Preparation method for color-changing scale washing agent
A cleaning agent and scale technology, which is applied in the field of preparation of discoloration scale cleaning agent, can solve the problems of environmental pollution and strong corrosion, and achieve the effect of less corrosion of equipment, strong cleaning ability and simple operation
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Embodiment 1
[0017] (1) Preparation of hydrochloric acid, ammonium chloride, disodium edetate, and benzotriazole form a mixed solution, wherein the mass concentration of hydrochloric acid is 7%, the mass concentration of ammonium chloride is 1.2%, and ethylenediamine The mass concentration of disodium tetraacetate is 0.02%, and the mass concentration of benzotriazole is 0.01%;
[0018] (2) Prepare a neutral red-methylene blue mixed solution, which is composed of 0.1% neutral red ethanol solution and 0.1% methylene blue ethanol solution in a ratio of 1:1 by volume;
[0019] (3) Mix the solution obtained in step (1) with the solution obtained in step (2) at a volume ratio of 10000:6, and the resulting mixed solution is the discoloration scale cleaning agent.
[0020] This cleaning agent reacts with calcium carbonate, until the cleaning agent changes from purple to gray-green, the amount of calcium carbonate dissolved in the cleaning agent is measured to be 100g / L. The sustained release rate...
Embodiment 2
[0022] (1) Preparation of hydrochloric acid, ammonium chloride, EDTA disodium salt, and benzotriazole form a mixed solution, wherein the mass concentration of hydrochloric acid is 8%, the mass concentration of ammonium chloride is 1.2%, and ethylenediamine The mass concentration of disodium tetraacetate is 0.02%, and the mass concentration of benzotriazole is 0.01%;
[0023] (2) Prepare a neutral red-methylene blue mixed solution, which is composed of 0.1% neutral red ethanol solution and 0.1% methylene blue ethanol solution in a ratio of 1:1 by volume;
[0024] (3) Mix the solution obtained in step (1) with the solution obtained in step (2) at a volume ratio of 10000:6, and the resulting mixed solution is the discoloration scale cleaning agent.
[0025] This cleaning agent reacts with calcium carbonate, until the cleaning agent turns gray-green from purple, the amount of cleaning agent dissolving calcium carbonate recorded is 120g / L. The sustained release rate of the cleanin...
Embodiment 3
[0027] (1) Preparation of hydrochloric acid, ammonium chloride, disodium edetate, and benzotriazole form a mixed solution, wherein the mass concentration of hydrochloric acid is 7%, the mass concentration of ammonium chloride is 1.5%, and ethylenediamine The mass concentration of disodium tetraacetate is 0.02%, and the mass concentration of benzotriazole is 0.01%;
[0028] (2) Prepare a neutral red-methylene blue mixed solution, which is composed of 0.1% neutral red ethanol solution and 0.1% methylene blue ethanol solution in a ratio of 1:1 by volume;
[0029] (3) Mix the solution obtained in step (1) with the solution obtained in step (2) at a volume ratio of 10000:6, and the resulting mixed solution is the discoloration scale cleaning agent.
[0030] This cleaning agent reacts with calcium carbonate, until the cleaning agent changes from purple to gray-green, the amount of calcium carbonate dissolved in the cleaning agent is measured to be 100g / L. The sustained release rate...
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