Rhodium

Analytical Periodic Table
Rhodium Expanded View

Rhodium Print | Periodic Table ]

Location:  Group 9, Period 5
Atomic Weight:  102.9055
Coordination Number:  6
Chemical Form in Solution:  RhCl6-3

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:  Soluble in HCl, HNO3, H2SO4 and HF aqueous matrices. May cause AgCl precipitation when mixed with Ag+. Stable with all other metals.

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.

Rh Containing Samples (Preparation & Solution):  Metal (elevated temp. with aqua regia or HCl / Cl2(gas) ); Ores (HF / H2SO4 digestion followed by aqua regia digestion); Platinum scrap (aqua regia digestion).

Atomic Spectroscopic Information:  (red text indicates severe at ~ concs.)
Technique / LineEstimated D.L.*OrderTypeInterferences
ICP-OES 233.477 nm0.04/0.004 µg/mL1ionNi, Sn, Mo, Nb, Ta
ICP-OES 249.077 nm0.06/0.006 µg/mL1ionTa, Co, Fe, W, Cr, Os
ICP-OES 343.489 nm0.06/0.006 µg/mL1atomMo, Th, Ce
ICP-MS 103 amu, monoisotopic1 pptn/aM+40Ar63Cu, 87Rb16O, 87Sr16O, 206Pb+2
*ICP-OES D.L.'s are given as radial / axial view

Rhodium (Rh) Single-Element Standard
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