Description

Potassium Sulfate(Vi) CAS NO 7778-80-5 is a high-purity, inorganic salt widely recognized for its role as a premium source of both potassium and sulfur, two essential macronutrients. This compound is critical for industries requiring a chloride-free, low-salt-index nutrient source to optimize product performance and process efficiency. It is an indispensable raw material for manufacturers in the agricultural, pharmaceutical, and specialty chemical sectors seeking reliable quality and consistent supply.

Application

• Fertilizer Production: As a high-value, chloride-free potassium fertilizer (SOP - Sulfate of Potash) for chloride-sensitive crops like tobacco, fruits, and vegetables.
• Pharmaceutical Synthesis: Used as a reagent or potassium source in the manufacture of various active pharmaceutical ingredients (APIs) and electrolyte replenishment formulations.
• Laboratory & Analytical Chemistry: Serves as a standard, buffer component, or reagent in analytical procedures and research applications.
• Food & Beverage Industry: Employed as a nutrient supplement, pH control agent, or processing aid in food-grade applications, where applicable.
• Specialty Glass & Ceramics: Acts as a fluxing agent to lower the melting temperature and improve the properties of glass and ceramic glazes.
• Chemical Manufacturing: A key starting material or intermediate in the synthesis of other potassium compounds and specialty chemicals.

Basic Information

Product Name	Potassium Sulfate(Vi)
CAS No.	7778-80-5
Molecular Formula	K2SO4
Molecular Weight	174.26 g/mol
Synonyms	Sulfate of Potash (SOP); Potassium Sulphate; Dipotassium Sulfate; Arcanite; Sal Polychrestum; Tartarus Vitriolatus; E515
EINECS	231-915-5

Quality Control

Our Potassium Sulfate is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, heavy metal content, and other critical parameters. Certificates of Analysis (COA) confirming compliance with relevant standards such as USP, FCC, or ACS grades are provided to guarantee supply reliability and product consistency for your B2B operations.

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); keep the container tightly sealed to prevent caking due to absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (K2SO4)	≥ 99.0%
pH (5% solution)	5.5 - 8.5
Loss on Drying	≤ 1.0%
Chloride (Cl)	≤ 0.001%
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 10 ppm

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