View previous topic :: View next topic |
Author |
Message |
jorge santos garcia
Joined: 06 Jan 2008
Posts: 34
Location: Évora
![Access to the FMF Gallery title=](templates/FabreMinerals/images/Foro2FMFGallery.jpg)
![View user's profile View user's profile](templates/FabreMinerals/images/lang_english/icon_profile.gif)
![Send private message Send private message](templates/FabreMinerals/images/lang_english/icon_pm.gif)
|
Posted: Jan 06, 2011 19:16 Post subject: Any Special Care to Keep Ettringite? |
|
|
Hello all
I've read that ettringite may dehidrate over time and became white, opaque and dull, sometimes it even may alter to gypsum. Is there any kind of special care to avoid that to happen?
Thanks
Jorge |
|
Back to top |
|
![](templates/FabreMinerals/images/spacer.gif) |
alfredo
Site Admin
![](images/avatars/809.jpg)
Joined: 30 Jan 2008
Posts: 981
![Access to the FMF Gallery title=](templates/FabreMinerals/images/Foro2FMFGallery.jpg)
![View user's profile View user's profile](templates/FabreMinerals/images/lang_english/icon_profile.gif)
![Send private message Send private message](templates/FabreMinerals/images/lang_english/icon_pm.gif)
|
Posted: Jan 06, 2011 22:07 Post subject: Re: Any Special Care to Keep Ettringite? |
|
|
A bigger danger, I think, is reaction with CO2 gas from the atmosphere, forming a dull white film of Ca carbonate on the surface. You should keep it in a closed container, with a bit of slaked lime - Ca(OH)2 - for absorbing carbon dioxide. And don't breathe on it! |
|
Back to top |
|
![](templates/FabreMinerals/images/spacer.gif) |
jorge santos garcia
Joined: 06 Jan 2008
Posts: 34
Location: Évora
![Access to the FMF Gallery title=](templates/FabreMinerals/images/Foro2FMFGallery.jpg)
![View user's profile View user's profile](templates/FabreMinerals/images/lang_english/icon_profile.gif)
![Send private message Send private message](templates/FabreMinerals/images/lang_english/icon_pm.gif)
|
Posted: Jan 07, 2011 04:43 Post subject: Re: Any Special Care to Keep Ettringite? |
|
|
Thank you Alfredo, I will hold my breath everytime I look at it.
Cheers
Jorge |
|
Back to top |
|
![](templates/FabreMinerals/images/spacer.gif) |
|