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60528

Sigma-Aldrich

Potassium sulfate

BioUltra, ≥99.0% (AT)

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Synonym(s):
Dipotassium sulfate, Potassium sulphate, Sulphate of potash
Linear Formula:
K2SO4
CAS Number:
Molecular Weight:
174.26
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.26

product line

BioUltra

Quality Level

Assay

≥99.0% (AT)

form

solid

impurities

insoluble matter, passes filter test
≤0.0005% total nitrogen (N)

pH

5.5-7.5 (25 °C, 0.5 M in H2O)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤5 mg/kg
phosphate (PO43-): ≤10 mg/kg

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

λ

0.5 M in H2O

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

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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This Item
P9458P077212658
Potassium sulfate BioUltra, ≥99.0% (AT)

60528

Potassium sulfate

Premium Grade
Potassium sulfate BioXtra, ≥99.0%

P9458

Potassium sulfate

Premium Grade
Potassium sulfate ReagentPlus®, ≥99.0%

P0772

Potassium sulfate

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

12658

Potassium sulfate

Essential Grade
assay

≥99.0% (AT)

assay

≥99.0%

assay

≥99.0%

assay

99-101%

solubility

H2O: 0.5 M at 20 °C, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

boiling water: soluble 1 gm in 4 ml, glycerol: soluble 1 gm in 75 ml, water: soluble 1 gm in 8.3 ml, alcohol: insoluble

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

anion traces

chloride (Cl-): ≤5 mg/kg, phosphate (PO43-): ≤10 mg/kg

anion traces

chloride (Cl-): ≤0.001%

anion traces

-

anion traces

chloride (Cl-): ≤20 mg/kg

pH

5.5-7.5 (25 °C, 0.5 M in H2O)

pH

-

pH

-

pH

-

Other Notes

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

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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