Talk:Bleach

So much space for environmental issues and no mention of toxicity and health risks? — Preceding unsigned comment added by 91.49.252.69 (talk) 03:45, 10 August 2011 (UTC)

This edit discussed the environmental effect of elemental chlorine. I've removed it because elemental chlorine isn't used as a bleach per se, but I see that the article does contain a section "Chlorine Effects on Human Health". Does this need to be trimmed as well? --

Today I changed the Chemistry section from

"The process of bleaching can be summarized in the following set of chemical reactions:.."

to its present version

"The active ingredient in bleach, hypochorite ion, is produced by the following set of chemical reactions:.."

Rationale: The process of bleaching is not the chemistry of hypochorite ion formation per se, but rather the process by which hypochlorite ion bleaches chromophores.

Lawrence Chemistry (talk) 19:05, 10 October 2011 (UTC)

"these products usually contain hypochlorite, which releases chlorine when needed." The phrase "when needed" was uninformative. A more scientific explanation of the "release" conditions might improve the article. Lacking that myself, I dropped the unexplained phrase. LoneStarNot (talk) 15:50, 9 July 2022 (UTC)

The recommendation of treating water with 8 drops per gallon for 15 minutes does not match the recommendations I see from several government emergency management sites, and while it may be adequate for many situations, it can result in insufficiently treated water. The statement about further concentrations being no more effective and toxic is misleading, as it depends on how much bleach is consumed in treatment. The most significant issue is with contact time, 15 minutes is not long enough unless the water is relatively warm. Very cold, highly suspect water may require 4 times as much bleach and contact time.

As this can have serious health ramifications, the recommendations presented need to be more thoroughly researched and documented. Bcworkz (talk) 16:44, 25 December 2011 (UTC)

OK, I researched several resources and aggregated the recommendations for water treatment. I renamed the section to better represent the main content. The citation placed after the statement about further concentrations being no more effective and being toxic does not relate to the statement, so I moved the citation to the paragraph related to disinfecting surfaces, for which it does relate. I rephrased the statement to be less sensational. I also added text to indicate determining proper dilution levels is not that simple, and that boiling is preferred to bleach for treating water.75.174.186.30 (talk) 21:59, 3 January 2012 (UTC)

Why does chloride of lime redirect here, with no further explanation in the body of the article? I'm assuming it's some variety of bleaching agent, but I'm thinking it's more likely a calcium based one, although old names for various substances could be inexact. I am always sorely vexed when redirects like this happen with no reference to them in the body. I am hoping whoever set that redirect up can put something into the article to explain it. — Preceding unsigned comment added by 173.238.212.29 (talk) 13:34, 19 January 2012 (UTC)

As far as I can determine, chloride of lime is not a generic term for bleach, and may refer more directly to http://en.wikipedia.org/wiki/Calcium_hypochlorite but I'm just having to intuit that right now... — Preceding unsigned comment added by 173.238.212.29 (talk) 13:45, 19 January 2012 (UTC)

Calcium hypochlorite is chloride of lime. This is a simple thing to add to an article in the relevant location, e.g.: "Calcium hypochlorite, also known as chloride of lime..." etc. If you don't see it yourself and you know the answer, you are always welcome to edit an article to include such uncontroversial information. But you are correct when you say that there should be a mention of chloride of lime somewhere— whoever made the redirect did it poorly and not in accordance with Wikipedia's style guidelines. KDS4444^Talk 14:33, 31 August 2013 (UTC)

So sodium hypochlorite breaks down gradually in water (and all non-hazardous forms are sold as a solution in water), but there's no reference for how long household bleach maintains its effectiveness.
~ender 2012-05-26 10:17:AM MST — Preceding unsigned comment added by 98.165.52.42 (talk)

"Bleach, particularly sodium hypochlorite, has been shown to react with a microbe's heat shock proteins, stimulating their role as intra-cellular chaperone and causing the bacteria to form into clumps (much like an egg that has been boiled) that will eventually die off.[8]"

