JPH01164701A - Method for stabilizing aqueous sodium hypochlorite solution - Google Patents
Method for stabilizing aqueous sodium hypochlorite solutionInfo
- Publication number
- JPH01164701A JPH01164701A JP32223087A JP32223087A JPH01164701A JP H01164701 A JPH01164701 A JP H01164701A JP 32223087 A JP32223087 A JP 32223087A JP 32223087 A JP32223087 A JP 32223087A JP H01164701 A JPH01164701 A JP H01164701A
- Authority
- JP
- Japan
- Prior art keywords
- bromide
- sodium hypochlorite
- soln
- added
- aqueous sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 18
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 6
- 230000000087 stabilizing effect Effects 0.000 title claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims abstract description 14
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 abstract description 5
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 abstract description 4
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract description 2
- 239000004094 surface-active agent Substances 0.000 abstract description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 abstract 2
- 239000002304 perfume Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 8
- 230000001954 sterilising effect Effects 0.000 description 5
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- -1 helium hypochlorite Chemical compound 0.000 description 1
- KQPBSBAEBKRAAU-UHFFFAOYSA-N hypochlorous acid;sodium Chemical compound [Na].ClO KQPBSBAEBKRAAU-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/068—Stabilisation by additives other than oxides, hydroxides, carbonates of alkali or alkaline-earth metals; Coating of particles; Shaping; Granulation
Abstract
Description
【発明の詳細な説明】
本発明は次亜塩素酸ナトリウム水溶液の安定化法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for stabilizing an aqueous solution of sodium hypochlorite.
次亜塩素酸す１ヘリウム水溶液は紙パルプの漂白、食品
の殺菌、上下水道の殺菌、消毒、住宅、工場の殺菌、消
毒カビ除去、産業排水処理等広範囲に使用されている。An aqueous solution of helium hypochlorite is used in a wide range of applications, including bleaching paper pulp, sterilizing food, sterilizing and disinfecting water and sewage systems, sterilizing homes and factories, removing disinfectant mold, and treating industrial wastewater.
しかし、品質の不安定さ、つまり次亜塩素酸ナトリウム
の分解による濃度低下が著しく、従来よりこの改善が強
く望まれていた。分解は光や熱、微量の有機物、金属イ
オンにより促進される。However, the quality is unstable, that is, the concentration decreases significantly due to the decomposition of sodium hypochlorite, and there has been a strong desire to improve this. Decomposition is accelerated by light, heat, trace amounts of organic matter, and metal ions.
そこで可能なかぎり不純物を除去し、冷暗所に貯蔵する
方法がとられて来た。Therefore, methods have been adopted to remove impurities as much as possible and store it in a cool, dark place.
しかし不充分なので通常は水酸化ナトリウムを添加して
安定化を計っている。この方法は使用に際し添加した水
酸化ナトリウムが紙パルプや食品に対し悪影響をおよぼ
し、上下水道の殺菌消毒、住宅、工場の殺菌、カビ除去
、産業排水処理等ではその処理効果がそこなわれるとい
う欠点を有している。However, since it is insufficient, sodium hydroxide is usually added to stabilize it. The disadvantage of this method is that the sodium hydroxide added during use has a negative effect on paper pulp and food, and the treatment effect is impaired in water supply and sewage sterilization, sterilization of houses and factories, mold removal, industrial wastewater treatment, etc. have.
我々は種々検討の結果、少量の臭化物を添加する事によ
り分解を防ぎ、しかも使用に際し何ら不都合のない安定
化された次亜塩素酸ナトリウム水溶液が得られることを
見出し、本発明を完成させたものである。As a result of various studies, we have discovered that by adding a small amount of bromide, it is possible to prevent decomposition and obtain a stabilized aqueous sodium hypochlorite solution that does not cause any inconvenience during use, and has completed the present invention. It is.
臭化物としては、臭化す１〜リウム、臭化カリウム、臭
化リチウム、臭化水素酸などがあげられる。Examples of the bromide include mono-lithium bromide, potassium bromide, lithium bromide, and hydrobromic acid.
添加量は溶液中の次亜塩素酸ナトリウムに対し、２％〜
１００％、のぞましくは、２％〜５０％加えるのが良い
。添加方法は臭化物の結晶を直接加えてもその水溶液と
して添加してもどちらでも良い。又、香料や界面活性剤
等の他の添加剤と共に加えても何ら支障はない。The amount added is 2% to sodium hypochlorite in the solution.
It is good to add 100%, preferably 2% to 50%. The addition method may be either by directly adding bromide crystals or by adding them as an aqueous solution. Moreover, there is no problem in adding it together with other additives such as fragrances and surfactants.
以下実施例をもって本発明を説明する。The present invention will be explained below with reference to Examples.
