Characteristics: Bismuth is a brittle, silvery-green metal that has a low melting temperature and high specific gravity. Being both stable and non-toxic, bismuth is often used as a replacement for toxic metals such as antimony, cadmium, lead and mercury.
1 (Minimums vary by location and tank size, and can range from 100-1,500 gallons.) More often, the propane company charges a fee of anywhere from $25-$250 a year but averaging around $75-$130 annually, depending on local rates, the size of the tank and whether it's aboveground or underground.
Propane tank price. Propane tanks come in various shapes and sizes, aboveground and underground. Here is a little information to help you figure out how much the one you need will cost you. On the whole, propane tank prices vary from $350 to $3,500 if you decide to buy one.