Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of stabilizing sodium hypochlorite solution

A sodium hypochlorite solution, stable technology, applied in the direction of hypochlorous acid, hypochlorite, alkali metal chloride, etc., to achieve the effects of small side effects, stability and effective storage period extension, and alkali reduction

Inactive Publication Date: 2005-03-23
SHANDONG UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sodium chlorate products that produce in the prior art, its storage and use condition mostly are under the environment of high pH value (pH>12), cause the sodium hypochlorite solution to have certain limitation when using like this, this is also raising sodium hypochlorite at present. Issues to be Considered and Solved Urgently in the Study of Solution Stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare a sodium hypochlorite solution with a content of about 0.60% (wt), adjust the pH ≈ 9.90 (measured by a pH meter) with sodium dihydrogen phosphate, and then add phenanthroline (concentration about 30ppm) accounting for 3 / 100,000 of the total amount. Seal and stir for 12 hours until fully dissolved to obtain the sodium hypochlorite solution, which is filled in an opaque, light-proof plastic bottle by a constant-pressure sealed filling process, and sealed for storage. According to the test, at 20°C, its t0.9 is about 780 days.

Embodiment 2

[0033] Prepare a sodium hypochlorite solution with a content of about 0.60% (wt), adjust the pH to 9.10 (measured by a pH meter) with sodium dihydrogen phosphate, and then add phenanthroline (concentration about 30ppm) accounting for 3 / 100,000 of the total amount, at 40°C Seal and stir for 12 hours until fully dissolved to obtain the sodium hypochlorite solution, which is filled in an opaque, light-proof plastic bottle by a constant-pressure sealed filling process, and sealed for storage. According to the test, at 20°C, its t0.9 is about 640 days.

[0034] Below with above-mentioned identical preparation method, carry out t0.9 comparison to the sodium hypochlorite solution prepared under conditions such as different protective agents, different concentrations, different storage temperatures, different pH values, the effect of the inventive method is further illustrated.

[0035] Protective agent

[0036] Protective agent

[0037] Protective age...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process for stabilizing the solution of sodium hypochlorite includes such steps as regulating pH value of said solution, adding 8-hydroxy quinoline, and stirring in sealed condition.

Description

technical field [0001] The invention relates to a method for stabilizing sodium hypochlorite solution, in particular to a method for effectively stabilizing sodium hypochlorite solution under the condition of pH≤10. Background technique [0002] Sodium hypochlorite is a strong oxidizer, bleach, disinfectant and deodorant. It is mainly used for the bleaching of pulp and fabrics; the treatment of upper and lower water, the disinfection and sterilization of hospitals, restaurants, hotels and households; it is also used as raw materials for chemicals and medicines, as well as organic synthesis and dye intermediates. Sodium hypochlorite is widely used and has various product specifications. However, due to its unstable performance and easy decomposition, it has caused many difficulties in production, storage and use. For this reason, how to improve the stability of sodium hypochlorite becomes the important subject that this product manufacturer must pay attention to and should ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/06C01D3/04
Inventor 郝爱友郑大兴
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com