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1.05152

Supelco

Potassium sulfate

99.999 Suprapur®

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Synonym(s):
Potassium sulfate, Potassium pyrosulfate
Empirical Formula (Hill Notation):
K2O4S
CAS Number:
Molecular Weight:
174.26
MDL number:
EC Index Number:
231-915-5

grade

for inorganic trace analysis

Quality Level

Assay

99.999%

form

solid

potency

6600 mg/kg LD50, oral (Rat)

pH

5.5-8.5 (20 °C, 50 g/L in H2O)

bp

1689 °C/1013 hPa

mp

1069 °C

solubility

111 g/L

density

2.66 g/cm3 at 20 °C

bulk density

800 kg/m3

storage temp.

2-30°C

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
1.051511.0515060528
Potassium sulfate 99.999 Suprapur®

Supelco

1.05152

Potassium sulfate

-
Potassium sulfate powder, EMPROVE® ESSENTIAL, Ph. Eur., BP, JP, E 515

SAFC

1.05151

Potassium sulfate

-
Potassium sulfate crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, JP

SAFC

1.05150

Potassium sulfate

-
Potassium sulfate BioUltra, ≥99.0% (AT)

Sigma-Aldrich

60528

Potassium sulfate

Premium Grade
assay

99.999%

assay

-

assay

-

assay

≥99.0% (AT)

form

solid

form

fine powder

form

coarse powder, crystalline

form

solid

pH

5.5-8.5 (20 °C, 50 g/L in H2O)

pH

5.5-8.5 (20 °C, 50 g/L in H2O)

pH

5.5-8.5 (20 °C, 50 g/L in H2O)

pH

5.5-7.5 (25 °C, 0.5 M in H2O)

mp

1069 °C

mp

1069 °C

mp

1069 °C

mp

-

solubility

111 g/L

solubility

111 g/L

solubility

-

solubility

H2O: 0.5 M at 20 °C, clear, colorless

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (alkalimetric): ≥ 99.0
Chloride (Cl): ≤ 5 ppm
Total nitrogen (N): ≤ 5.0 ppm
Al (Aluminium): ≤ 0.050 ppm
Ba (Barium): ≤ 1.0 ppm
Bi (Bismuth): ≤ 0.01 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.020 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.020 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.050 ppm
Hg (Mercury): ≤ 0.05 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 0.2 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.020 ppm
Na (Sodium): ≤ 5.0 ppm
Ni (Nickel): ≤ 0.020 ppm
Pb (Lead): ≤ 0.050 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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