Reaction of dish soap and bleach

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Discussion Overview

The discussion revolves around the chemical reaction that occurs when mixing dish soap with chlorine bleach during the cleaning of a hamster cage. Participants explore the nature of the reaction, the resulting changes in color and suds, and the potential implications of mixing these substances, focusing on both chemical properties and safety concerns.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant describes observing a color change from orange to white when dish soap was added to bleach, followed by an increase in suds when water was introduced.
  • Another participant notes that dishwashing detergents typically do not contain soap but rather other detergent materials, raising concerns about potential reactions with bleach, particularly if ammonium compounds are present.
  • A third participant mentions that chlorine can attack the conjugated bond systems in organic dyes, which may explain the loss of color observed.
  • It is pointed out that bleach is a strong solution of NaOH, and the high pH may influence both the color changes and the stability of suds produced.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the chemical interactions involved, with some highlighting safety concerns and others focusing on the chemical properties of the substances. No consensus is reached regarding the specific reactions or products formed from the mixture.

Contextual Notes

Participants acknowledge the complexity of dish soaps and the potential for toxic reactions when mixing bleach with certain cleaning agents. There are also mentions of unresolved details regarding the specific chemical products resulting from these interactions.

Who May Find This Useful

This discussion may be of interest to individuals exploring chemical reactions in household cleaning products, safety considerations in mixing chemicals, and the properties of detergents and bleaches.

pnorm91
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today I was cleaning out my fiances hamster cage, we had a hamster in there before, and long story short, we had to return for what appeared to be an illness. So, needless to say, I wanted to clean it really well. I first rinsed it with water, then dumped out the water, poured in some chlorine-bleach, and added some dish soap. the part I'm interested in is the reaction it created, and the resounding lack of information on the web. The best thing I could deduce is that the sulfates are chemically separated, but given my fairly limited knowledge of chemistry, that's the best I could come up with. The interesting thing about this reaction was that when the soap was poured into the bleach, it changed from it's orange color to to a white. then when water was added, the suds went crazy. there was a lot more suds that resulted from this reaction than water and soap alone. I know this was lengthy, but I'm really interested to see what the answer is, thanks!
 
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pnorm91 mentioned

poured in some chlorine-bleach, and added some dish soap.

Formulas designed for cleaning dishes will not typically contain any soap. They will have other detergent materials and ingredients intended for stability and processing but NO SOAP.

Mixing cleaning formulas with residue from chlorine bleach can be a bad idea. Dishwashing detergents may often contain ammonium compounds (having ammonium cation) which could react with hypochlorite; I don't right now know what the products would be to this reaction, but they may be toxic. Also, if sufficient residue from the hypochlorite solution were still present, by its being alkaline, your adding liquid dishwashing detergent containing possibly an ammonium compound may release ammonia, but you would likely smell this.
 
Dish soaps are sometimes quite complicated mixtures. Loss of color is the easiest part - chlorine easily attacks conjugated bond systems that are responsible for color of many organic dyes.
 
Don't forget that bleach is a fairly strong solution of NaOH. pH can affect color as well. The high pH you've added with the bleach can also behave as a detergent builder which stabilizes suds and foam.
 

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