Chloroplatinic acid hydrate

~38% Pt basis

Hydrogen hexachloroplatinate(IV) hydrate, Platinic chloride hydrate, Hexachloroplatinic(IV) acid hydrate
Linear Formula:
H2PtCl6 · xH2O
CAS Number:
Molecular Weight:
409.81 (anhydrous basis)
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


~38% Pt basis

reaction suitability

core: platinum
reagent type: catalyst


60 °C (lit.)


2.43 g/mL at 25 °C (lit.)

storage temp.


SMILES string




InChI key


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Catalyst for:
  • Reduction of carboxamides with hydrosilanes
  • Hydrosilylation of siloxanes
  • Dehydrocoupling polycondensation reactions
  • Hydrolysis of trichlorosilanes


1, 5 g in glass bottle

Storage and Stability

1. Hygroscopic material, always handle in a glove bag or a glove box filled with dry inert gas
2. Recommended for one time use to prevent water absorption and degradation. If necessary, once opened, repack and seal under dry inert gas.
3. Store with care. Prevent from light. Always store in well-sealed containers in a dry inert atmosphere. Recommended to store containers in a secondary desiccator with desiccant in a dry inert atmosphere.
Packaged under dry Nitrogen gas

Other Notes

Catalyst for the hydrosilylation of olefins

Signal Word


Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 2507 8 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
J.L. Speier
Adv. Organomet. Chem., 17, 407-407 (1979)
Lewis, L. N.; Sy, K. G. et al.
Organometallics, 10, 3750-3750 (1991)
Toal, S. J.; et al.
Organometallics, 24, 3081-3081 (2005)
Alan R Bassindale et al.
Chemical communications (Cambridge, England), (12), 1382-1383 (2003-07-05)
Hexasilsesquioxane cages (T6) have been prepared from a range of alkyl and aryl trichlorosilanes using a "non aqueous" hydrolysis with dimethyl sulfoxide.
Shiori Hanada et al.
Journal of the American Chemical Society, 131(41), 15032-15040 (2009-09-30)
The synergetic effect of two Si-H groups leads to efficient reduction of carboxamides to amines by platinum catalysts under mild conditions. The rate of the reaction is dependent on the distance of two Si-H groups; 1,1,3,3-tetramethyldisiloxane (TMDS) and 1,2-bis(dimethylsilyl)benzene are...

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