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Merck
CN

12658

Potassium sulfate

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

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About This Item

Linear Formula:
K2SO4
CAS Number:
Molecular Weight:
174.26
UNSPSC Code:
12352302
PubChem Substance ID:
EC Number:
231-915-5
MDL number:
Assay:
99-101%
Form:
solid
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
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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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Storage Class

11 - 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.
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.
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



Global Trade Item Number

SKUGTIN
12658-1KG04061838724243
12658-6X1KG04061838724250
EHU126581-20UG04061828594580
EHU126581-50UG04061828358601