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CAS 16941-12-1

CAS 16941-12-1 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 16941-12-1
CAS 16941-12-1PubChem CID 61859

Chloroplatinic acid

Chloroplatinic acid, is a reddish-brown solid. It is soluble in water and will yield a mildly acidic solution. It may cause illness from inhalation of the dust and it is irritating to skin and eyes. When heated to high temperatures it may decompose to toxic chloride fumes. It may burn, but may be difficult to ignite. It is used for manufacturing indelible ink and in electroplating processes. — CAMEO Chemicals

IUPAC name
hexachloroplatinum(2-);hydron
Molecular formula
Cl6H2Pt
Molecular weight
409.8 g/mol
Exact mass
408.790610 Da
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
1
Covalent units
3
Defined stereocentres
0

Also known as

Hexachloroplatinic acidSpeier's catalystDihydrogen hexachloroplatinateHYDROGEN HEXACHLOROPLATINATE(IV)Chloroplatinic(IV) acidPlatinum chloride (H2PtCl6)Hydrogen hexachloroplatinate(4+)Dihydrogen hexachloroplatinate(2-)
16 more reported names
Platinate(2-), hexachloro-, dihydrogenRefChem:863765Hydrogen platinum chloride (H2PtCl6)241-010-7Acid platinic chlorideHexachloroplatinic(IV) acidNa2PtCl6NSC-4958Platinic chloridePlatinic chloride (VAN)GBFHNZZOZWQQPA-UHFFFAOYSA-JNSC 4958EINECS 241-010-7UN2507hexachoroplatinic acidHexachloroplatinic(4+) acid, hydrogen-
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 16941-12-1

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How CAS 16941-12-1 is used on this site

CAS 16941-12-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 16941-12-1 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.