This wording makes it seem like the heat shock proteins cause this clumping, which it does not. It actually provides protections from low levels of sodium hypochlorite according to the article it cites. I suggest it gives a brief overview and instead links to the more in depth explanation in Hypochlorous acid. — Preceding unsigned comment added by 72.178.146.12 (talk) 01:28, 10 September 2012 (UTC)

there's nothing about toxicity here, particularly in relation to the concentrations of bleach / hypochlorite used in water treatment and decontamination of animal feedstuffs (bleaching powder). — Preceding unsigned comment added by 86.140.128.118 (talk) 07:42, 12 October 2012 (UTC)

The bottom half of the chemial interactions section is totally unsourced and feels like it's been written very quickly. Perhaps the whole "chemical interactions" section should be moved to the hypochlorite page? Sp3hybrid (talk) 07:24, 5 June 2013 (UTC)

So bleach doesn't actually clean things then, it just disinfects them and hides the dirt? Or is there some process not mentioned whereby it helps marks and contamination to decompose and wash off? This is a generally held belief, and needs to be dealt with by someone with technical knowledge.Ripov (talk) 12:07, 19 April 2016 (UTC)

Hello fellow Wikipedians,

I have just modified one external link on Bleach. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20110609033024/http://www.clorox.com/blogs/dr-laundry/2008/06/10/your-questions-disinfecting-laundry/ to http://www.clorox.com/blogs/dr-laundry/2008/06/10/your-questions-disinfecting-laundry/

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Hello fellow Wikipedians,

I have just modified 2 external links on Bleach. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added {{dead link}} tag to http://www.tappi.org/Downloads/unsorted/UNTITLED---ipb96453pdf.aspx
• Added archive https://web.archive.org/web/20100619114657/http://www.cfsph.iastate.edu/BRM/resources/Disinfectants/Disinfection101Feb2005.pdf to http://www.cfsph.iastate.edu/BRM/resources/Disinfectants/Disinfection101Feb2005.pdf
• Added archive https://web.archive.org/web/20100614021743/http://www.vahealth.org/childadolescenthealth/EarlyChildhoodHealth/HealthyChildCareVA/documents/2009/doc/Disinfectionguidelines-childcare_8_14_09_FINAL.doc to http://www.vahealth.org/childadolescenthealth/EarlyChildhoodHealth/HealthyChildCareVA/documents/2009/doc/Disinfectionguidelines-childcare_8_14_09_FINAL.doc

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Hello fellow Wikipedians,

I have just modified one external link on Bleach. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20050110114940/http://www.osha.gov/SLTC/healthguidelines/chlorine/ to http://www.osha.gov/SLTC/healthguidelines/chlorine

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I check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of Bleach's orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.

Reference named "WHO2008":

• From Chlorine-releasing compounds: WHO Model Formulary 2008 (PDF). World Health Organization. 2009. pp. 323–324. ISBN 9789241547659. Archived from the original (PDF) on 13 December 2016. Retrieved 8 January 2017. {{cite book}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
• From Sodium thiosulfate: WHO Model Formulary 2008 (PDF). World Health Organization. 2009. p. 66. ISBN 9789241547659. Retrieved 8 January 2017.
• From Benzoyl peroxide: WHO Model Formulary 2008 (PDF). World Health Organization. 2009. pp. 307–308. ISBN 9789241547659. Archived from the original (PDF) on 13 December 2016. Retrieved 8 January 2017. {{cite book}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
• From Chlorhexidine: WHO Model Formulary 2008 (PDF). World Health Organization. 2009. pp. 321–22. ISBN 9789241547659. Archived from the original (PDF) on 13 December 2016. Retrieved 8 January 2017. {{cite book}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
• From Hygiene: "The global burden of disease: 2004 update". World Health Organization.

I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. AnomieBOT⚡ 15:23, 16 June 2018 (UTC)

The entry "Permanganate salts" in the list of "Peroxide-based bleaches" is incorrect. The oxidizing power of permanganate comes from the manganese, not the oxygen. — Preceding unsigned comment added by Michaeld42 (talk • contribs) 03:20, 16 April 2019 (UTC)

The article now states "Personal protective equipment should always be used when using bleach." Ideally, yes, this is true. However, I would imagine that 99%+ of domestic bleach users do not do this. Is there a better way of phrasing this? -- The Anome (talk) 08:40, 24 April 2019 (UTC)