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.
How much does helium cost per gram? Because helium is a gas, it is not measured in weight, but rather in volume. The 2009 retail price of a helium cylinder with 15 cubic feet of helium was about 30 Euros ($40 USâ¦D). This figure would represent $0.53 per gram of helium in the tank. Larger volumes have an estimated cost of less than $0.05 (5 cents) per gram of helium. Making the world better, one answer at a time.