Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
Photo

Bromine jar growing strange crystals...

Beomine Labsafety

  • Please log in to reply
7 replies to this topic

#1 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 03 November 2012 - 03:19 AM

Hi all,

I dont get why this jar has started growing crystals on the outside.

Its Bromine 99% (purissim) inside.

Could it be a leaking gas that crystalises on the outside?

What to do with it?

The jar is about 5-7 years old.

cheers!

#2 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 03 November 2012 - 03:31 AM

bromine_crystals.jpg

#3 phage434

phage434

    Veteran

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 2,483 posts
251
Excellent

Posted 03 November 2012 - 04:43 AM

It's in a metal can, and the crystals are a result of small amounts of bromine leaking and reacting with the metal, forming the metal bromide. The bromine is probably still good, and you could still use it. You probably want to replace the metal can.

#4 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 04 November 2012 - 03:04 AM

But isn't this really toxic?
Can I just whipe of the bromine crystals from the outside and dispose it?
I see that I should use glasses, mouthfilter, coat and nitrile gloves when handling it... in the cupboard.
Probably I'll just scrape of the crystals and save them in a separate container.

#5 hobglobin

hobglobin

    Growing old is mandatory, growing up is optional...

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 5,536 posts
101
Excellent

Posted 04 November 2012 - 05:04 AM

I'd replace the whole metal jar and also try to seal the bottle inside and work under a fume-hood. Or if you don't need the bromide, dispose of as hazardous waste following your lab regulations for such stuff.
As Bromine is quite corrosive and reacts with many materials (plastics, metals), has a low vapour pressure and is toxic for humans and many other organisms, it's not easy to store it long time without leakage (e.g. in a glass bottle with a plastic lid that starts to corrode after some time) and therefore it's questionable if you should store especially larger amounts in your lab or in your stock of chemicals (which is hopefully ventilated).

One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.

That is....if she posts at all.


#6 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 05 November 2012 - 01:47 AM

Thanks for the replies.

I recently got in charge of a school laboratory that had been left in "this state".

My theory is that the lab was set up by an ambitious chemist but was later left to... degenerate.

The last teacher I´ve talked to had little idea about the chemicals, safety equipment, waste disposal... basically he was not using the lab.

Since we are soon facing an inspection I will have to present this decision to my superiors: Retain the lab, but in good order, and perhaps do more chemistry education, or "minimise" the lab so that it allows for the basic chemistry of a high school without presenting unneccesary hazards to (unprepared) teachers and students.

Still though, from what he told me there was no waste disposal plan :/

#7 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 07 November 2012 - 06:58 AM

OK so I got a company to come and get the leaking jar...

cheers!

#8 mordiano

mordiano

    member

  • Active Members
  • Pip
  • 22 posts
0
Neutral

Posted 17 November 2012 - 03:36 AM

Ohh.. I also got the responsibility to manage the lab from now on, in part thanks to handling this!! :)




Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.