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
Sulfonation of benzocrown ethers by potassium sulfate in polyphosphoric acid.
Grebenyuk AD, et al.
Chemistry of Heterocyclic Compounds, 37(7), 822-826 (2001)
Eagleson M.
Concise Encyclopedia Chemistry, 890-890 (1994)
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)
Conversion of phosphogypsum to potassium sulfate.
Aagli A, et al.
Journal of Thermal Analysis and Calorimetry, 82(2), 395-399 (2005)
Synthesis of needlelike mullite particles using potassium sulfate flux.
Hashimoto S and Yamaguchi A.
J. Eur. Ceram. Soc., 20(4), 397-402 (2000)
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