Potassium chloroplatinite

CAS 10025-99-7 · EC 233-050-9 · Cl4K2Pt

Also known as potassium tetrachloroplatinate(II), dipotassium tetrachloroplatinate

Handle chemistry safely

Wear gloves and eye protection, work with good ventilation, and read the supplier’s safety data sheet before use. Hazard information here is a summary, not a replacement for it. Dispose of all photographic chemistry correctly, in line with local laws and your local authority’s guidance. Never mix waste solutions, and check the supplier’s safety data sheet before disposing of anything.

Hazards

Official EU classification (harmonised under CLP Annex VI).

Signal word: Danger

Acute toxicity · Corrosive · Serious health hazard

H301 Toxic if swallowed.
H315 Causes skin irritation.
H318 Causes serious eye damage.
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317 May cause an allergic skin reaction.

Photographic uses

platinum printing

Sources

ECHA CHEM substance record: Dipotassium tetrachloroplatinate (100.030.034)
ECHA CHEM – C&L Inventory (harmonised CLP Annex VI and notified classifications) and legal obligations (chem.echa.europa.eu APIs: /api-cnl-inventory/harmonized|industry, /api-obligation-substance/v1)

Checked October 2026.