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.
N-Butane. N-Butane, also known as Normal Butane, is a flammable, colorless, mostly nontoxic gas with a natural gas odor. Exposure to 1% of Butane for an interval of 10 minutes will result in a drowsiness feeling, but no other systemic effects. Butane cannot be detected by odor below 0.5% concentration levels.It may cause frostbite if the gas comes in contact with the skin.For more information visit our MSDS database.xposure to 1% of Butane for an interval of 10 minutes will result in a drowsiness feeling, but no other systemic effects. Butane cannot be detected by odor below 0.5% concentration levels.