CN105199673A - Application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering - Google Patents
Application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering Download PDFInfo
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- CN105199673A CN105199673A CN201510673215.4A CN201510673215A CN105199673A CN 105199673 A CN105199673 A CN 105199673A CN 201510673215 A CN201510673215 A CN 201510673215A CN 105199673 A CN105199673 A CN 105199673A
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- Prior art keywords
- phenolphthalein
- application
- thymol
- aerosol
- thymolphthalein
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Abstract
The invention discloses an application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering. Specifically, phenolphthalein and thymol phenolphthalein are taken and dissolved in ethyl alcohol, a mixture is added to water dissolved with a surfactant and NaOH, pH of a mixed solution is regulated to 9.5-10, the mixed solution is poured into an aerosol can, the aerosol can is sealed, propane and butane gases are introduced, and a finished product of purple flying-snow aerosol can be obtained. According to the principle of decolorization and colorization of phenolphthalein and thymol phenolphthalein in different acidic and alkaline environments, phenolphthalein and thymol phenolphthalein replace the traditional pigments to develop colors persistently, and the demand of application occasions only requiring temporary color development is met.
Description
Technical field
The present invention relates to field of fine chemical, particularly relate to the application of acid base indicator, specifically phenolphthalein and thymolphthalein replace the application of pigment in fine chemistry industry.
Background technology
Fine chemistry industry has a lot of place all can use pigment, and great majority all need color gorgeous and lasting.But some places do not need so lasting color, preferably at the beginning of use, have gorgeous color, then can disappear does not stay still and vestige.For aerosol, have a kind of toy aerosol, use surfactant dissolves in water, with the third butane for propellent, ejecta is the fine and smooth foam that can disappear, and as snowflake, obtains liking of child very much.Originally this product is do not add any pigment, in order to increase the magnetism of product, manufacturer adds various pigment to obtain more gorgeous color, make product more welcome, but pigment is here also with common pigments, and general color is very lasting, this just causes ejecta and is ejected on clothing, have pigment residual contamination clothing after lather collapse and be difficult to remove, make buyer would rather select the product of white, if so here the pigment that can cannot do not disappear residually is added in face, product can be more welcome.
Summary of the invention
For meeting the application of fine chemistry industry needs noresidue pigment, the present invention proposes phenolphthalein and thymolphthalein replaces the application of pigment in fine chemistry industry, be specially and phenolphthalein and thymolphthalein be applied in some products needing color not need again color residual, not only obtained color experience but also without the need to worrying that color remains bring unhappy.
The technical scheme that the present invention solve the technical problem is, phenolphthalein and thymolphthalein replace the application of pigment in fine chemistry industry.Be specially, get phenolphthalein and thymolphthalein is dissolved in ethanol, then join in the water being dissolved with tensio-active agent and NaOH, and regulate pH of mixed at 9.5-10 with NaOH, then by filling for mixed solution in inhalator jar, seal and be filled with the third butane gas, there is the aerosol snow finished product of the effect that to become colorless from purple.
Compared with prior art, its beneficial effect is in the present invention: utilize phenolphthalein and the colour killing of thymolphthalein in acid, alkali varying environment, develop the color principle, substitute traditional pigment and develop the color lastingly, meet the application scenario only needing transience to develop the color.
Embodiment
It is main below that to phenolphthalein and thymolphthalein replacement pigment, the application in fine chemistry industry is described in further detail in conjunction with specific embodiments.
Phenolphthalein of the present invention and thymolphthalein replace the application of pigment in fine chemistry industry, be specially and get phenolphthalein and thymolphthalein is dissolved in ethanol, then join in the water being dissolved with tensio-active agent and NaOH, and regulate pH of mixed at 9.5-10 with NaOH, then by filling for mixed solution in inhalator jar, seal and be filled with the third butane gas, there is the aerosol snow finished product of the effect that to become colorless from purple.
