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.
Todayâs Gas Prices (Dec. 31, 2012). 1  Todayâs national average price of gasoline is $3.29 per gallon, which is 4.5 cents more than a week ago and 1.6 cents more than a year ago. 2  The five states with the highest prices include: Hawaii ($3.99), N.Y. ($3.74), Conn. ( 3 $3.68), Calif. ( 4 $3.57) and Vt.