Potassium sulfate (SOP / Stand)

Potassium sulfate (SOP / Stand) specification
Item	Specs / Unit	Test Method / Ref.
Potassium as K2O	50 Min / %	Flam Photometric / ES 2199/2018
Sulfur (S)	17 Min / %	ICP / In house
Chloride (Cl)	2.5 Max / %	Volumetric / ES2199/2018 Volhard test method
pH (1 g/ 100 ml H2O)	2.45-3	pH meter / Internal
Acidity as H2SO4	5.5 Max	Volumetric / Acid-Base titration
Moisture Content	0.3 Max / %	Oven / AOAC 950.01
Insoluble Matter	2.5 Max / %	Gravimetric / Internal
Bulk Density	1.35 -1.6 / gm/cm3	Loos pour / IFDC S-111
Arsenic (As)	5 Max / ppm	ICP / AOAC 2006.03
Cadmium (Cd)	3 Max / ppm	ICP / AOAC 2006.03
Lead (Pb)	5 Max / ppm	ICP / AOAC 2006.03
Hexavalent Chromium (Cr)	2 Max / ppm	ICP / EPA 8023
Total (Cr)	10 Max / ppm	ICP / AOAC 2006.03
Mercury (Hg)	0.2 Max / ppm	ICP / EPA 6010 B
Nickel (Ni)	50 Max / ppm	ICP / AOAC 2006.03
Biuret	12 Max / g/kg	Spectrophotometer / In house
Perchlorate	10 Max / ppm	Spectrophotometer / In house
Cupper (Cu)	50 Max / ppm	ICP / EPA 6010 B
Zinc (Zn)	50 Max / ppm	ICP / EPA 6010 B

Item	Specs / Unit	Ref.
Particle Size > 2.0 mm	1 Max / %	dry Sieve
Particle Size > 1.0 mm	5 Max / %	dry Sieve
Particle Size > 0.5 mm	30 Max / %	dry Sieve
Particle Size > 0.1 mm	70 Min / %	dry Sieve

The above quality parameters and values as for reference only. Please contact us for the most recent technical Data Sheet (TDS) related to this product.

Potassium sulfate is Suitable to be used for fruit trees orchards before planting or during winter service to feed all kinds of crops especially during fruit stage to increase fruit size and improve taste, firmness and shelf-life. Standard formula takes longer time to be completely dissolved in soil compared to soluble-SOP, which makes potassium more available for plants for long time and increases K-use efficiency. Enhances tolerance of plants against environmental and biotic stresses. Rich in Sulfur, which is an important element for some oil crops such as onion and garlic and increases the availability of phosphorus and micro elements to be used in soil.

25 kg bags with/without pallets or big bags