potassium sulfite CAS 10117-38-1

Purity 97%+In StockPharmaceutical Standards
CAS No.10117-38-1
Molecular FormulaO3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

potassium sulfite CAS 10117-38-1 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including potassium sulfite.

potassium sulfite (CAS 10117-38-1), molecular formula O3SK and molecular weight 119.16 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, potassium sulfite is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 119.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaO3S 2*K
Molecular Weight119.16 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
Sulfur Atoms1

Related potassium Standards

Recommended Standards

Why CATO?