206032 Sigma-Aldrich

Platinum(IV) oxide

Green Alternative

surface area ≥60 m2/g

Synonym: Adam’s catalyst, NSC 402624, Platinic oxide, Platinum dioxide



Related Categories 12 Principles Aligned Products, Catalysis, Catalysis and Inorganic Chemistry, Chemical Synthesis, Development Quantities for Research,
Quality Level   200
composition   Pt, 81-83%
reaction suitability   core: platinum
  reagent type: catalyst
greener alternative product characteristics   Designing Safer Chemicals
Learn more about the Principles of Green Chemistry.
surface area   ≥60 m2/g
mp   450 °C (lit.)
greener alternative category   Aligned
SMILES string   O=[Pt]=O
InChI   1S/2O.Pt


General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.


Catalyst for hydrogenation of various functional groups with minimal hydrogenolysis problems; used as dehydrogenation catalyst; used for selective oxidation of primary alcohols.

Catalyst for:
• Hydrohydrazination reactions
• Oxidation of sugars
• Low-temperature oxidation of carbon monoxide
• Oxygen reduction reaction
• Hydrogenation reactions
• Hydrogenolysis of the cyclopropyl group into an isopropyl group
• Hydroxycyclopropanation reactions

Platinum(IV) oxide has been used for the reduction of citernyl bromide to form (S)-3,7-dimethyloctylbromide.


1, 5, 50 g in glass bottle

250 mg in glass bottle

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
UN 1479 5.1 / PGII
WGK Germany 


Certificate of Analysis (COA)

Please Enter a Lot Number

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
In which solvents is Product 206032, Platinum (IV) oxide, soluble?
Per the the chemicals encyclopedia published by the Royal Society of Chemistry, 13th Edition, when freshly precipitated, Platinum(IV) Oxide is soluble in concentrated acids and dilute phosphoric acid, especially when warmed. It is easily soluble in dilute solutions of potassium hydroxide.
Is Product 206032, Platinum (IV) oxide, water soluble?
It is insoluble in water.
How can Product 206032, Platinum (IV) oxide, be used as a catalyst?
Platinum(IV) oxide can be used as a catalyst in hydrogenations. The actual catalyst is platinum black which is formed in situ by reduction of the PtO2 by the hydrogen used for the hydrogenation. It is especially useful for reduction at room temperature and hydrogen pressures up to 4 atmospheres. It is suitable for the reduction of double and triple bonds, aromatic nuclei, carbonyl groups, nitro groups, and nitriles.
Are there any safety concerns with Product 206032, Platinum (IV) oxide?
After exposure to hydrogen, the resulting platinum black can be pyrophoric. Therefore, it should not be allowed to dry and all exposure to oxygen should be minimized.
Can the Platinum be recovered from Product 206032, Platinum (IV) oxide?
Internet sources do indicate that Platinum can be recovered from spent catalyst by conversion to ammonium chloroplatinate using aqua regia followed by ammonia. However, we do have a process for doing so.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Protocols & Articles


Oxidizing and Reducing Agents

Oxidation and reduction reactions are some of the most common transformations encountered in organic synthesis, and are some of the organic chemist’s most powerful tools for creating novel products. ...
ChemFiles Volume 1 Article 3
Keywords: Organic synthesis, Oxidations, Reductions

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