There isn't a specific name for a "ring stand" used in chemistry. The term "ring stand" is commonly used to describe the entire setup, which includes:

* Ring stand: The vertical metal rod with a heavy base.

* Ring clamp: The circular clamp that attaches to the ring stand.

* Rings: Metal rings of various sizes that can be attached to the ring clamp.

So, if you're referring to the vertical rod with the base, you would simply call it a ring stand. If you're talking about the whole setup, you'd still call it a ring stand.

It's important to note that the ring clamp and rings are separate components that are used in conjunction with the ring stand.