Where To Buy Rubidium -

Rubidium is a highly reactive alkali metal, so you won’t find it at a local hardware store. Because it can ignite spontaneously in air and reacts violently with water, its sale is strictly regulated and requires specialized shipping.

If you are a hobbyist looking for a small, "display-safe" sample (usually sealed in a glass ampoule under argon gas), these sites are your best bet: where to buy rubidium

Sells highly purified element samples specifically for collectors. Rubidium is a highly reactive alkali metal, so

Some regions have strict regulations on shipping reactive metals to residential addresses. where to buy rubidium

A global manufacturer that specializes in high-purity metallic elements. Element Collector Sites

Expect to pay significant "Hazardous Materials" shipping fees.

Never open the glass ampoule; rubidium must stay under vacuum or inert gas.