Medicine/Medical. a regulated course, as of diet, exercise, or manner of living, intended to preserve or restore health or to attain some result. 2. regime (defs 1, 2). 3. Grammar. government (def 9). Origin of regimen.
1 Sodium azide is a rapidly acting, potentially deadly chemical that exists as an odorless white solid. 2  When it is mixed with water or an acid, sodium azide changes rapidly to a toxic gas with a pungent (sharp) odor. Breathing the gas that is formed from sodium azide causes the most harm, but ingesting (swallowing) sodium azide can be toxic as well. 2  The gas formed from sodium azide is most dangerous in enclosed places where the gas will be trapped. 3  The toxic gas quickly disperses in open spaces, making it less harmful outdoors.
Sodium azide is a crystals; soluble in water and liquid ammonia; decomposes at 300C. Sodium azide rapidly explode and release nitrogen gas by impact, used as a propellant of automotive safety bag (inflating). Sodium Azide is used in the preparation of hydrazoic acid ((HN 3), lead azide, explosives.Sodium azide is a good nitrogen liberating agent. It is used in organic synthesis including pharmaceuticals (such as Alfentanil; Azosemid; Broperamol;). It is used as a soil sterilizing agent, fungicide, and herbicide.ttp://www.ehs.neu.edu/ Sodium Azide, NaN3, mol wt 65.02, CAS Number 26628-22-8, is a colorless, odorless, crystalline solid (salt-like) or solution. It is soluble in water or liquid ammonia, slightly soluble in alcohols, and insoluble in ether.