Stabilizer for trichloroethylene

A technology of trichloroethylene and stabilizer, which is used in the long-term storage field of electronic cleaning grade trichloroethylene, can solve the problems of damage and corrosion of components, and achieve the effect of reducing the decomposition speed, meeting the quality requirements and prolonging the use time.

Inactive Publication Date: 2013-01-02
江苏省格林艾普化工股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The domestic stabilizer used for trichlorethylene is usually a single organic base added to increase the pH value of the material, but it can only last for about 30 days, which is far behind the advanced level abroad. At the s

Method used

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  • Stabilizer for trichloroethylene

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Embodiment 1

[0013] Embodiment 1: a stabilizer for trichlorethylene, its component content is: triethanolamine 80ml / t, diisopropane 100ml / t, thymol 90ml / t, epichlorohydrin 100ml / t, isobutanol 100ml / t, the above content is calculated based on the mass of trichlorethylene.

Embodiment 2

[0014] Embodiment 2: a stabilizer for trichlorethylene, its component content is: triethanolamine 90ml / t, diisopropane 90ml / t, isobutanol 110ml / t, diethylene glycol ether 80ml / t, the above content All are calculated based on the mass of trichlorethylene.

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Abstract

The invention discloses a stabilizer for trichloroethylene. The stabilizer consists of an organic base, an antioxidant and an organic solvent, wherein the organic base is triethanolamine; the antioxidant is 2-isopropane, thymol and epichlorohydrin; and the organic solvent is isobutanol and diethylene glycol. The stabilizer disclosed by the invention has the following advantages: the composite stabilizer formulation is used for stabilizing trichloroethylene and ensuring that trichloroethylene does not deteriorate within 180 days, and simultaneously, the decomposition speed of trichloroethylene in a use process is reduced, and the use time is greatly prolonged. By utilizing the stabilizer, trichloroethylene can meet the requirement of the top-grade electronic cleaning industry on trichloroethylene quality, cannot damage and erode cleaned components and achieves the purpose of replacing imported trichloroethylene.

Description

technical field [0001] The invention relates to a stabilizer for trichlorethylene, which is suitable for long-term storage of trichlorethylene, in particular for long-term storage of electronic cleaning grade trichlorethylene. Background technique [0002] Trichloroethylene, a colorless transparent liquid with the smell of chloroform. Melting point: -87.1°C, boiling point: 87.1°C, relative density (water=1): 1.46, relative vapor density (air=1): 4.53. When exposed to fire or high heat, it can cause combustion and explosion. When it comes in contact with strong oxidants, it can undergo a chemical reaction. When exposed to light or in the presence of water or air, it will decompose and produce toxic phosgene and corrosive hydrogen chloride. Insoluble in water, soluble in ethanol, ether, miscible in toluene, acetone and most organic solvents. [0003] Trichlorethylene is the strongest solvent among C2 organochlorine solvents. It is the best metal degreasing lotion. It is main...

Claims

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Application Information

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IPC IPC(8): C07C21/10C07C17/42
Inventor 陈海云许志杰胡建伟季静花
Owner 江苏省格林艾普化工股份有限公司
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