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12658

Sigma-Aldrich

Potassium sulfate

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

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Linear Formula:
K2SO4
CAS Number:
Molecular Weight:
174.26
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

Assay

99-101%

form

solid

quality

meets analytical specification of Ph. Eur.

impurities

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

loss

≤0.5% loss on drying, 130 °C

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

anion traces

chloride (Cl-): ≤20 mg/kg

cation traces

As: ≤2 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg
Mg: ≤20 mg/kg
Na: ≤100 mg/kg

suitability

in accordance for appearance of solution

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
2041291.05153P0772
Potassium sulfate meets analytical specification of Ph. Eur., 99-101%

12658

Potassium sulfate

Essential Grade
Potassium sulfate 99.99% trace metals basis

204129

Potassium sulfate

-
Potassium sulfate for analysis EMSURE® ACS,ISO,Reag. Ph Eur

1.05153

Potassium sulfate

-
Potassium sulfate ReagentPlus®, ≥99.0%

P0772

Potassium sulfate

-
assay

99-101%

assay

99.99% trace metals basis

assay

≥99.0% (alkalimetric)

assay

≥99.0%

solubility

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

solubility

-

solubility

-

solubility

-

Quality Level

200

Quality Level

100

Quality Level

300

Quality Level

200

anion traces

chloride (Cl-): ≤20 mg/kg

anion traces

-

anion traces

chloride (Cl-): ≤0.0005%

anion traces

-

impurities

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

impurities

≤150.0 ppm Trace Metal Analysis

impurities

≤0.01% Insoluble matter

impurities

-

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Michael Thompson et al.
The Analyst, 127(12), 1666-1668 (2003-01-23)
Both the Kjeldahl and the Dumas methods for the determination of protein in foodstuffs are currently in use, but the empirical nitrogen factors used to convert the determined nitrogen content to protein content are based on the Kjeldahl method alone.
S S Lehrer et al.
Journal of structural biology, 122(1-2), 176-179 (1998-09-02)
The alpha-helical coiled-coil tropomyosin homodimer, alpha alphaTm, unfolds cooperatively with T1/2 = 47 degreesC, at neutral pH, 0.5 M NaCl. At pH 2, where each chain contains 55 positive charges, no cooperative unfolding occurs to at least 80 degreesC. The
T L Little et al.
Circulation research, 76(3), 498-504 (1995-03-01)
Dye tracers were chosen, based on net charge, chemical structure, and reactive groups, to test for the existence of and to provide novel insight into channel selectivities of junctional pathways connecting smooth muscle and endothelial cells of the arteriolar wall.
Jinyong Yan et al.
Bioresource technology, 102(7), 4755-4758 (2011-02-01)
A dual modification procedure composed of cross-linking and protein coating with K(2)SO(4) was employed to modify Geotrichum sp. lipase for catalyzing biodiesel production from waste cooking oil. Compared to single modification of protein coating with K(2)SO(4), the dual modification of
Ashley C Parker et al.
Clinical orthopaedics and related research, 469(11), 3008-3015 (2011-05-10)
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

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