K2SO4.jpg K2SO4.jpg

Potassium sulfate (2:1); (Dipotassium sulfate)

CAS Registry Number (CASRN):

7778-80-5 ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,


Potassium sulfate (2:1); (Dipotassium sulfate) ,


K2SO4 ,

CAS Registry Number (CASRN):

7778-80-5 ,

SAX Number:

1K573LC5TV ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,

p to m:

7.12225 ,


2 ,

specific gravity:

2.66 ,

state at 25 °C:

S ,

Molar mass (g/mol):

174.259 ,

Density (g/cm3):

2.66 ,

Melting point (°C):

۱٬۰۶۹ ,

Boiling point (°C):

‎1689 ,

Acidity (pKa):

7 ,

solubility in water (g/100g):

111 ,


Potassium sulfate

Potassium Sulfate Potassium fertilizer is commonly added to improve the yield and quality of plants growing in soils that are lacking an adequate supply of this essential nutrient. Most fertilizer K comes from ancient salt deposits located throughout the world. The word “potash” is a general term that most frequently refers to potassium chloride (KCl), but it also applies to all other K-containing fertilizers, such as potassium sulfate (K2SO4, commonly referred to as sulfate of potash or SOP).

Potassium Sulfate is a very important product. It's used to supply potassium. Conventional agriculture, for the most part, supplies potassium with potash. We don't handle that because it has chlorides. It's potassium chloride which is very detrimental to soil biology.

But potassium sulfate provides not only 50 units of potassium, it also has 17 units of sulfur

One of the benefits of potassium sulfate is that it's not an extremely high pH fertilizer product.

Potassium sulfate, because of the sulfate actually, will not push the soil ph. It's more of a neutral pH, so it's quite superior just from the aspect of the ph.

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