Description

Potassium Selenite is an inorganic salt and a vital source of the essential trace element selenium. This compound is crucial for applications requiring a stable, water-soluble form of selenium, offering superior bioavailability and consistent performance. It is primarily utilized by manufacturers in the nutritional supplement, pharmaceutical, and agricultural industries to formulate products that address selenium deficiency and support critical biochemical functions.

Application

• Nutritional Supplements & Fortification: A key ingredient in vitamin-mineral complexes, tablets, and liquid formulations to prevent and correct selenium deficiency.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) where selenium is a required component of the molecular structure.
• Animal Feed Additives: Incorporated into premixes to ensure optimal selenium levels for livestock health, growth, and reproduction.
• Biochemical & Cell Culture Research: Serves as a defined selenium source in cell culture media and various biochemical assay systems.
• Glass Manufacturing: Acts as a decolorizing agent to neutralize the green tint caused by iron impurities in glass batches.
• Electroplating & Surface Treatment: Used in specific electroplating baths for depositing selenium-containing alloys.

Basic Information

Product Name	Potassium Selenite
CAS No.	10431-47-7
Molecular Formula	K2SeO3
Molecular Weight	221.15 g/mol
Synonyms	Selenious Acid, Dipotassium Salt; Dipotassium Selenite; Potassium Selenite(IV); Selenite of Potash; K2SeO3; EINECS 233-909-1
EINECS	233-909-1

Quality Control

Our Potassium Selenite is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and heavy metal content. Certificates of Analysis (COA) documenting assay, impurity profiles, and other critical parameters are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (K2SeO3)	≥ 98.0 %
Solubility (in water)	Clear, colorless solution
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Selenium (Se) Content	35.0 - 36.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.