Sciencemadness Discussion Board

What are two elements that have an attraction for each other?

drakecai - 10-10-2010 at 21:56

what are two elements or compounds (liquid) that have a big attraction for each other? That can't be seperated from each other through physical means but only from chemical reactions?

or require a lot of strength to be removed from each other. A LOT OF STRENGTH.

Rogeryermaw - 10-10-2010 at 22:43

you're asking a question with thousands of possible answers. give more details. temp, conditions, wet or anhydrous, the list goes on.

woelen - 10-10-2010 at 22:44

Bromine and cesium. Bromine is liquid at room temperature, Cs is liquid at 30 C or so. When you mix the two you will have a VERY strong reaction and the resulting salt, CsBr, is very hard to make into its composing elements.

drakecai - 10-10-2010 at 22:49

so If i applied bromine on one end of a wooden block and cesium on another will I be able to physically pull them apart after the reaction?

Also i'm looking for something that is less reactive.

[Edited on 11-10-2010 by drakecai]

psychokinetic - 10-10-2010 at 23:45

If they're on opposite ends of the block, they won't be reacting.

Unless you mean.... two blocks, substances meet in middle?

Gotcha. If you're looking for macroscopic effects, you're looking for glues.

http://en.wikipedia.org/wiki/Epoxy ?

drakecai - 10-10-2010 at 23:56

well no superglue really works for me right now, i'm trying to attach two cotton objects together and when superglue touches cotton it might ignite it and it gives off this awful smell and it irritates my eyes. (probably a reaction from cotton and superglue) I have used almost all of the current glues and was wondering if you might tell me some elements that give off that "macroscopic effect" and those elements haven't been used yet for glues.

Eclectic - 11-10-2010 at 04:39

Try silicone RTV adhesive.

peach - 11-10-2010 at 06:11

Teflon.

It's just carbon with lots of fluorines all over every single bond position it has.

Which is why it's chemically bulletproof.

In terms of pure elements, nitrogen to nitrogen.

{edit}

Right, two cotton objects. I'm not sure why you'd need a super strong bond for that given that the cotton is super soft by comparison but... epoxy glue. Epoxy paints are used industrially where the surface needs to be super resistant to damage and things being spilt on it.

Watering the epoxy down with an appropriate solvent, or using a casting / modeling form that's already runnier, will help it penetrate the cotton better.

[Edited on 11-10-2010 by peach]

zed - 11-10-2010 at 13:28

One.... What objects are are you trying to glue together? And why?

Two.... Superglue generally will not cause cotton to ignite.

Three.. Superglue vapor always irritates the eyes.

peach - 11-10-2010 at 15:13

It irritates me in general, because I usually end up with spoons and pencils stuck to me.

entropy51 - 11-10-2010 at 16:07

Quote: Originally posted by peach  
It irritates me in general, because I usually end up with spoons and pencils stuck to me.
Consider yourself lucky.

A quick google indicates that super glue has been mistaken for:

1. Lip balm

2. Preparation H

3. Eye drops

psychokinetic - 11-10-2010 at 17:04

Quote: Originally posted by entropy51  
Quote: Originally posted by peach  
It irritates me in general, because I usually end up with spoons and pencils stuck to me.
Consider yourself lucky.

A quick google indicates that super glue has been mistaken for:

1. Lip balm

2. Preparation H

3. Eye drops


o.o'

peach - 11-10-2010 at 23:35

My mum has managed to drink Stardrops Ammonia cleaner thinking it was grapefruit juice; same colour. Considering it contains (or at least I think it used to) Bitrex, that it makes me feel better about not liking grapefruits.

That, or it was an attempt at suicide.

[Edited on 12-10-2010 by peach]

DDTea - 12-10-2010 at 06:30

VX is a pretty good adhesive, but only true badasses use it for that purpose.

psychokinetic - 12-10-2010 at 11:57

Peach, your mother is why the rest of us can't have nice things.

Nothing personal against yer mum, but the sad thing is there are many people who would do that...... more than once.

franklyn - 12-10-2010 at 19:04

Hafnium and Zirconium , I thought everyone new that.
What is the point of this test ? Please explain.

http://pubs.acs.org/doi/abs/10.1021/i560120a015
http://dx.doi.org/10.1016/0020-708X(81)90050-8
http://nvl.nist.gov/pub/nistpubs/jres/066/6/V66.N06.A09.pdf
http://www.osti.gov/bridge/servlets/purl/6870623-bgORvn/6870...
http://en.wikipedia.org/wiki/Hafnium

.

psychokinetic - 12-10-2010 at 21:14

I swear it says Zirconium more on that wiki page than it does of the title element.

Panache - 12-10-2010 at 22:13

CsF, just get some fluorine liquid (cold) and some cesium and get them in contact, then try to get your fluorine gas back with a hammer or a vice, you'll struggle i believe.

peach - 13-10-2010 at 00:16

Quote: Originally posted by franklyn  

What is the point of this test ? Please explain.


a.) Homework that's already been handed in
b.) Someone trying to design something who can't specify a glue and isn't really that bothered based on the lack of response
c.) Someone who isn't really that bothered

DDTea - 13-10-2010 at 01:40

Quote: Originally posted by Panache  
CsF, just get some fluorine liquid (cold) and some cesium and get them in contact, then try to get your fluorine gas back with a hammer or a vice, you'll struggle i believe.


Have fun working with elemental fluorine...