Description

Potassium Sulfide is an inorganic salt widely utilized for its strong reducing and sulfidizing properties. This compound is essential in various industrial processes where the controlled introduction of sulfur is required. Key industries that rely on this material include chemical manufacturing, leather processing, and metallurgy for ore flotation.

Application

• Chemical Synthesis: Acts as a sulfur source and reducing agent in the production of specialty chemicals, dyes, and pigments.
• Leather Industry: Used in the unhairing and deliming stages of leather tanning processes.
• Metallurgy: Employed as a flotation agent in the concentration and separation of metal ores, particularly copper and molybdenum.
• Analytical Chemistry: Serves as a reagent in qualitative inorganic analysis for the detection of specific metal ions.
• Photography: Historically used in certain toning and developing solutions.
• Textile Processing: Applied in specific dyeing and printing operations.
• Laboratory Research: Used as a precursor or reagent in various inorganic and materials science research applications.

Basic Information

Product Name	Potassium Sulfide
CAS No.	1312-73-8
Molecular Formula	K2S
Molecular Weight	110.26 g/mol
Synonyms	Dipotassium monosulfide; Dipotassium sulfide; Potassium monosulfide; Sulfurated potash; Hepar sulfuris; Liver of sulfur; Kalium sulfuretum
EINECS	215-197-0

Quality Control

Our Potassium Sulfide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and reliability. The product is tested against established internal specifications, which typically include assay, impurity profile, and physical characteristics. A Certificate of Analysis (COA) is provided with each shipment to guarantee compliance.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry, and well-ventilated area. Keep away from strong acids and incompatible materials such as oxidizing agents. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Yellowish to red-brown lumps or fused mass
Identification (IR)	Conforms
Assay (as K2S)	≥ 95.0 %
Water Insoluble Matter	≤ 0.5 %
Sulfate (as SO4)	≤ 1.0 %
Thiosulfate (as S2O3)	≤ 2.0 %

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