It’s the greenish-black floating blobs that get your attention in this waste bottle. I find it moderately nauseating. The floating insoluble white layer adds contrast. What do you think – is it a super-nasty snowglobe? Something you would find at the back of your refrigerator? (I hope not)
The insoluble layer is a bit of a mystery, seeing how the label only lists sodium bicarbonate, sodium hydroxide, potassium hydroxide (all water soluble).