Arsenic acid potassium salt CAS 7784-41-0

Purity 97%+In StockPharmaceutical Standards
CAS No.7784-41-0
Molecular FormulaH2AsO4
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Arsenic acid potassium salt CAS 7784-41-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 180.03 g/mol gives Arsenic acid potassium salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Arsenic acid potassium salt (CAS 7784-41-0), a certified reference material (molecular formula H2AsO4K, MW 180.03 g/mol) for analytical method development and quality control.

Arsenic acid potassium salt (H2AsO4K) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.

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 FormulaH2AsO4 K
Molecular Weight180.03 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityHygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959

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