Chloroplatinic acid is one of the important sources of platinum catalysts and plays an indispensable role in organic synthesis and catalytic chemistry. Due to its good catalytic properties and potential for application in industry, chloroplatinic acid remains one of the focuses of chemical research. Appropriate safety precautions are an important part of handling this compound.

Chemical properties

Molecular formula: [H_2[PtCl_6]]

Molecular weight: 339.83 g/mol

CAS: 18497-13-7

Platinum content wt%: 37.0

Melting point: 60℃

Appearance: Chloroplatinic acid is an orange or amber crystal that is very soluble in water.

Solubility: Highly soluble in water, alcohols and some polar solvents to form yellow or brown solutions.

Stability: Stable in dry and appropriate conditions, but may be reduced to platinum metal in a strong reducing environment.

Preparation method

Chloroplatinic acid is usually prepared by the following methods:

From platinum metal or platinum salts: Chloroplatinic acid can be obtained by reacting platinum metal with concentrated hydrochloric acid and an oxidant (such as chlorine). For example, the reaction is as follows:

[2\text{Pt} + 6\text{HCl} + \text{Cl}_2 \rightarrow 2\text{H}_2[\text{PtCl}_6]

]

From hydroplatinate: It can also be prepared by dissolving hydroplatinate ([H_2[Pt(OH)_6]]) and reacting it with hydrogen chloride.

Catalytic properties

Chloroplatinic acid is an important catalyst widely used in various chemical reactions, including:

Organic synthesis: used as a catalyst for certain hydrogenation reactions and chlorination reactions.

Cross-coupling reaction: often used for cross-coupling of aromatic halides in organic synthesis.

Oxidation reaction: used as a catalyst to promote the oxidation process of certain organic compounds.

Application areas

Chemical industry: used to catalyze hydrogenation, chlorination and other reactions in the production of chemicals.

Material science: as a catalyst, it is of great significance in the research and development of catalysts, especially in the field related to hydrogen energy.

Analytical chemistry: used in certain analytical methods, such as electrochemical analysis.

Biomedicine: Chloroplatinic acid and other platinum compounds have shown potential uses in the research of anti-tumor drugs.