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|Product Name:||Palladium||CAS No.:||7440-05-3|
|Usage:||Chemical And Medical||Density:||1.025 G/mL At 25 °C|
|Color:||Black Powder||Supply Ability:||100kg|
Black Palladium Powder,
99% Catalyst Powder
Palladium CAS 7440-05-3 black powder 99% Catalyst Powder
|Density||1.025 g/mL at 25 °C|
|Boiling point||2970 °C(lit.)|
|Melting Point||1554 °C(lit.)|
|Usage||Chemical and Medical|
|Storage conditions||Store in a cool, ventilated warehouse. Keep away from fire and heat sources. Should be stored separately from acids and halogens, and avoid mixed storage|
|Stability||Avoid contact with oxides, strong acids, alkalis, and halogens. It is soluble in regia, hot nitric acid and sulfuric acid, slightly soluble in hydroch acid, insoluble in cold water and hot water.|
|5449-12-7||BMK Glycidic Acid (sodium salt)|
|28578-16-7||PMK ethyl glycidate|
Palladium was discovered in 1803 by W.H. Wollaston during refining and purification of- platinum metal. This new metal was found in the aqua regia extract of native platinum and was detected in solution after platinum was precipitated. It was removed as ammonium chloroplatinate. Treating this solution with mercurous cyanide precipitated a yellow palladium complex salt. The precipitate was washed and ignited to form palladium metal. Wollaston named the element palladium after the newly discovered asteroid Pallas.
Palladium in nature is always associated with other platinum group metals. Its abundance in earth's crust is estimated at 0.015 mg/kg, about three times more abundant than platinum. Palladium is used mostly in alloys and the majority of its alloys are used for electronics and telecommunications. They are contacts in electrical relays and automatic switching gear. Palladium-gold alloys are applied widely in dentistry and medicine.
Palladium, a transition element belonging to group III in the periodic table (nickel group) and light platinum metals, is a medium-hard, moderately forgeable, and ductile silverwhite metal. Soluble in aqua regia, hot nitric acid, sulfuric acid, slightly soluble in hydrochloric acid, insoluble in cold water and hot water. In its compounds, palladium usually assumes oxidation state +2 and +4, forming bivalent and tetravalent salts.
Palladium is a transition metal element used in catalytic reactions involving processes such as hydrogenation. Lindlar Catalyst.
In form of gold, silver, and copper alloys in dentistry; for alloy bearings, springs, balance wheels of watches; for mirrors in astronomical instruments; as catalyzer in manufacture of sulfuric acid and in other oxidizing processes; in powder form as catalyst in hydrogenation and in ignition of hydrogen or hydrocarbons with oxygen; the spongy form is used in gas analysis for separating hydrogen from mixtures of gases.
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