1. Home
  2. ⚗ Material Sciences
  3. Barium Fluoride Crystal

Barium Fluoride Crystal

Hello to everyone

I got a problem, I have a Barium Fluoride crystal for Infra Red Transmission Spectra, and after cleaning it with water it has become foggy and I can't find any way of getting rid of it. Can someone tell me how?

Thanks a lot

Posted Via Usenet.com Premium Usenet Newsgroup Services

---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **

----------------------------------------------------------

formatting link

----== Posted via Newsfeed.Com - Unlimited-Uncensored-Secure Usenet News==----

formatting link
The #1 Newsgroup Service in the World! >100,000 Newsgroups

---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =---

Reply to
Reithor
Loading thread data ...

As you've found out the hard way, BaF2 is slightly water-soluble--you've destroyed your optical surfaces. BaF2 isn't the most soluble infrared material--it's only 1.7g/litre at room temperature, compared with

370g/litre for NaCl, but that's quite enough.

Your options are: (A) repolish, or (B) replace.

I recommend (B) if you want reliable spectra in the future, since some of the water probably soaked in. BaF2 can be cleaned with clean ethanol, IIRC, but check with the manufacturer of your new window.

Cheers,

Phil Hobbs

Reply to
Phil Hobbs

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.