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Platinum

Key Data and Description

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Platinum Compounds

Fluorides

• PtF₄: platinum (IV) fluoride, platinum tetrafluoride

Colour: yellow-brown or red

Appearance: crystalline solid

• PtF₆: platinum (VI) fluoride, platinum hexafluoride

Colour: dark red

Appearance: crystalline solid

• [PtF₅]₄: platinum (V) fluoride, platinum pentafluoride

Colour: deep red

Appearance: crystalline solid

Chlorides

• PtCl₃: platinum (II, IV) chloride, platinum trichloride

Colour: green-black

Appearance: crystalline solid

• PtCl₄.5H₂O: platinum (IV) chloride 5-water, platinum tetrachloride 5-water

Colour: red

Appearance: crystalline solid

• PtCl₄: platinum (IV) chloride, platinum tetrachloride

Colour: red-brown

Appearance: crystalline solid

• Pt₆Cl₁₂: platinum (II) chloride, platinum dichloride

Colour: olive green

Appearance: crystalline solid

Bromides

• PtBr₂: platinum (II) bromide, platinum dibromide

Colour: red-brown

Appearance: crystalline solid

• PtBr₃: platinum (II, IV) bromide, platinum tribromide

Colour: greenish black

Appearance: crystalline solid

• PtBr₄: platinum (IV) bromide, platinum tetrabromide

Colour: brownish black or dark red

Appearance: solid

Iodides

• PtI₂: platinum (II) iodide, platinum iodide

Colour: black

Appearance: crystalline solid

• PtI₃: platinum (II, IV) iodide, platinum triiodide

Colour: black

Appearance: crystalline solid

• PtI₄: platinum (IV) iodide, platinum tetraiodide

Colour: brown-black or grey-black

Appearance: crystalline solid

Oxides

• PtO: platinum (II) oxide

Colour: black or violet-black

Appearance: crystalline solid

• PtO₂: platinum dioxide, platinum (IV) oxide

Colour: black

Appearance: crystalline solid

• PtO₃: platinum (IV) oxide peroxide, platinum trioxide

Colour: golden yellow

Appearance: solid

Sulfides

• PtS: platinum (II) sulphide

Colour: grey

Appearance: crystalline solid, or green powder

• PtS₂: platinum (IV) sulphide, platinum disulphide

Colour: black or grey

Appearance: crystalline solid

Information courtesy of www.webelements.com