Muscle cramps may be brought on by many conditions or activities, such as: 1  Exercising, injury, or overuse of muscles. 2  Pregnancy. Cramps may occur because of decreased amounts of minerals, such as calcium and magnesium, especially in the later months of pregnancy.  Exposure to cold temperatures, especially to cold water.
Butane is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite.
You won't believe these 10 facts about people. Butane is a gaseous component of natural gas, much like gasoline is a component of crude oil. While petroleum products like gasoline are refined, natural gas products are extracted. Butane can also be produced from crude oil, but in much smaller quantities.