Ruthenium [ Print | Periodic Table ]
Location: Group 8, Period 5
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. Stable with most metals and inorganic anions as the [RuCl6]2- in dilute acidic media.
Stability: 2-100 ppb levels stable for months in 1% HNO3 / LDPE container. 1-10,000 ppm solutions chemically stable for years in 10% HCl / LDPE container.
Ru Containing Samples (Preparation & Solution): Metal (fuse with KOH/KNO3 in a Ag0 crucible); Oxides (fuse with KOH / KNO3 in a Ag0 crucible); Ores (see Oxides); Alloys (see Oxides). Organics (the RuO4 is volatile and acidic oxidizing preparations should be used with caution. The preferred approach is the KOH / KNO3 fusion and dissolution of the fuseate in HCl).
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