ICEINSPACE
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Moon Phase
CURRENT MOON
Waning Crescent 10.4%
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28-05-2009, 10:15 AM
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Plays well with others!
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Join Date: Nov 2004
Location: Ridgefield CT USA
Posts: 3,535
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Warning about DHMO
Some of you may have already seen this important warning...
http://www.dhmo.org/facts.html
Remember, I work for a chemical company and understand all about the molecular make up of this compound. 
As you read the link please be sure to recall your High School chemistry class. The LD50 for this compound is estimated > 6L per 70 kg human...
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28-05-2009, 10:26 AM
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daniel
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Join Date: Sep 2007
Location: Macedon shire, Australia
Posts: 3,427
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give this to my science students once a year
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28-05-2009, 10:43 AM
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Registered User
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Join Date: Mar 2008
Location: Wollongong
Posts: 3,819
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I've seen similar warnings before, though none so complete, about this incideous and underrated hazard. Great Work.
I clearly recall when doing Environmental Chemistry the prepared notes (written by an academic who now holds a very senior position) about dangerous solvents completely ignored this hazard, instead going on about relatively harmless chemicals such as benzene, toluene and pyridine. Fortuneltely the juniour academic who was delivering the course that year was aware of the real situation and pointed out the hazardous nature of DHMO. Quite apart from it's own intrinsic danger it is quite able to transport and store a whole raft of dangerous substances.
One thing the web site did miss is the potential for asphixiation caused by just the right mixture of DHMO and SD (silicon dioxide - another underrated hazard).
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28-05-2009, 11:42 AM
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Support your local RFS
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Join Date: May 2006
Location: Wamboin NSW
Posts: 12,405
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Thanks for the link Scott.
I didn't know much about this one. I'm glad I read it.
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28-05-2009, 11:45 AM
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Plays well with others!
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Join Date: Nov 2004
Location: Ridgefield CT USA
Posts: 3,535
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Quote:
Originally Posted by wavelandscott
Some of you may have already seen this important warning...
http://www.dhmo.org/facts.html
Remember, I work for a chemical company and understand all about the molecular make up of this compound.
As you read the link please be sure to recall your High School chemistry class. The LD50 for this compound is estimated > 6L per 70 kg human... |
I thought I also left this second post...
DHMO = 2 hydrogens and 1 oxygen...H2O (water) 
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28-05-2009, 12:50 PM
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Spam Hunter
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Join Date: Jun 2005
Location: Oberon NSW
Posts: 14,438
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Dangerous stuff! But then, no one in northern NSW or SE Qld would disagree...
Al.
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28-05-2009, 01:13 PM
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Bust Duster
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Join Date: Nov 2008
Location: Brisbane, Australia
Posts: 4,846
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I'm a little concerned. According to the material safety data sheet, its specific gravity, boiling point and melting point are all identical to water. It's colourless and odourless. My wife could hand me a glass of the stuff and I'd drink it assuming it was safe!
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28-05-2009, 02:04 PM
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Starcatcher
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Join Date: Dec 2006
Location: Gerringong
Posts: 8,548
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OMG! I've swum in mixtures of this compound with alkali metal salts! 
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28-05-2009, 03:04 PM
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Registered User
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Join Date: Mar 2008
Location: Wollongong
Posts: 3,819
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Quote:
Originally Posted by erick
OMG! I've swum in mixtures of this compound with alkali metal salts! |
"mixtures"?? Don't you mean solutions? You've been out of chemistry far too long mate. 
Personnally I suffer from a buildup of this stuff in my body. I find I need to drain it away regularly. Failure to do so can cause considerable discomfort and eventually embarrisment.
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28-05-2009, 03:33 PM
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Registered User
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Join Date: Dec 2008
Location: Mt. Waverley, VIC, Australia
Posts: 741
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Its also known for its detrimental effect on alcoholic beverages. Brandy and whiskey in particular. An even worse effect when in the solid form.
As for mixtures with the alkaline salts, a glass of a 0.9% solution of NaCl can actually make you vomit. In fact, fatal doses in children have been reported.
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28-05-2009, 03:58 PM
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Registered User
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Join Date: Aug 2006
Location: Western Australia
Posts: 8,278
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Ignorance is bliss but maybe it'll imprvoe my performance and marriage
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28-05-2009, 04:12 PM
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Moving to Pandora
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Join Date: Jan 2008
Location: Swan Hill
Posts: 7,102
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Quote:
Originally Posted by TrevorW
Ignorance is bliss but maybe it'll imprvoe my performance and marriage
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28-05-2009, 04:22 PM
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Dr Who Nut
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Join Date: Apr 2009
Location: Perth
Posts: 218
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DHMO has a lot to answer for. Atmospheric DHMO has ruined countless astronomy viewing sessions. 
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28-05-2009, 04:41 PM
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Registered User
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Join Date: Mar 2008
Location: Wollongong
Posts: 3,819
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Quote:
Originally Posted by Gallifreyboy
DHMO has a lot to answer for. Atmospheric DHMO has ruined countless astronomy viewing sessions. |
And DHMO vapour is the main greenhouse gas in our atmosphere. 
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28-05-2009, 09:03 PM
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Waiting for next electron
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Join Date: Mar 2008
Posts: 2,427
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Quote:
Originally Posted by dannat
give this to my science students once a year
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Do the same myself. Get them to sign a petition to get it banned .
Mark
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28-05-2009, 09:49 PM
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Registered User
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Join Date: Feb 2008
Location: Orange
Posts: 650
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Very clever, thanks for the warning.
A plasma-like solution containing DHMO, salt and lysozyme fell from my eyes as I read the report.  
Kerrie
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28-05-2009, 10:38 PM
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Registered User
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Join Date: Feb 2007
Location: Beaumont Hills NSW
Posts: 2,900
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I would not worry too much about it. There are many readily available antidotes available off the shelf in your local liquor store.
Barry
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28-05-2009, 11:15 PM
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The Observologist
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Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,664
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Overrated ...
Hi All,
Personally I think it's overrated unless CO2 and beer molecules are dissolved in it.
... and what the fish do in this stuff is just beyond the 'scope of a family-oriented forum such as this ... yucky-yuck-yuck!
Best,
Les D
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28-05-2009, 11:25 PM
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Old Man Yells at Cloud
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Join Date: Jan 2007
Location: Rockingham WA
Posts: 3,435
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Quote:
Originally Posted by ngcles
Hi All,
Personally I think it's overrated unless CO2 and beer molecules are dissolved in it. D |
Ooo yeah I'm a big fan of DHMO with CO2 and C2H5OH and AA in it.... mmmmm
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29-05-2009, 07:43 AM
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Teknition
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Join Date: Feb 2009
Location: Brisbane Australia
Posts: 1,721
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Hey All,
Does it cure or ease the pain of hangovers??? 
( LD50 90gms/Kg MMMM. Not good for ya' )
Cheers Marty
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