• Product Name:CAS 7778-80-5 Potassium Sulphate Sulphate Of Potash SOP K2SO4 Potassium Sulfate Fertilizer
  • Molecular Formula:K2SO4
  • Purity:99%
  • Molecular Weight:
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Product Details;

CasNo: 7778-80-5

Molecular Formula: K2SO4

Appearance: White Crystalline Powder

Delivery Time: Within 3 working days

Throughput: 3000|Metric Ton|Month

Purity: 99%

CAS 7778-80-5 Potassium Sulphate Sulphate Of Potash SOP K2SO4 Potassium Sulfate Fertilizer

Product Description

Potassium sulfate, also known as sulphate of potash (SOP), is an inorganic compound with the chemical formula K2SO4. It is a commonly used fertilizer and has various industrial applications.



  • Chemical Name: Potassium sulfate
  • Molecular Formula: K2SO4
  • Molecular Weight: 174.26 g/mol
  • Appearance: Potassium sulfate is typically found as a white crystalline powder or granules.
  • Solubility: It is highly soluble in water.

Technical Data Sheet:

  • Purity: Potassium sulfate is commercially available in different purity grades, typically ranging from 95% to 99%.
  • Melting Point: The compound has a melting point of around 1069°C.
  • Density: The density of potassium sulfate is approximately 2.66 g/cm³.


  • Essential Plant Nutrient: Potassium sulfate is a vital source of potassium, an essential macronutrient required by plants for their growth and development. It provides potassium in a form readily available for plant uptake.
  • Low Chloride Content: Potassium sulfate has a low chloride content compared to other potassium fertilizers, which makes it suitable for chloride-sensitive crops and in situations where chloride buildup in soils needs to be avoided.
  • Neutral pH: It has a neutral pH, which minimizes the risk of soil acidification or alkalization when used as a fertilizer.
  • High Solubility: Potassium sulfate has high solubility in water, facilitating its application through irrigation systems or as a foliar spray.


  • Fertilizer: Potassium sulfate is primarily used as a fertilizer in agriculture to supply potassium to plants. It is particularly beneficial for chloride-sensitive crops such as fruits, vegetables, tobacco, and certain tree crops. It can be applied directly to the soil or used as a component in mixed fertilizers.
  • Industrial Applications: Potassium sulfate finds application in various industrial processes. It is used in the production of glass, dyes, pharmaceuticals, and potassium alum (used in water treatment, food processing, and cosmetic industries).
  • Chemical Industry: It serves as a raw material for the production of other potassium compounds, such as potassium carbonate and potassium hydroxide.
  • Laboratory and Research: Potassium sulfate is used in laboratories for various purposes, including analytical chemistry, solution preparation, and as a reagent in specific reactions.

Packaging 1kg-15kg packing 2 PE bag inside + 1 foil bag outside in carton
25kg-50kg packing 2 PE bag inside + 1 foil bag outside in drum
Other packing Customized packing
Drum Size D38cm*H60cm or customized, 25 kg/ drum
Shipping 1-50kg International Express Fast and convenient Door to Door
50-500kg Air Transportation Fast and cheap To Air Port
Above 500kg Sea Transportation Cheap and convenient To Port




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