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Stabilizing agent for sodium hypochlorite and usage method thereof

A technology of sodium hypochlorite and sodium hypochlorite solution, which is applied in the direction of botany equipment and methods, applications, biocides, etc., can solve the problem that sodium hypochlorite solution is difficult to reach a validity period of 6 months, and achieve the purpose of prolonging storage time, inhibiting catalytic decomposition, and avoiding decomposition Effect

Inactive Publication Date: 2016-09-28
SUZHOU BOYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing stabilizers can improve the stability of sodium hypochlorite solution to a certain extent, but do not fundamentally change the law of spontaneous decomposition reaction of sodium hypochlorite solution, and it is difficult for sodium hypochlorite solution to reach a validity period of 6 months

Method used

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  • Stabilizing agent for sodium hypochlorite and usage method thereof
  • Stabilizing agent for sodium hypochlorite and usage method thereof
  • Stabilizing agent for sodium hypochlorite and usage method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare stabilizer according to sodium sulfamate: sodium silicate: sodium bicarbonate: water weight ratio 5:1:1:93, then dissolve stabilizer and equal weight 10wt% sodium hypochlorite solution to obtain concentration of about 5wt% sodium hypochlorite solution.

Embodiment 2-6

[0019] Repeat the method of Experimental Example 1 according to the mass percentage of each component specified in Table 1 to obtain sodium hypochlorite solutions with different concentrations of about 5 wt%.

[0020] Table 1:

[0021]

[0022] The nitrogen atom in sodium sulfamate in the stabilizer component has a valence of +3 and is in a strong state of donating electrons in the solution; while the chlorine atom in sodium hypochlorite has a valence of +3 and is in a state of strongly accepting electrons in the solution State, so these two substances will form a relatively stable molecular group under the covalent action, thereby inhibiting the spontaneous decomposition of sodium hypochlorite, effectively improving the stability of sodium hypochlorite; the sodium silicate in the component can absorb heavy metal impurity ions, inhibit heavy metal The catalytic decomposition of sodium hypochlorite by ions can also improve the stability of the solution to a certain extent; s...

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Abstract

The invention belongs to the field of chemical preparation technology, and relates to a stabilizing agent for sodium hypochlorite and a usage method thereof. The stabilizing agent for sodium hypochlorite comprises the following components: 5-15wt% of sodium sulfamate, 0.6-1.5wt% of sodium silicate, 1-3wt% of sodium bicarbonate, and the balance being deionized water; the usage method of the stabilizing agent for sodium hypochlorite comprises the following steps: the stabilizing agent for sodium hypochlorite and a 10wt% sodium hypochlorite solution are mixed according to a mass ratio 1:1, after stirring, filtering is carried out. The stabilizing agent ensures that sodium hypochlorite is difficult to decompose in a hot environment, preservation time is substantially prolonged, and preservation time at normal temperature even reaches 12 months or above.

Description

technical field [0001] The invention relates to the technical field of chemical preparations, in particular to a stabilizer for sodium hypochlorite and a use method thereof. Background technique [0002] Sodium hypochlorite solution itself has poor stability, and the actual validity period of commercially available sodium hypochlorite solution is only 3 months, while the "Technical Specifications for Hygienic Quality of Sodium Hypochlorite Disinfectants" requires its validity period to be more than 6 months, and users expect its validity period to reach 12 months . At home and abroad, the research and development of stable sodium hypochlorite solution is very important, and nearly 100 patents and papers on stable sodium hypochlorite solution formulations, preparation methods, and papers have been published. In the literature, sodium phosphate, sodium silicate and surfactants are generally used to improve its stability. Existing stabilizer can improve the stability of sodiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N59/00A01P1/00
CPCA01N25/22A01N59/00
Inventor 严增源
Owner SUZHOU BOYANG CHEM
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