Yeah d-limonene is completely clear.
Seems to me a merchant could buy a large wholesale lot of food grade GreenTerpene d-limonene and sell it over seas for good profit. I'm sure there are many Europeans and people in the UK that would love to go green with all their solvent use. There are so many good uses for d-limonene. It can replace many solvents in many industries. It costs more than naphtha and similar solvents but because it’s a "GREEN" solvent, I think it's worth the extract money. It’s far better for the environment than most of the other solvents. You would think that the green movement would catch on to using d-limonene.
Personally, if there are two products, one is toxic and poisons the environment and another is all natural, non-toxic and biodegradable, I would always choose the natural product unless it was way too expensive to afford it. D-limonene isn't that expensive. It is more expansive than naphtha, acetone, etc., but the extra expense is justified in my opinion. And I'm sure if everyone started using it the price would drop.
I use it for a lot of things around the house. It’s great for removing stickers that the kids put all over the place. Just put some on a paper towel and soak the sticker a little with it and it easily peels right off. Then wipe the remaining sticky residue with a paper towel soaked in d-limonene and it’s all gone. It can dissolve tough grease pretty easily so it’s great for cleaning pans. It has such a nice smell too. If you mix a little into some soap, it can cut grease with amazing power. After working on your car, your hands are sometimes covered with grease that’s impossible to get off with soap, but add a few drops of d-limonene to the soap and it comes right off. It’s even useful as a fresh smelling deodorant. This stuff in fantastic.