Ultrasonic humidifiers are the quietest humidifiers available, and the ideal choice when noise level is a concern (if you are a light sleeper). In general, a warm moisture humidifier will be much quieter than a cool moisture evaporative humidifier.
Iodine is a chemical element with symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at a standard conditions that sublimes readily to form a violet gas. The elemental form was discovered by the French chemist Bernard Courtois in 1811.
Iodine pentafluoride is an interhalogen compound with chemical formula IF 5. It is a fluoride of iodine. It is a colorless or yellow liquid with a density of 3.250 g cm â3.It was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas.This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.t was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas. This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.