Dictionary » B » Barium

Barium

Barium

(Science: chemistry) One of the elements, belonging to the alkaline earth group; a metal having a silver-white colour, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it becomes oxidized in the air. Symbol, ba. Its oxide called baryta. [Rarely written barytum.

Some of the compounds of this element are remarkable for their high specific gravity, as the sulphate, called heavy spar, and the like. The oxide was called barote, by Guyton de Morveau, which name was changed by Lavoisier to baryta, whence the name of the metal.

Origin: NL, fr. Gr. Barys heavy.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Important unknown nanotech within humans

... "established",its impossible to do so otherwise is it not?. it is noticable there are patents in existence regarding the spraying of barium,aerosols and aero sol liquidsinto the atmosphere and that the phenomenon and results of these aerosol activities have been studied and proven. ...

See entire post
by vincio
Tue Feb 10, 2009 4:23 pm
 
Forum: Molecular Biology
Topic: Important unknown nanotech within humans
Replies: 28
Views: 6293

Re: Important unknown nanotech within humans

... of oppositily charged ions to the colloid cations,anions would also cause a solidification......such cations are dominant in chemtrail samples! Barium Alluminium Cobalt Lithium Calcium Magnesium Titanium http://www.carnicom.com/lab12b.JPG http://www.rense.com/general21/conf.htm Infact the constituants ...

See entire post
by vincio
Tue Feb 10, 2009 7:22 am
 
Forum: Molecular Biology
Topic: Important unknown nanotech within humans
Replies: 28
Views: 6293

Exponential Growth and Decay

... (I think I first need to work out the amount of radioactivity in the sample to be used in the experiment, but couldn't work that one out) 3) Barium-140 has a half light of 13 days. How many decay half-lives does a sample of barium-140 undergo in 6 weeks? What fraction of the sample would ...

See entire post
by Chemhalp
Wed Apr 23, 2008 6:11 pm
 
Forum: Molecular Biology
Topic: Exponential Growth and Decay
Replies: 11
Views: 876

Re: Competitive/Non competitive inhibitors

... human salivary amylase) is a metalloenyzme which binds 1 Ca per molecule of enzyme. Iron(III) or Iron(II) salts might be inhibitors, so might Barium(II) or possibly Cadmium(II) salts—but watch out with the latter especially; it binds strongly to sulfhydryls and might simply inactivate the ...

See entire post
by blcr11
Mon Mar 17, 2008 2:34 pm
 
Forum: Molecular Biology
Topic: Competitive/Non competitive inhibitors
Replies: 3
Views: 876

Effects of basic solution on photosynthesis

... suppose I have sort of regular garden plant that likes a pH from 5-7. What if, instead of watering it with water (pH 7) but with, let's say, a Barium Hydroxide solution or Sodium Hydroxide solution (with a pH of 10), how would that effect the photosynthetic ability of the plant? I've been searching ...

See entire post
by nav
Thu Feb 07, 2008 10:51 pm
 
Forum: Botany Discussion
Topic: Effects of basic solution on photosynthesis
Replies: 6
Views: 2021
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 854 times. 
What links here | Related changes | Permanent link