The role of superfine palladium powder

Superfine palladium powder is atramentous powder; Performance stable, adsorption adeptness of hydrogen. Mainly acclimated to accomplish blubbery blur aqueduct lurid and hydrogen ablution materials. Non-flammable material, for accepted carriage drugs. with scale-like, baggy and globular. A scaly aegis crumb aggregate body of 0.67 ~ 0.95g/cm3. Tap body of 1.6 ~ 2.00g/cm3. The boilerplate atom admeasurement of 0.35～ 0.48 μ m, specific apparent breadth of 3.3 ~ 5.2m2/g. The aboriginal authentic aegis into aegis chloride acerbic solution, ammonia baptize network, additional superfine powder, heating and stirring, accession of abbreviation agent, washing, dehydration to access the boilerplate atom admeasurement of <0.5μ m aegis powder. Conductive for blubbery blur pastes, crumb metallurgical material, catalyst, ablution of auto exhaust. Aegis is ablaze white metal, soft, acceptable ductility and plasticity, forging, rolling and cartoon can. Can blot a ample aggregate of hydrogen aggregate brownish palladium, accomplish aggregate decidedly enlarged, breakable and breach into pieces. Under accustomed temperature, 1 aggregate of blot aegis can blot 900 aggregate of hydrogen, the 1 aggregate of Colloid Aegis can blot 1200 aggregate of hydrogen. Heated to 40 ~ 50℃, assimilation of hydrogen is big release, broadly acclimated as gas reaction, abnormally hydrogenation or dehydrogenation catalyst, but aswell can be acclimated to aftermath attrition wire, clocks and alloy.

Superfine palladium powder can be acclaimed from accustomed admixture of platinum metal. Aegis in Earth's affluence are scarce, mining and admixture is difficult, is a attenuate and adored metal alternation of gold, silver, platinum, palladium, ruthenium, iridium. The agreeable of aegis in the band is 1× 10-6%, minerals and added platinum accumulation elements are broadcast in the alluvial deposits and placer drop (such as platinum, nickel sulfide ore, nickel pyrite ). Independent six affair aegis ore minerals, aegis and platinum ore lead, a four advance aegis ore, stibiopalladinite, polarite palladium, tin ore, but aswell in the chargeless accompaniment anatomy accustomed palladium. Is an important actual in aerospace, aviation, navigation, weapon and high-tech areas such as nuclear activity and auto accomplishment industry, but aswell all-embracing adored metals investment on the bazaar can not be abandoned investment varieties. Aegis in allure above catalyst; aegis and ruthenium, iridium alloy, silver, gold, chestnut and added metal, can advance the resistivity, acerbity and backbone of palladium, acclimated in the accomplish of attention resistance, jewelry, etc.. But the a lot of accepted and a lot of has the bazaar amount of aegis adornment aegis admixture is.

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