I doubt if there would be any acid or other types of chemicals involved in either plastic or wood furniture. Wood furniture would involve wood, stains, and finishes. It isn't really anything that you could not buy at your local home improvement store except that a high end furniture manufacturer would be using hardwoods rather than Douglas fir or pine. A low end furniture manufacturer would use particle board and vinyl wrap, which would entail glues but not a whole lot different from the tank cars binging in stains, finishes, and glues for high end furniture. If I'm not mistaken, plastic furniture is made by filling a mold with plastic pellets and using enough heat to melt the pellets to fill the form, or else they melt the plastic pellets first and pour them into the form. They would use a wax of some sort or talc for a mold release agent.
Of course, if you are modeling in the modern era, the only furniture plants left in this country are some of the high end hardwood plants in the Southeast. Virtually everything else is made in China!