実施例１
次亜塩素酸ナトリウム１２．０％、水酸化ナトリウム０
．７５％、食塩３．５％を含む市販の工業用次亜塩素酸
ナトリウム水溶液を水道水で３倍に稀釈し臭化物を所定
量加え、蓋付の褐色ビンに入れ４０±１℃の恒温槽に静
置した。Example 1 Sodium hypochlorite 12.0%, sodium hydroxide 0
．． A commercially available industrial sodium hypochlorite aqueous solution containing 75% salt and 3.5% salt was diluted 3 times with tap water, a specified amount of bromide was added, and the mixture was placed in a brown bottle with a lid and placed in a constant temperature bath at 40±1°C. I left it still.
一定時間毎サンプリングし、ヨウ素滴定法により次亜塩
素酸ナトリウムの濃度を測定し分解率を求めた。Samples were taken at regular intervals, and the concentration of sodium hypochlorite was measured by iodometric titration to determine the decomposition rate.
−Ｂ
分解率（％）＝−□Ｘ１００
Ａ、最初の次亜塩素酸ナトリウムの濃度Ｂ、一定時間後
の次亜塩素酸ナトリウムの濃度得られた結果を表１に示
す。-B Decomposition rate (%) = -□X100 A, initial concentration of sodium hypochlorite B, concentration of sodium hypochlorite after a certain time The obtained results are shown in Table 1.
実施例２
市販の次亜塩素酸ナトリウム水溶液１２．０％、水酸化
ナトリウム０．７５％、食塩３．５％を含む市販の工業
用次亜塩素酸す１−リウム水溶液を稀釈せず臭化物を所
定量添加する他は実施例１とまったく同様の操作を行な
って安定度を測定した。Example 2 A commercially available industrial 1-lium hypochlorite aqueous solution containing 12.0% sodium hypochlorite aqueous solution, 0.75% sodium hydroxide, and 3.5% common salt was extracted with bromide without diluting it. The stability was measured by performing exactly the same operation as in Example 1 except that a predetermined amount was added.
得られた結果を表２に示す。The results obtained are shown in Table 2.
少量の臭化物を添加する事で安定な次亜塩素酸水素ナト
リウム水溶液が得られる事が判った。It was found that a stable aqueous solution of sodium hydrogen hypochlorite could be obtained by adding a small amount of bromide.
次亜塩素酸ナトリウム濃度１２％の水溶液の場合も少量
の臭化物の添加で安定な次亜塩素酸ナトリウム水溶液が
得られることが判った。It has been found that even in the case of an aqueous solution with a sodium hypochlorite concentration of 12%, a stable aqueous sodium hypochlorite solution can be obtained by adding a small amount of bromide.
Claims (1)
水溶液の安定化法Method for stabilizing aqueous sodium hypochlorite solution characterized by adding bromide
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32223087A JPH01164701A (en) | 1987-12-18 | 1987-12-18 | Method for stabilizing aqueous sodium hypochlorite solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32223087A JPH01164701A (en) | 1987-12-18 | 1987-12-18 | Method for stabilizing aqueous sodium hypochlorite solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01164701A true JPH01164701A (en) | 1989-06-28 |
Family
ID=18141382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32223087A Pending JPH01164701A (en) | 1987-12-18 | 1987-12-18 | Method for stabilizing aqueous sodium hypochlorite solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01164701A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423014A2 (en) * | 1989-10-10 | 1991-04-17 | Colgate-Palmolive Company | Nonaqueous liquid automatic dishwasher detergent composition containing a dual bleach system |
| US5154550A (en) * | 1990-02-20 | 1992-10-13 | Sumitomo Electric Industries, Ltd. | Throw-away tipped drill bit |
| US5229027A (en) * | 1991-03-20 | 1993-07-20 | Colgate-Palmolive Company | Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and an iodate or iodide hypochlorite bleach stabilizer |
| WO1997043392A1 (en) * | 1996-05-15 | 1997-11-20 | The Procter & Gamble Company | Process for manufacturing bleaching compositions comprising chlorine and bromine sources and product thereof |
| JP2009263161A (en) * | 2008-04-24 | 2009-11-12 | Wide Harbor:Kk | Method for preserving sodium hypochlorite solution to be added to city water, and apparatus therefor |
-
1987
- 1987-12-18 JP JP32223087A patent/JPH01164701A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423014A2 (en) * | 1989-10-10 | 1991-04-17 | Colgate-Palmolive Company | Nonaqueous liquid automatic dishwasher detergent composition containing a dual bleach system |
| US5154550A (en) * | 1990-02-20 | 1992-10-13 | Sumitomo Electric Industries, Ltd. | Throw-away tipped drill bit |
| US5229027A (en) * | 1991-03-20 | 1993-07-20 | Colgate-Palmolive Company | Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and an iodate or iodide hypochlorite bleach stabilizer |
| WO1997043392A1 (en) * | 1996-05-15 | 1997-11-20 | The Procter & Gamble Company | Process for manufacturing bleaching compositions comprising chlorine and bromine sources and product thereof |
| JP2009263161A (en) * | 2008-04-24 | 2009-11-12 | Wide Harbor:Kk | Method for preserving sodium hypochlorite solution to be added to city water, and apparatus therefor |
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