Ruthenium

Analytical Periodic Table
Ruthenium Expanded View

Ruthenium Print | Periodic Table ]

Location:  Group 8, Period 5
Atomic Weight:  101.07
Coordination Number:  4, 5, 6, 8
Chemical Form in Solution:  [RuCl6]2-
(coordination numbers in green are observed less frequently)

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).

Atomic Spectroscopic Information:
Technique / LineEstimated D.L.*OrderTypeInterferences
ICP-OES 240.272 nm0.03/.002 µg/mL1ionFe
ICP-MS 101 amu3 pptn/aM+40Ar61Ni, 64Ni37Cl, 85Rb16O, 202Hg2+
*ICP-OES D.L.'s are given as radial / axial view

Ruthenium (Ru) Single-Element Standard
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