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.
It's springtime, and you know that means: The return of your gas price nightmares. Hey, with the average American spending over $2,000 per year just to fill up the tank, we can't blame you. Based on recent estimates, the national average for a gallon of gasoline is roughly $3.74, FOX Business reports.