Platina yellow
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Description
A yellow crystalline powder of potassium chloroplatinate. Platina yellow was sold for a short time in the late 18th and early 19th century as an artists pigment. It was initially called lemon yellow. Potassium chloroplatinate is now used in photography.
Synonyms and Related Terms
lemon yellow; potassium chloroplatinate; platinum (IV) potassium chloride; potassium platinichloride
Risks
- Toxic by ingestion and inhalation.
- Contact may cause irritation or allergic reactions.
- Fisher Scientific: MSDS
Physical and Chemical Properties
Slightly soluble in water. Insoluble in ethanol.
| Composition | K2PtCl6 |
|---|---|
| CAS | 16921-30-5 |
| Melting Point | 250 C (dec) |
| Density | 3.499 g/ml |
| Molecular Weight | mol. wt. = 485.9946 |
| Refractive Index | 1.827 |
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- R.D. Harley, Artists' Pigments c. 1600-1835, Butterworth Scientific, London, 1982
- CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.827