Erbium sulfate hydrate, 99.90% CAS 10031-52-4

Purity 97%+In StockPharmaceutical Standards
CAS No.10031-52-4
Molecular FormulaEr
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Erbium sulfate hydrate, 99.90% CAS 10031-52-4 chemical structure

Description

Erbium sulfate hydrate, 99.90% (CAS 10031-52-4) is a high-purity analytical reference standard with the molecular formula ErH2O4SH2O and a molecular weight of 283.35 g/mol.

Structurally, Erbium sulfate hydrate, 99.90% (ErH2O4SH2O) contains a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 283.35 g/mol, it falls into the medium-molecular-weight range.

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

Molecular FormulaEr H2O4S H2O
Molecular Weight283.35 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959
Sulfur Atoms1

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