Ed P
TVWBB Honor Circle
A couple of things I remember about sodium hydroxide from college chemistry...the stuff we used was small white pellets in a sealed glass container and if you let it sit out uncovered, it would "melt" by pulling moisture out of the air (hygroscopic). It has a slick, greasy kind of feel to it and takes forever to wash off your skin completely. Nasty stuff. The Sam's stuff is probably watered down, but please, protect yourself. Chemical burns are not pleasant.