Name
Chinese name: Potassium nitrate
Chinese alias:saltpeter , salt denitration, niter,saltpetre
English name: Potassium nitrate, Nitre, Saltpetre
Relative molecular mass:101.10
Traits:Colorless transparent prismatic or white particles or crystalloid powder. Spicy taste and salty have cool feeling. Micro hygroscopic, hygroscopicity than sodium nitrate for small. After 400 Degrees Celsius when the breakdown escaping oxygen. 1g soluble in water, 2.8 ml of 0.5 ml boiling water, 620ml ethanol. Soluble in glycerin, insoluble in anhydrous alcohol. Soluble in water can absorb heat lower temperature. Aqueous pH of about seven. The relative density (2.109 d164). Melting point Degrees Celsius334. Have strong oxidizing, with organic friction or impact can also cause burns or explosion. Half the lethal dose (rabbit, classics mouth) 1.166 g (anion) / kg.
Storage
Sealing cool and dry preservation.
Safety measures
Stored in a cool and dry place, away from the fire and heat source. Avoid by all means and reductant, acids, easy (can) fuel content, metal powder were shipped. Store mix Swallowed, water gargle, drink milk or egg white. Extinguishing: Mist shape water, sand.
Burning : Non-combustible extinguisher: Mist shape water, sand. Note: Firefighters extinguishing must wear a mask, wear systemic fire clothing. Don't shoot directly to melt water content, lest cause serious flowed fire or cause severe boiling splash.
Dissolved
Soluble in water, dilute ethanol, glycerin, insoluble in anhydrous alcohol and aether.
Use
For making gunpowder, glass, matches, and as fertilizer and analysis reagent, potassium nitrate, easier, the molecular