in water, while being also prevented from the sedimentation and cohesion of fixed particle, most
The generation for reducing the agglomeration of bright red color eventually, makes fully reacting, improves the accuracy of measurement, reduce that titration process spent when
Between.
Specific embodiment
The present invention is described in further detail by following embodiment, but the technology contents that are described of the present embodiment be it is illustrative,
Without being restrictive, protection scope of the present invention should not be limited to according to this.
A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water, innovation of the invention exist
In: titration solution constant temperature is kept, dispersing agent is added in titration solution, carries out titration operation after mixing evenly.
Wherein, the volume ratio of dispersing agent and titration solution is 1:5.Constant temperature is 35 DEG C.Dispersing agent includes dimethyl sulfoxide, second
Acetoacetic ester and dehydrated alcohol.The weight ratio of dimethyl sulfoxide, ethyl acetate and dehydrated alcohol is 1:1:2.5.
Dimethyl sulfoxide, ethyl acetate and dehydrated alcohol are weighed, by dimethyl sulfoxide and ethyl acetate by 1mL/s's
Flow velocity is sequentially added into dehydrated alcohol, and stirring is until solution stable homogeneous, forms dispersing agent clockwise.
Conventional titration method can generate the agglomeration of bright red color, need to be stirred continuously a bright red color agglomeration dissolution, relatively time-consuming.It uses
After the present invention, the generation of bright red color agglomeration is reduced, reduces the time for waiting the agglomeration dissolution of bright red color, can about save
The time of 30%-40%.
In the present invention, dimethyl sulfoxide, ethyl acetate and dehydrated alcohol are mixed to form uniform dispersing agent, so
It is added in titration solution according to a certain percentage under constant temperature conditions afterwards, subsequent titration operation can be carried out after mixing evenly.
Above-mentioned dispersing agent promotion is insoluble in the solid particle dispersions of water in water, while being also prevented from the sedimentation and cohesion of fixed particle, most
The generation for reducing the agglomeration of bright red color eventually, makes fully reacting, improves the accuracy of measurement, reduce that titration process spent when
Between.
Claims (5)
1. a kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water, it is characterised in that: keep
Dispersing agent is added in titration solution constant temperature in titration solution, carries out titration operation after mixing evenly.
2. a kind of titration side for dodecyl benzyl dimethyl ammonium chloride content measurement in water according to claim 2
Method, it is characterised in that: the volume ratio of dispersing agent and titration solution is 1:5.
3. a kind of titration side for dodecyl benzyl dimethyl ammonium chloride content measurement in water according to claim 2
Method, it is characterised in that: the constant temperature is 35 DEG C.
4. according to claim 1 or 2 or 3 a kind of for dodecyl benzyl dimethyl ammonium chloride content measurement in water
Titration method, it is characterised in that: the dispersing agent includes dimethyl sulfoxide, ethyl acetate and dehydrated alcohol.
5. a kind of titration side for dodecyl benzyl dimethyl ammonium chloride content measurement in water according to claim 4
Method, it is characterised in that: the weight ratio of dimethyl sulfoxide, ethyl acetate and dehydrated alcohol is 1:1:2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235832.6A CN109239260A (en) | 2018-10-23 | 2018-10-23 | A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811235832.6A CN109239260A (en) | 2018-10-23 | 2018-10-23 | A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water |
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| CN109239260A true CN109239260A (en) | 2019-01-18 |
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| CN201811235832.6A Pending CN109239260A (en) | 2018-10-23 | 2018-10-23 | A kind of titration method for dodecyl benzyl dimethyl ammonium chloride content measurement in water |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720773A (en) * | 2009-12-29 | 2010-06-09 | 华南农业大学 | Insecticidal composition of tea saponin and rotenone |
| CN101862619A (en) * | 2010-06-22 | 2010-10-20 | 山东省科学院新材料研究所 | Block type polymer dispersant and preparation method thereof |
| CN103265664B (en) * | 2013-05-17 | 2015-04-08 | 江苏华大新材料有限公司 | Hyperbranched polyester polyol for polyurethane synthetic leather and preparation method thereof |
| CN104525105A (en) * | 2015-01-12 | 2015-04-22 | 国家电网公司 | Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water |
| CN107449856A (en) * | 2017-09-12 | 2017-12-08 | 国网天津市电力公司电力科学研究院 | The titration method of dodecyl benzyl dimethyl ammonium chloride content in a kind of water |
-
2018
- 2018-10-23 CN CN201811235832.6A patent/CN109239260A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720773A (en) * | 2009-12-29 | 2010-06-09 | 华南农业大学 | Insecticidal composition of tea saponin and rotenone |
| CN101862619A (en) * | 2010-06-22 | 2010-10-20 | 山东省科学院新材料研究所 | Block type polymer dispersant and preparation method thereof |
| CN103265664B (en) * | 2013-05-17 | 2015-04-08 | 江苏华大新材料有限公司 | Hyperbranched polyester polyol for polyurethane synthetic leather and preparation method thereof |
| CN104525105A (en) * | 2015-01-12 | 2015-04-22 | 国家电网公司 | Preparation method for microwave phosphorus ammonium type zeolite material for desulfurization waste water |
| CN107449856A (en) * | 2017-09-12 | 2017-12-08 | 国网天津市电力公司电力科学研究院 | The titration method of dodecyl benzyl dimethyl ammonium chloride content in a kind of water |
Non-Patent Citations (1)
| Title |
|---|
| 周桃玉 等: "水处理剂 1227活性物含量测定方法的改进", 《工业水处理》 * |
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Application publication date: 20190118 |