From wslee at stanford.edu Tue Jul 26 12:03:03 2011 From: wslee at stanford.edu (Scott Lee) Date: Tue, 26 Jul 2011 12:03:03 -0700 Subject: Glycerin use at wbgeneral Message-ID: Hi all, I wasn't sure who to send this to so I decided to send it to the safety and specmat mailing lists. I am working with a collaborator in Illinois on hafnium diboride (HfB2) as a hard, conductive material. I need to selectively etch SiO2 without etching the HfB2. My collaborator says his group has had success using a 5:3 BOE:glycerin solution where the BOE is 7:1 40%NH4F:49% HF. I would like to use this solution at wbgeneral since I will be working with HF and I need to go to CPD afterwards. Since glycerin is an alcohol (which is not normally permitted at wbgeneral), I wanted to make sure it is okay to use. Let me know if you have any concerns. I attached the link to the MSDS sheet below. Thanks, Scott http://www.sciencelab.com/msds.php?msdsId=9927350 -------------- next part -------------- An HTML attachment was scrubbed... URL: