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Fluorine

Fluorine

(Science: chemistry, element) a non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colourless gas.

fluorine unites with hydrogen to form hydrofluoric acid, which is the agent employed in etching glass. It occurs naturally, principally combined as calcium fluoride in fluorite, and as a double fluoride of aluminium and sodium in cryolite.

atomic weight: 19

Abbreviation: f

Origin: NL. Fluorina: cf. G. Fluorin, f. Fluorine. So called from its occurrence in the mineral fluorite.


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I want you like X wants Y type sentences

fluorine would be better, but not much biology though

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by JackBean
Sat Jan 21, 2012 3:18 pm
 
Forum: General Discussion
Topic: I want you like X wants Y type sentences
Replies: 10
Views: 6752

Digestive System Evolution

... split. How did carbon form? How is it even possible for carbon to form? The answer is that it is not possible for carbon, iron, mercury, aluminum, fluorine, chlorine, magnesium, calcium, anything with an atomic number of 2 or above, to form. Life and the very world as we know it cannot exist by ...

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by Tomn
Sat Oct 08, 2011 11:47 pm
 
Forum: Evolution
Topic: Digestive System Evolution
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Breaking Down Hydro-Silica Gels Within the Body

... the silica surface. so no luck there.... dioxygenyl? http://en.wikipedia.org/wiki/Dioxygenyl silica gels react strongly with hydrogen fluoride, fluorine, oxygen difluoride, chlorine trifluoride. however these compounds are poisonous to the human biological system so are not usefull. the resonant ...

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by vincio
Thu Feb 12, 2009 8:30 am
 
Forum: Molecular Biology
Topic: Breaking Down Hydro-Silica Gels Within the Body
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Views: 5977

fluorine containing amino acids

No there is no one.......... Fluorine is corosive for amino acids.... Sulphur is there......

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by sachin
Fri Jan 12, 2007 6:10 pm
 
Forum: Molecular Biology
Topic: fluorine containing amino acids
Replies: 4
Views: 1601

fluorine containing amino acids

hi are there any amino acid containing fluorine? can you tell me there molecular structure please. and are the amino acids containing fluorine used in proteins? thanks :D

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by mehdi71000
Fri Jan 12, 2007 5:58 pm
 
Forum: Molecular Biology
Topic: fluorine containing amino acids
Replies: 4
Views: 1601
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