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204129

Sigma-Aldrich

Potassium sulfate

99.99% trace metals basis

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Synonym(s):
Dipotassium sulfate, Monopotassium sulfate, Sulfuric acid dipotassium salt
Linear Formula:
K2SO4
CAS Number:
Molecular Weight:
174.26
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.99% trace metals basis

form

powder

impurities

≤150.0 ppm Trace Metal Analysis

SMILES string

[K+].[K+].[O-]S([O-])(=O)=O

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

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1 of 4

This Item
12658221325223492
Potassium sulfate 99.99% trace metals basis

204129

Potassium sulfate

-
Potassium sulfate meets analytical specification of Ph. Eur., 99-101%

12658

Potassium sulfate

Essential Grade
Potassium sulfate ACS reagent, ≥99.0%, powder or crystals

221325

Potassium sulfate

Essential Grade
Potassium sulfate ACS reagent, ≥99.0%, powder

223492

Potassium sulfate

Essential Grade
assay

99.99% trace metals basis

assay

99-101%

assay

≥99.0%

assay

≥99.0%

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

impurities

≤150.0 ppm Trace Metal Analysis

impurities

acidity or alkalinity, in accordance, residual solvents, complies, ≤0.001% heavy metals (as Pb)

impurities

≤0.01% insolubles, ≤5 ppm N compounds

impurities

≤0.01% insolubles, ≤5 ppm N compounds

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Iron- and nitrogen-doped carbon (Fe-N-C) materials are leading candidates to replace platinum catalysts for the oxygen reduction reaction (ORR) in fuel cells; however, their active site structures remain poorly understood. A leading postulate is that the iron-containing active sites exist
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Local drug delivery has substantial potential to prevent infections compared with systemic delivery. Although calcium sulfate (CaSO(4)) has been studied for local drug delivery and two types are commercially available, it is unknown whether they differentially release antibiotics. We determined
Xinjian Shi et al.
Nature communications, 5, 4775-4775 (2014-09-03)
Tungsten trioxide/bismuth vanadate heterojunction is one of the best pairs for solar water splitting, but its photocurrent densities are insufficient. Here we investigate the advantages of using helical nanostructures in photoelectrochemical solar water splitting. A helical tungsten trioxide array is
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BMC plant biology, 12, 161-161 (2012-09-12)
Potassium (K+) is an important nutrient ion in plant cells and plays crucial roles in many plant physiological and developmental processes. In the natural environment, K+ deficiency is a common abiotic stress that inhibits plant growth and reduces crop productivity.

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