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Group Information

  • Members: 3908
  • Category: Chemistry
  • Founded: Aug 23, 1998
  • Language: English
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1 New Member - 5 New Messages

Description

Hello! Welcome to The Chemistry Cluster!

We were the first club in the field of chemistry and happy to say we are still the best. Although recently had a few troubles, things are back on track.

This club welcomes members to exchange ideas on the latest or oldest developments in chemistry. Voice your queries and we will help find the answers. Post your ideas and we'll talk about them. We do anything Chemistry!

So from Beginners to Professors, or people who just have a passion for Chemistry, our club is for people on all levels. So don't feel shy, post what you want to ask. The worst you can do is learn...

Most Recent Messages

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Re: toxic molecules
thank you John W. i heard about the umbrella thing but never knew about ricin ________________________________ From: John W <JohnWW@...> To:
Posted - Mon May 28, 2012 11:31 pm
 Marcel Grygo
jasgrygo
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Re: toxic molecules
thank you ________________________________ From: Krzysztof Mitko <kmitko@...> To: thechemistrycluster@yahoogroups.com Sent: Sunday, May 27, 2012 2:50 AM
Posted - Mon May 28, 2012 11:29 pm
 Marcel Grygo
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Re: toxic molecules
Ricin, and abrin, polypeptides derived from the castor bean (after extraction of castor oil by pressing), are even more toxic. Ricin was used by the KGB to
Posted - Sun May 27, 2012 7:23 am
 John W
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Re: toxic molecules
... Check out the wikipedia: <http://en.wikipedia.org/wiki/Median_lethal_dose#Examples> They are listed by LD50 - the dose that kills 50% of test subjects.
Posted - Sun May 27, 2012 6:50 am
 Krzysztof Mitko
krzysztof.mitko
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toxic molecules
do any of you know any molecules that are very toxic ? the most toxic one i know is osmium tetraoxide thanks, marcel
Posted - Sun May 27, 2012 1:06 am
 jasgrygo
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2012 6 7 11 40 8
2011 18 14 21 11 1 25 58 18 18 10 16 12
2010 26 45 152 22 30 24 30 27 40 17 18 19
2009 49 78 35 37 40 17 34 49 29 14 17 27
2008 81 84 127 113 59 99 73 50 63 48 70 30
2007 147 99 166 149 140 134 97 108 89 134 66 76
2006 174 184 183 129 109 153 141 201 215 182 156 94
2005 185 222 191 222 185 112 102 116 188 249 173 123
2004 226 150 213 164 137 123 118 91 385 287 304 183
2003 63 52 106 90 241 85 76 114 90 127 193 152
2002 85 129 73 72 113 56 64 60 111 87 96 92
2001 77 66 80 77 65 56 106 45 53 91 117 59
2000 61 81 67 44 61 71 69 81 51 147 105 83
1999 52 51 35 72 33 24 18 32 58 24 64 44
1998 6 9 30 22 57
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