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For some reason DCM is listed as having a flash point of -14C, with chemister.ru as a reference. Meanwhile, both Sigma and the EPA note that it has no discernible flash point. Sigma: http://www.sigmaaldrich.com/chemistry/solvents/dichloromethane-center.html EPA: http://www.epa.gov/chemfact/s_dcm.txt
I'm not sure how much I trust this chemister.ru website. I'd change the information and references myself, but I'm unfamiliar with the code/formatting for a chemical infobox.
Achung818 ( talk) 20:30, 23 October 2014 (UTC)
I think the NFPA symbol is wrong. If I'm not mistaken it should be 3 health, 1 flammability and 2 reactivity. It's not very nice stuff to deal with.
Unless I am mistaking, in the last revision of NFPA coding, it is 2 for toxicity 1 for fire and 0 for reactivity. —Preceding unsigned comment added by Process engineer france ( talk • contribs) 14:45, 16 March 2009 (UTC)
you should list flash point for all chemicals
i deal with dichloromethane at work and also have a friend who is pregenant and has come in contact with it, what health risks does it pose for herand is it safe to use.
__Please read the MSDS sheet for water (H2O and dicloromethane)__
"The Environmental Protection Agency announced on Friday new limits on a lethal chemical found in paint stripping products that has been linked to more than 50 deaths since the 1980s" https://www.nytimes.com/2019/03/15/climate/epa-paint-stripper-methylene-chloride.html — Preceding unsigned comment added by 108.168.44.237 ( talk) 22:31, 15 March 2019 (UTC)
What is the meaning of this line? Does it belong in this article? If so, please rewrite in English.
"Dichloromethane is quite often used as a farming tool in Eastern and Central America as a gene adaptation tool."
RastaKins 03:28, 30 August 2007 (UTC)
Hello,
I realize this is a talk section, but I am concerned about a small spill at my workplace. I purchased a toy drinking bird which contains this chemical ( http://www.thinkgeek.com/geektoys/science/981b/), which was knocked over by a coworker, broken and spilled onto my desk. I cleaned up the area with some water and white board cleaner, and washed my hands thoroughly with soap. I just want to know if, based on the amount seen in the picture, if there is any concern for inhilation or prolonged exposure. —Preceding unsigned comment added by 207.45.240.18 ( talk) 20:21, 30 July 2008 (UTC)
Depending on where you look, you'll find conflicting NFPA ratings.
Can someone straighten this out, once and for all? Fuzzform ( talk) 21:53, 11 November 2008 (UTC)
NFPA rating are coming from NFPA. It is responsability of the manufacturers to report it correctly and update it on their MSDSs. —Preceding unsigned comment added by Process engineer france ( talk • contribs) 14:48, 16 March 2009 (UTC)
Should be mentioned as a cement solvent for polycarbonate plastic though it must be carefully handled. —Preceding unsigned comment added by 69.150.170.13 ( talk) 05:30, 6 May 2009 (UTC)
Shouldn't the title of the article be 'Methylene chloride' rather than 'Dichloromethane'? According to IUPAC naming nomenclature, the former is correct. John 07:31, 16 December 2009 (UTC)
The vapor pressure of methanol at room temperature is less than that of the substance it would be propelling.
Revision as of 11:22, 1 May 2009 Also used in the garment printing industry for removal of heat-sealed garment transfers. Usually sold in cans with Methanol as the propellant gas.
—Preceding unsigned comment added by 63.100.100.5 ( talk) 23:39, 4 January 2010 (UTC)
Hi, does anyone know if the boiling point listed for DCM or other solvents is the standard bp or the normal bp? I know they are about the same, but sometimes it makes a difference. Thank you. El Zarco 08:07, 27 November 2011 (UTC) — Preceding unsigned comment added by ElZarco ( talk • contribs)
There is a fundamental difference between using heat and UV light to make dichloromethane. UV light is much easier to use and is less dangerous than heat. SchicagoS ( talk) 18:20, 10 April 2012 (UTC)
Why would anyone ever make dichloromethane in the lab? It's a solvent you can buy in bulk for very little money. Even the deuterated version CD2Cl2 is widely available, if a little more expensive. Ben ( talk) 08:03, 14 April 2012 (UTC)
According to this video https://www.youtube.com/watch?v=2hIyw-YgSm8 This solvent was used with an amber dye in the bubble tubes of older jukeboxes because of its low boiling point. — Preceding unsigned comment added by 71.171.27.230 ( talk) 01:21, 31 July 2015 (UTC)
The comment(s) below were originally left at Talk:Dichloromethane/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
Is the water solubility of methylene chloride affected by pH?
