12658
硫酸钾
meets analytical specification of Ph. Eur., 99-101%
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关于此项目
线性分子式:
K2SO4
化学文摘社编号:
分子量:
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
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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存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 12658-1KG | 04061838724243 |
| 12658-6X1KG | 04061838724250 |
| EHU126581-20UG | 04061828594580 |
| EHU126581-50UG | 04061828358601 |