Platine
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<h2>Caractéristiques du Platine</h2> | <h2>Caractéristiques du Platine</h2> | ||
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<strong>Prix du platin</strong> : | <strong>Prix du platin</strong> : | ||
<strong>Densité du platine</strong> : 21 090 kilos au mètre cube | <strong>Densité du platine</strong> : 21 090 kilos au mètre cube | ||
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<strong>Cours du platine</strong> : à venir... | <strong>Cours du platine</strong> : à venir... | ||
| - | + | <h2>Alchimie du platine</h2> | |
| - | + | Le platine ne se dissout que dans l'eau régale.<br> | |
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*This metal is insoluble in hydrochloric and nitric acid, but does dissolve in the mixture known as aqua regia (forming chloroplatinic acid). Common oxidation states of platinum include +2, and +4. The +1 and +3 oxidation states are less common, and are often stabilized by metal bonding in bimetallic (or polymetallic) species.The gold is removed from this solution as a precipitate by treatment with iron(II) chloride (FeCl2). The platinum is precipitated out as impure (NH4)2PtCl6 on treatment with NH4Cl, leaving H2PtCl4 in solution. | *This metal is insoluble in hydrochloric and nitric acid, but does dissolve in the mixture known as aqua regia (forming chloroplatinic acid). Common oxidation states of platinum include +2, and +4. The +1 and +3 oxidation states are less common, and are often stabilized by metal bonding in bimetallic (or polymetallic) species.The gold is removed from this solution as a precipitate by treatment with iron(II) chloride (FeCl2). The platinum is precipitated out as impure (NH4)2PtCl6 on treatment with NH4Cl, leaving H2PtCl4 in solution. | ||
