Potassium sulfate

SIGMA/60528 - BioUltra, ≥99.0% (AT)

Synonym: Dipotassium sulfate; Potassium sulphate; Sulphate of potash

CAS Number: 7778-80-5
Empirical Formula (Hill Notation): K₂O₄S
Molecular Weight: 174.26
EC Number: 231-915-5
MDL Number: MFCD00011388
Linear Formula: K₂SO₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-60528-250G	250 g	$133.00 1/EA	Add To Favorites
45-60528-1KG	1 kg	$436.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

λ	0.5 M in H₂O
anion traces	chloride (Cl^-): ≤5 mg/kg
	phosphate (PO₄^3-): ≤10 mg/kg
assay	≥99.0% (AT)
cation traces	Al: ≤5 mg/kg
	As: ≤0.1 mg/kg
	Ba: ≤5 mg/kg
	Bi: ≤5 mg/kg
	Ca: ≤50 mg/kg
	Cd: ≤5 mg/kg
	Co: ≤5 mg/kg
	Cr: ≤5 mg/kg
	Cu: ≤5 mg/kg
	Fe: ≤5 mg/kg
	Li: ≤5 mg/kg
	Mg: ≤20 mg/kg
	Mn: ≤5 mg/kg
	Mo: ≤5 mg/kg
	Na: ≤50 mg/kg
	Ni: ≤5 mg/kg
	Pb: ≤5 mg/kg
	Sr: ≤50 mg/kg
	Zn: ≤5 mg/kg
form	solid
grade	reagent grade
impurities	insoluble matter, passes filter test
	≤0.0005% total nitrogen (N)
InChI	1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChI key	OTYBMLCTZGSZBG-UHFFFAOYSA-L
pH	5.5-7.5 (25 °C, 0.5 M in H₂O)
product line	BioUltra
Quality Level	200
SMILES string	[K+].[K+].[O-]S([O-])(=O)=O
solubility	H₂O: 0.5 M at 20 °C, clear, colorless
UV absorption	λ: 260 nm A_max: 0.01
	λ: 280 nm A_max: 0.01

Application:

Foliar applied potassium nanoparticles (K-NPs) and potassium sulfate on growth, physiological, and phytochemical parameters in Melissa officinalis L. under salt stress.: This investigation assesses the effectiveness of potassium sulfate in alleviating salt stress in plants, focusing on its role in enhancing growth and stress tolerance. The study provides valuable data for improving crop resilience to salinity, a growing issue in global agriculture (Nanehkaran FM et al., 2024 ).

Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits.: Examining the role of potassium sulfate in grapevine nutrition, this research elucidates its impact on the metabolic pathways involved in sugar and organic acid production. The outcomes are significant for viticulture, offering strategies to enhance fruit quality and vine health (Wang J et al., 2024 ).

The combination of chemical fertilizer affected the control efficacy against root-knot nematode and environmental behavior of abamectin in soil.: This study investigates how potassium sulfate, when used in conjunction with other fertilizers, influences the efficacy of pesticides and the soil′s environmental dynamics. The findings are crucial for developing integrated pest management strategies that are environmentally sustainable (Jiang J et al., 2024 ).

Other Notes:

Component of Pseudomonas Selective Agar Base, and Pseudomonas Agar P Base.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥99.0% (AT)
UNSPSC	12352302

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