221325
硫酸钾
ACS reagent, ≥99.0%, powder or crystals
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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
NACRES:
NB.24
PubChem Substance ID:
EC Number:
231-915-5
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals
Solubility:
water: soluble (120 g/l)
产品名称
硫酸钾, ACS reagent, ≥99.0%, powder or crystals
InChI key
OTYBMLCTZGSZBG-UHFFFAOYSA-L
InChI
1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
SMILES string
[K+].[K+].[O-]S([O-])(=O)=O
grade
ACS reagent
assay
≥99.0%
form
powder or crystals
impurities
≤0.01% insolubles
≤5 ppm N compounds
pH
5.5-5.8 (25 °C, 5%)
solubility
water: soluble (120 g/l)
anion traces
chloride (Cl-): ≤0.001%
cation traces
Ca: ≤0.01%
Fe: ≤5 ppm
Mg: ≤0.005%
Na: ≤0.02%
heavy metals: ≤5 ppm (by ICP)
Quality Level
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Application
硫酸钾可用于通过二苯并-18-冠-6 磺化制备 4′-二苯并-18-冠-6-磺酸。
General description
硫酸钾是一种常用于肥料的水溶性无机盐。通过磷石膏和氯化钾反应可制备这一物质。 K2SO4与硫酸铝和二氧化硅一起加热，可形成针状晶粒。其土壤应用已证明可将水稻植株的古铜叶枯病降至最低。
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Conversion of phosphogypsum to potassium sulfate.
Aagli A, et al.
Journal of Thermal Analysis and Calorimetry, 82(2), 395-399 (2005)
Rice bronzing in Nigeria caused by nutrient imbalances and its control by potassium sulfate application.
Yamauchi M.
Plant and Soil, 117(2), 275-286 (1989)
Sulfonation of benzocrown ethers by potassium sulfate in polyphosphoric acid.
Grebenyuk AD, et al.
Chemistry of Heterocyclic Compounds, 37(7), 822-826 (2001)
Minimizing adsorption of proteins on fused silica in capillary zone electrophoresis by the addition of alkali metal salts to the buffers.
Green JS and Jorgenson JW.
Journal of Chromatography A, 478, 63-70 (1989)
Eagleson M.
Concise Encyclopedia Chemistry, 890-890 (1994)
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