Palladium and its compounds are rarely absorbed by oral administration. The inhaled palladium compounds mainly stay in the lungs, and the absorbed palladium is quickly transported to organs such as liver, kidney, spleen, adrenal gland, lung and bone. , mainly through urine excretion.

According to experts, the toxicity of oral palladium salt is very small, but the toxicity of intravenous injection is 70 times greater than that of oral administration, but there is no report of palladium poisoning in clinic.

Extended data:

The main compound palladium dichloride (PdCl? ), sodium tetrachloropalladium (Na? PdCl？ ) and palladium tetramine dichloride. Chemical properties are inactive and stable in air and humid environment at room temperature. When heated to 800℃, a palladium oxide film was formed on the surface of palladium.

Palladium can resist the corrosion of hydrofluoric acid, phosphoric acid, perchloric acid, hydrochloric acid and sulfuric acid vapor, but it is easily soluble in aqua regia, hot sulfuric acid and concentrated nitric acid. Molten sodium hydroxide, sodium carbonate and sodium peroxide have corrosive effects on palladium. The oxidation states of palladium are +2, +3 and +4. Palladium is easy to form coordination compounds, such as k? 【PdCl？ 】、K？ 【Pd(CN)4？ Wait a minute.

Main uses:

Palladium is an indispensable key material in high-tech fields such as aerospace, aviation, navigation, weapons and nuclear energy, automobile manufacturing, etc., and it is also an investment that cannot be ignored in the international precious metals investment market.

Palladium chloride is also used for electroplating; Palladium chloride and its related chlorides are used for cyclic refining and as a source for producing pure sponge palladium by thermal decomposition.

Palladium monoxide (PdO) and palladium hydroxide [Pd(OH)] can be used as sources of palladium catalysts. Sodium tetranitrophosphate [NaPd(NO? )? ] and other double salts are used as the main components of electroplating solution.

Palladium is mainly used as a catalyst in chemistry; Palladium forms alloys with ruthenium, iridium, silver, gold and copper. , can improve the resistivity, hardness and strength of palladium, and can be used to manufacture precision resistors, jewelry, etc. The most common and best-selling alloy of palladium jewelry is palladium.

Mainly used in the manufacture of catalysts, but also used in the manufacture of dental materials, watches and surgical instruments.

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