gold trichloride solution CAS 16903-35-8

Description

The occurrence of gold trichloride solution is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

gold trichloride solution (CAS 16903-35-8), molecular formula HAuCl4 and molecular weight 339.79 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to chlorine substitution, gold trichloride solution is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 339.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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