Phenolphthalein is a kind of weak organic acid, it is colourless lactone structure in the solution of pH < 8.2, when the quinoid structure that 8.2 < pH < 10 are red, and thymolphthalein is blue at 9.3 < pH < 10.6, namely the present invention adopts the colour developing principle of phenolphthalein to carry out alternative pigment, ejecta can absorb the CO2 in air, CO2 generation carbonic acid soluble in water thus react with the weak base generation acid-base neutralisation in solvent, foam color dies down to colourless, reach without the residual effect of any color.The chemical reaction that this process relates to has: (1) CO
2+ H
2o → H
2cO
3;
(2)H
2CO
3+2NaOH→2H
2O+Na
2CO
3；
(3)
The present invention adopts phenolphthalein, thymolphthalein substitutes pigment, in 9.5 < pH < 10 scopes, phenolphthalein indicator is shown in red, thymolphthalein colour developing is for blue, the two mixing application obtains purple, thus does not add pigment and just can obtain gorgeous color.After ejecta stops 1-2min in atmosphere, foam color dies down to colourless, because NaOH addition is little, so can not produce any damage to clothing, can make the relieved use of user.Ethanol evaporation rate is faster than water, can destroy the foam of formation in volatilization process, so ethanol plays the effect of froth breaking at this, and phenolphthalein is insoluble with thymolphthalein or be slightly soluble in water and be soluble in ethanol, so ethanol is also used as solvent here.Adjustment pH value of solution in the scope of 9.5-10, filled with solution is sealed in inhalator jar and is filled with the third butane gas, aerosol snow finished product.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. phenolphthalein and thymolphthalein replace the application of pigment in fine chemistry industry, be specially and get phenolphthalein and thymolphthalein is dissolved in ethanol, then join in the water being dissolved with tensio-active agent and NaOH, and regulate pH of mixed at 9.5-10 with NaOH, then by filling for mixed solution in inhalator jar, seal and be filled with the third butane gas, purple aerosol snow finished product.
2. phenolphthalein according to claim 1 and thymolphthalein replace the application of pigment in fine chemistry industry, and it is characterized in that, described purple aerosol snow finished product has the color changeable effect become colorless from purple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673215.4A CN105199673A (en) | 2015-10-19 | 2015-10-19 | Application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673215.4A CN105199673A (en) | 2015-10-19 | 2015-10-19 | Application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105199673A true CN105199673A (en) | 2015-12-30 |
Family
ID=54947639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510673215.4A Pending CN105199673A (en) | 2015-10-19 | 2015-10-19 | Application of phenolphthalein and thymol phenolphthalein as replacement of pigments in fine chemical engineering |
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| CN (1) | CN105199673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824498A (en) * | 2020-08-05 | 2020-10-27 | 邹帅虎 | Preparation method of polyurethane gap filler |
| CN113698818A (en) * | 2021-09-01 | 2021-11-26 | 嘉力丰科技股份有限公司 | Self-fading wallpaper base film convenient for construction and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444443A (en) * | 2000-04-26 | 2003-09-24 | 约翰逊父子公司 | Mosquito net treatment indicator and method |
| CN101503589A (en) * | 2009-03-03 | 2009-08-12 | 山西大学 | Erasable atroceruleous writing solution |
| CN102172434A (en) * | 2011-01-27 | 2011-09-07 | 山西大学 | Colored hubble-bubble liquid |
| CN102371075A (en) * | 2010-08-24 | 2012-03-14 | 上海复云文化传播有限公司 | Monochromatic color bubble solution capable of fading |
-
2015
- 2015-10-19 CN CN201510673215.4A patent/CN105199673A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444443A (en) * | 2000-04-26 | 2003-09-24 | 约翰逊父子公司 | Mosquito net treatment indicator and method |
| CN101503589A (en) * | 2009-03-03 | 2009-08-12 | 山西大学 | Erasable atroceruleous writing solution |
| CN102371075A (en) * | 2010-08-24 | 2012-03-14 | 上海复云文化传播有限公司 | Monochromatic color bubble solution capable of fading |
| CN102172434A (en) * | 2011-01-27 | 2011-09-07 | 山西大学 | Colored hubble-bubble liquid |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824498A (en) * | 2020-08-05 | 2020-10-27 | 邹帅虎 | Preparation method of polyurethane gap filler |
| CN111824498B (en) * | 2020-08-05 | 2021-12-14 | 河南蓝翎环科防水材料有限公司 | Preparation method of polyurethane gap filler |
| CN113698818A (en) * | 2021-09-01 | 2021-11-26 | 嘉力丰科技股份有限公司 | Self-fading wallpaper base film convenient for construction and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |