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12658

Sigma-Aldrich

Potassium sulfate

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

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About This Item

Formula condensata:
K2SO4
Numero CAS:
7778-80-5
Peso molecolare:
174.26
Numero CE:
231-915-5
Numero MDL:
MFCD00011388
Codice UNSPSC:
12352302
ID PubChem:
329749798

Grado

for analytical purposes

Saggio

99-101%

Stato

solid

Qualità

meets analytical specification of Ph. Eur.

Impurezze

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

Perdita

≤0.5% loss on drying, 130 °C

Solubilità

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

Anioni in tracce

chloride (Cl-): ≤20 mg/kg

Cationi in tracce

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

Compatibilità

in accordance for appearance of solution

Stringa SMILE

[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
OTYBMLCTZGSZBG-UHFFFAOYSA-L

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Categorie correlate

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
BCCG4611
BCCF0323
BCCF0322
BCCB6765
BCBX4883

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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.
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
Xinjian Shi et al.
Nature communications, 5, 4775-4775 (2014-09-03)
Tungsten trioxide/bismuth vanadate heterojunction is one of the best pairs for solar water splitting, but its photocurrent densities are insufficient. Here we investigate the advantages of using helical nanostructures in photoelectrochemical solar water splitting. A helical tungsten trioxide array is
Jingjing Zheng et al.
Bioresource technology, 110, 224-231 (2012-02-15)
This study investigated the preparation and characteristics of protein-coated microcrystals (PCMCs) from Pseudomonas cepacia lipase (PS) and K(2)SO(4), and their application in biodiesel synthesis, via single factorial experiments and response surface methodology (RSM), the optimized PCMC-PS exhibited high activity and
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