Daniel B Rego

2 Questions 5 Answers 0 Followers

Questions related from Daniel B Rego

DMSO not freezing when put into freezer while hot, but will freeze when put into the freezer while cold

When I pour DMSO at room temperature into a Teflon dish and immediately put it in a freezer at -20 degrees C, it freezes fine. However, when I pour DMSO at 90 degrees C and similarly pour it into...

05 May 2017 4,731 5 View

Zeta potential measurement of a solid surface?

I need to measure the zeta-potential and/or surface charge on solid samples (e.g. polymer sheets, cements, &c.). Most of the instruments and literature techniques involve colloids or...

09 September 2016 4,225 11 View