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.
1 Average U.S. gas prices have dropped about 37 cents per gallon since hitting a 2015 peak price of $2.80 on June 15. 2  Average gas prices have dropped due to lower crude oil costs and abundant petroleum supplies. 3  Gas prices averaged $2.60 per gallon in August, which was the lowest average for the month since 2005. Todayâs national average price of gas is $2.44 per gallon, which is 99 cents per gallon less than a year ago. 2  U.S. consumers should save more than $1 billion on gasoline over the holiday weekend compared to 2014, with many drivers saving about $15-$25 on every trip to the gas station.