4.236.84.74 ( talk) 01:21, 14 March 2008 (UTC)epsilon2718
|
Last edited at 14:17, 21 February 2012 (UTC). Substituted at 13:22, 29 April 2016 (UTC)
article about accidental carbon monoxide poisoning due to a dichloromethane-producing pesticide
- 189.60.49.251 ( talk) 19:41, 11 November 2023 (UTC)
This
level-5 vital article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||||||||
|
Other talk page banners |
The following references may be useful when improving this article in the future:
|
For some reason DCM is listed as having a flash point of -14C, with chemister.ru as a reference. Meanwhile, both Sigma and the EPA note that it has no discernible flash point. Sigma: http://www.sigmaaldrich.com/chemistry/solvents/dichloromethane-center.html EPA: http://www.epa.gov/chemfact/s_dcm.txt
I'm not sure how much I trust this chemister.ru website. I'd change the information and references myself, but I'm unfamiliar with the code/formatting for a chemical infobox.
Achung818 ( talk) 20:30, 23 October 2014 (UTC)
I think the NFPA symbol is wrong. If I'm not mistaken it should be 3 health, 1 flammability and 2 reactivity. It's not very nice stuff to deal with.
Unless I am mistaking, in the last revision of NFPA coding, it is 2 for toxicity 1 for fire and 0 for reactivity. —Preceding unsigned comment added by Process engineer france ( talk • contribs) 14:45, 16 March 2009 (UTC)
you should list flash point for all chemicals
i deal with dichloromethane at work and also have a friend who is pregenant and has come in contact with it, what health risks does it pose for herand is it safe to use.
__Please read the MSDS sheet for water (H2O and dicloromethane)__
"The Environmental Protection Agency announced on Friday new limits on a lethal chemical found in paint stripping products that has been linked to more than 50 deaths since the 1980s" https://www.nytimes.com/2019/03/15/climate/epa-paint-stripper-methylene-chloride.html — Preceding unsigned comment added by 108.168.44.237 ( talk) 22:31, 15 March 2019 (UTC)
What is the meaning of this line? Does it belong in this article? If so, please rewrite in English.
"Dichloromethane is quite often used as a farming tool in Eastern and Central America as a gene adaptation tool."
RastaKins 03:28, 30 August 2007 (UTC)
Hello,
I realize this is a talk section, but I am concerned about a small spill at my workplace. I purchased a toy drinking bird which contains this chemical ( http://www.thinkgeek.com/geektoys/science/981b/), which was knocked over by a coworker, broken and spilled onto my desk. I cleaned up the area with some water and white board cleaner, and washed my hands thoroughly with soap. I just want to know if, based on the amount seen in the picture, if there is any concern for inhilation or prolonged exposure. —Preceding unsigned comment added by 207.45.240.18 ( talk) 20:21, 30 July 2008 (UTC)
Depending on where you look, you'll find conflicting NFPA ratings.
Can someone straighten this out, once and for all? Fuzzform ( talk) 21:53, 11 November 2008 (UTC)
NFPA rating are coming from NFPA. It is responsability of the manufacturers to report it correctly and update it on their MSDSs. —Preceding unsigned comment added by Process engineer france ( talk • contribs) 14:48, 16 March 2009 (UTC)
Should be mentioned as a cement solvent for polycarbonate plastic though it must be carefully handled. —Preceding unsigned comment added by 69.150.170.13 ( talk) 05:30, 6 May 2009 (UTC)
Shouldn't the title of the article be 'Methylene chloride' rather than 'Dichloromethane'? According to IUPAC naming nomenclature, the former is correct. John 07:31, 16 December 2009 (UTC)
The vapor pressure of methanol at room temperature is less than that of the substance it would be propelling.
Revision as of 11:22, 1 May 2009 Also used in the garment printing industry for removal of heat-sealed garment transfers. Usually sold in cans with Methanol as the propellant gas.
—Preceding unsigned comment added by 63.100.100.5 ( talk) 23:39, 4 January 2010 (UTC)
Hi, does anyone know if the boiling point listed for DCM or other solvents is the standard bp or the normal bp? I know they are about the same, but sometimes it makes a difference. Thank you. El Zarco 08:07, 27 November 2011 (UTC) — Preceding unsigned comment added by ElZarco ( talk • contribs)
There is a fundamental difference between using heat and UV light to make dichloromethane. UV light is much easier to use and is less dangerous than heat. SchicagoS ( talk) 18:20, 10 April 2012 (UTC)
Why would anyone ever make dichloromethane in the lab? It's a solvent you can buy in bulk for very little money. Even the deuterated version CD2Cl2 is widely available, if a little more expensive. Ben ( talk) 08:03, 14 April 2012 (UTC)
According to this video https://www.youtube.com/watch?v=2hIyw-YgSm8 This solvent was used with an amber dye in the bubble tubes of older jukeboxes because of its low boiling point. — Preceding unsigned comment added by 71.171.27.230 ( talk) 01:21, 31 July 2015 (UTC)
The comment(s) below were originally left at Talk:Dichloromethane/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
Is the water solubility of methylene chloride affected by pH?
4.236.84.74 ( talk) 01:21, 14 March 2008 (UTC)epsilon2718
|
Last edited at 14:17, 21 February 2012 (UTC). Substituted at 13:22, 29 April 2016 (UTC)
article about accidental carbon monoxide poisoning due to a dichloromethane-producing pesticide
- 189.60.49.251 ( talk) 19:41, 11 November 2023 (UTC)