last night I set out a jar that was easily, easily separating and there was tons of naphtha in it. This morning, i woke up (the top was sealed on TIGHT!!), and there weren't nearly as big of layers. After stirring it and letting it sit, the layers didn't come back so I added at least 20g of NAOH. I'm completely confused...why would the layers be there yesterday, but not today...even with a higher pH level...?