Dear colleagues,
I am in a dire need of your help.
After the synthesis I have the mixture of TaSi2, TaC, SiC, Si3N4 and MgF2. I need to clear my mixture from the MgF2. What kind of acid etching can I use to selectively dissolve the MgF2?
Thank you.
Skomantas Serapinas
You could probably use dilute nitric acid, MgF2 should have some solubility according to Merck Index. The others I think should be inert and insoluble.
1 votes
1 thanks
Skomantas Serapinas
It doesn't say. If you have a slab of the mixture I think it will take a long time but I would go for fairly dilute maybe 5%. I also had a look in the CRC book and one of the components was soluble in HF and HNO3 mixture, so depending on how much HF is produced that might be a problem. Hope that helps
0 votes
0 thanks
- Badges
- Science topic
- Similar topics
- Engineering
- Materials Engineering
- Powders
More Stepan Vorotilo's questions See All
Similar questions and discussions