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Cleaning agent for removing impurities on surface of gold ornament as well as preparation method and application of cleaning agent

A cleaning agent and a technology for gold ornaments, applied in the field of cleaning agents for removing impurities on the surface of gold ornaments and their preparation, which can solve the problems of affecting the color of gold and prone to oxidation, so as to ensure neatness and smoothness, promote normal progress, and improve The effect of the decontamination effect

Pending Publication Date: 2022-05-10
深圳市金安盛首饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the applicant believes that during the process of beating, grinding and polishing, there will be impurities mainly composed of metallic copper adsorbed on the surface of gold, and copper is prone to oxidation in the air, forming copper oxide adsorbed on the surface of gold, affecting the gold surface. color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0040] A cleaning agent for removing impurities on the surface of gold ornaments, the preparation method of which is:

[0041] Weigh citric acid according to the ratio of raw materials in Table 1, slowly add hydrochloric acid to citric acid and mix evenly, then add phosphoric acid and sodium sulfate in turn and mix evenly, finally add sulfuric acid slowly to the aforementioned mixed solution, stir evenly to obtain cleaning agent.

[0042] Table 1 Example 1-5 raw material ratio table

[0043] Sulfuric acid / ml Sodium sulfate / g Citric acid / g Hydrochloric acid / ml Phosphoric acid / ml Example 1 200 5 27 10 25 Example 2 200 6 26 12 23 Example 3 200 7 25 15 20 Example 4 200 8 25 17 18 Example 5 200 9 23 20 15

[0044] Wherein, the mass percentage concentration of sulfuric acid is 75%, the mass percentage concentration of hydrochloric acid is 37%, the mass percentage concentration of phosphoric acid is 30%, and so...

Embodiment 6-9

[0046] The difference from Example 3 is that the concentrations of sulfuric acid, hydrochloric acid, and phosphoric acid in Examples 6-9 are shown in Table 2 for details.

[0047] Table 2 Example 3 and Example 6-9 Inorganic acid mass percentage concentration ratio table (%)

[0048] sulfuric acid hydrochloric acid phosphoric acid Example 3 75 37 25 Example 6 78 37 30 Example 7 80 35 35 Example 8 82 34 38 Example 9 85 30 40

Embodiment 10

[0050] Different from Example 7, anhydrous sodium sulfate was replaced with an equivalent amount of crystalline sodium sulfate in Example 10.

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Abstract

The invention relates to the technical field of gold jewelry processing, and particularly discloses a cleaning agent for removing impurities on the surface of a gold ornament and a preparation method and application of the cleaning agent. The invention discloses a cleaning agent for removing impurities on the surface of a gold ornament. The cleaning agent comprises the following raw materials: sulfuric acid, sodium sulfate, citric acid, hydrochloric acid and phosphoric acid. The mass percentage concentration of the sulfuric acid is 75-85%, the mass percentage concentration of the hydrochloric acid is 30-37%, and the mass percentage concentration of the phosphoric acid is 25-40%; the ratio of the raw materials is as follows: 5-9g of sodium sulfate, 23-27g of citric acid, 10-20ml of hydrochloric acid and 15-25ml of phosphoric acid are added into every 200ml of sulfuric acid in sequence; the preparation method comprises the following steps: sequentially adding and mixing the citric acid, the hydrochloric acid, the phosphoric acid, the sodium sulfate and the sulfuric acid to obtain the cleaning agent. The cleaning agent is used for impurity removal and cleaning of the surfaces of the gold ornaments, copper oxide impurities on the surfaces of the gold ornaments can be effectively removed, the gold color and luster of the gold ornaments are guaranteed, and the hardness of the gold ornaments cannot be reduced.

Description

technical field [0001] The application relates to the technical field of gold jewelry processing, more specifically, it relates to a cleaning agent for removing impurities on the surface of gold jewelry, its preparation method and application. Background technique [0002] Gold jewelry is becoming more and more popular and sought after by people in the jewelry industry. With people's pursuit of art and the prevalence of "retro" trends, ancient gold jewelry accounts for an increasing proportion of the market. [0003] Ancient gold is made of ancient gold, which is to create current gold products and jewelry according to the skills and techniques of ancient craftsmen. At the same time, it can not be completely retro, but also innovative. At the same time, it contains cultural and classical elements. Cultural charm. Ancient gold needs to be hammered, ground and polished in the production process. [0004] In view of the above-mentioned related technologies, the applicant beli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/10
CPCC23G1/10
Inventor 王松孙家杭
Owner 深圳市金安盛首饰有限公司
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