Location:  Group 10, Period 6
Atomic Weight:  195.08
Coordination Number:  6
Chemical Form in Solution:  Pt(Cl)₆^2-

Storage & Handling:  Keep tightly sealed when not in use. Store and use at 20 ± 4°C. Do not pipet from container. Do not return portions removed for pipetting to container.

Chemical Compatibility:  Stable in HCl and HNO₃, as the chloride complex. Avoid basic media. Stable with most metals and inorganic anions in acidic media.

Stability:  2-10 ppb Pt is stable for 2 months in 1% HNO₃ / LDPE container. 100 ppb is stable for 5 months in 1% HNO₃ / LDPE container. 1-10,000 ppm solutions chemically stable for years in 10 % HCl / LDPE container.

Pt Containing Samples (Preparation & Solution):  Metal (aqua regia); Oxides (soluble in HCl); Ores (dissolve in HCl / HNO₃).