SU1479409A1 - Method of removing grease films and acidic contaminants from glass articles - Google Patents

Abstract

The invention relates to chemistry, medicine, the perfumery and canning industry, in particular to methods of cleaning glass products, and can be used to clean dishes. The aim of the invention is the elimination of environmental pollution with carcinogenic substances and an increase in the efficiency of chemical cleaning of the glass surface. The goal is achieved by chemical treatment of the glass surface in the case of the presence of fatty films and contaminants of an acidic nature with an aqueous solution of sodium or potassium adipitan (30-40 g / l) with hydrogen peroxide (10-15%) in a ratio of 3: 1, then incubated, washed with clean water. 1 tab.

Description

The invention relates to chemistry, medicine, the perfumery and canning industry, in particular to methods of cleaning glass products, and can be used to clean dishes.

The aim of the invention is the elimination of environmental pollution with carcinogenic substances and an increase in the cleaning efficiency of glass products.

The method is carried out as follows.

A washing solution is prepared, which is a mixture of 10–15% aqueous hydrogen peroxide solution and an aqueous solution of sodium or potassium adipinate with a concentration of 30–40 g / l, taken in a 1: 3 ratio.

The washing solution is filled in the dishes and allowed to stand for several minutes.

The washing solution is removed from the surface of the dish by rinsing with a clean

water

Example 1. The surface of the ampoules is covered with fat films. To remove them, the ampoules are placed in a mixture of an aqueous solution of sodium adipate (40 g / l) and a 15% aqueous solution of hydrogen peroxide, taken in a 3: 1 ratio, kept for several minutes and washed with pure water.

Example 2. The surface of the flask is contaminated with deposits of acidic nature. Removal of contaminants is carried out by treating the surface of the flask with a mixture of an aqueous solution of sodium adipate (35 g / l) and a 15% aqueous solution of hydrogen peroxide, taken in a ratio of 3-1. After cleaning, the flask is rinsed with clean water.

-U vj

with

Ј ABOUT

314

Table 1 shows the change in the cleaning time of glass products depending on the concentration of sodium adipate when mixed with a 10-15% aqueous solution of hydrogen peroxide in a ratio of 3: 1.

Table 2 shows the change in the cleaning time of glass products depending on the ratio of the solutions to be drained using a 40 g / l sodium adipate stock solution.

 When processing glass products contaminated with acidic deposits and oily films, the proposed method occurs saponification and complexation.

Ecologically, sodium adipinate and 10–15% aqueous hydrogen peroxide solution are not dangerous. They do not adsorb to the glass surface.

0

0

and do not grind organic contaminants.

Claims (1)

The proposed method makes it possible to eliminate environmental pollution with carcinogenic substances and to increase the cleaning efficiency of glass products. Invention Formula The method of cleaning glass products from oily films and contaminants of an acidic nature, including treatment in a washing solution and rinsing with water, characterized in that, in order to avoid contamination of the environment with carcinogenic substances and increase cleaning efficiency, a mixture of 10-15 is used as a washing solution. A% aqueous solution of hydrogen peroxide and an aqueous solution of sodium or potassium adipinate with a concentration of 30-40 g / l, taken in a 1: 3 ratio. Table 1 Cleaning time, min 20 15 Dish cleaning time, min 13 ten ten table 2 thirty 20 ten ten