Platinum (Pt)

Platinum is used in diverse catalytic applications. Heraeus offers platinum catalysts for coating of supported catalysts.

Platinum is widely used in petrochemistry for the so-called reforming (“Platforming”). Also, several petrochemical isomerization and cracking processes, as well as certain oxidation reactions run on supported platinum catalysts, too. The reverse reactions are also feasible, e.g. the reduction of benzene to cyclohexane. Platinum is also catalytically active to hydrogenations in synthetic chemistry for the reduction of functional groups – e.g. C=C’s, C=O’s, C=N’s – without hydrogenolysis, and of aromatic nitro compounds to aniline derivatives. A specific example is the reductive synthesis of hydroxylamine (NH2OH) from NO with a Pt catalyst. Furthermore, to "Gas to Liquid" catalysts platinum can be applied as co-catalyst as well as platinum catalysts serve to remove impurities from gases (e.g. carbon monoxide, CO, from hydrogen).

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Compound CAS Number Formula Metal ­Cont. ­approx. Color
cis-Diamminedichloroplatinum(II) * 15663-27-1 cis-[PtCl2(NH3)2] 65 % yellow
Diamminedinitritoplatinum(II) ammoniacal solution 14286-02-3 cis-[Pt(NO2)2(NH3)2] up to 5 % yellow
Diamminedinitritoplatinum(II) nitric-acid solution 14286-02-3 cis-[Pt(NO2)2(NH3)2] 10 % yellow
Diamminedinitritoplatinum(II) suspension
14286-02-3 cis-[Pt(NO2)2(NH3)2] up to 10 % beige
Dihydrogen hexachloroplatinate(IV) hydrate “Chloroplatinic Acid“, “CPA” 26023-84-7 H2[PtCl6] · n H2O 40 % orange
Dihydrogen hexachloroplatinate(IV) solution “Chloroplatinic Acid”, “CPA” 16941-12-1 H2[PtCl6] up to 32 % orange
Dihydrogen hexahydroxoplatinate(IV) “Hydroxoplatinic Acid” 51850-20-5 H2[Pt(OH)6] 56 % yellow
2-Hydroxyethylammonium hexahydroxoplatinate(IV) solution “Pt EA” 68133-90-4 (HOC2H4NH3)2[Pt(OH)6] up to 12 % pale yellow
Platinum(II) chloride 10025-65-7 PtCl2 73 % light brown
Platinum(IV) chloride 13454-96-1 PtCl4 58 % reddish brown
Platinum(II) nitrate 18496-40-7 Pt(NO3)2 58 % orange brown
Platinum(II) nitrate solution 18496-40-7 Pt(NO3)2 up to 30 % orange brown
Platinum sulfite solution 61420-92-6 "Pt(SO3)x" up to 10 % yellow
Potassium hexachloroplatinate(IV) 16921-30-5 K2[PtCl6] 40 % yellow
Potassium tetrachloroplatinate(II) 10025-99-7 K2[PtCl4] 47 % red
Sodium tetrachloroplatinate(II) solution 10026-00-3 Na2[PtCl4] up to 8 % red
Tetraammineplatinum(II) hydroxide solution “TPH Pt” 38201-97-7 [Pt(NH3)4](OH)2 up to 10 % colorless
Tetraammineplatinum(II) nitrate solution “TPN Pt” 20634-12-2 [Pt(NH3)4](NO3)2 3 % pale yellow

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