Dry Ice, Liquid Nitrogen, Compressed Gases, Gas Tank regulators and valves are available through Procurement and Payment Services' Lab Gas Program: Lab Services monitors the quantities and locations ...

Common examples are oxygen, nitrogen, helium, and argon. Dissolved gases are very unstable ... A commonly used type of gas cylinders is a propane tank. Propane is a gas used in homes, farms, ...

MONTGOMERY, Ala. — Alabama is planning to carry out the nation’s third execution with nitrogen gas as critics argue the method needs more scrutiny before it is used to put another person to death.