Are all plastic bins "acid-free", or are there specific types of plastic which are acid free?

-Am looking to store historical papers and wondered if just regular plastic bins are okay....

TIA!Try typing Archival storage or supplies into the search. If you read any of the sites that came up you understand how to store historical paper as well as photo and other material. You also learned that there are no plastic tub type products used - they are not acid free and because ot the need to control humidity, they do not work. The heat in plastic is higher and there is no way to control humidity.

The boxes that are used are a thick paper type box with metal reinforcement on the sides and are acid free and the protective sheets are made differently than the ones you get a your local business supply, so you can actually "seal" a document. This is not the same as the plastic laminate sheets. You should never use laminate on documents.

I know Amazon does sell archival quality supplies, but I have no tried them, but they are probably the cheapest for small purchases.. I have gotten my supplies through a genealogical library and therefore cannot suggest a specific web site.

I do know that the National Archives site has some excellent information on how to store your research, but doesn't sell archival products.
No, plastic bins are not okay. They retain heat, draw in sunlight, humidity is a problem and the gases they emit as they age break down paper. Instead, you want acid free archival quality boxes sold at craft stores.
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regular plastic bins are fine, but if you want acid free ones, then you have to look for ones that say "acid free"