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Sigma-Aldrich

Kaliumsulfat

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

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About This Item

Lineare Formel:
K2SO4
CAS-Nummer:
7778-80-5
Molekulargewicht:
174.26
EG-Nummer:
231-915-5
MDL-Nummer:
MFCD00011388
UNSPSC-Code:
12352302
PubChem Substanz-ID:
329749798

Assay

99-101%

Form

solid

Qualität

meets analytical specification of Ph. Eur.

Verunreinigungen

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

Verlust

≤0.5% loss on drying, 130 °C

Löslichkeit

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

Anionenspuren

chloride (Cl-): ≤20 mg/kg

Kationenspuren

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

Eignung

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

InChIKey

OTYBMLCTZGSZBG-UHFFFAOYSA-L

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Verwandte Kategorien

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

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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
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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