223492
硫酸钾
ACS reagent, ≥99.0%, powder
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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
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-915-5
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder
Solubility:
water: soluble (120 g/l)
grade
ACS reagent
Quality Level
agency
suitable for EPA 300
assay
≥99.0%
form
powder
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)
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
General description
硫酸钾(K2SO4)是一种无色化合物，具有菱形或六边形晶体。它很容易与三价金属（即明矾）的硫酸盐形成双重盐。它还能与钙、镁和硫酸钠形成双重盐。它被广泛用作肥料。K2SO4可从自然界各种复杂盐类中提取，如凯恩石、朗贝石和卡帕锡矿等。可以氯化钾和硫酸为原料，采用曼海姆法合成。
硫酸钾是一种水溶性无机盐，通常用于化肥。它可以由磷石膏和氯化钾反应制备。K2SO4与硫酸铝、二氧化硅加热可形成针状莫来石颗粒。它在土壤中的应用已经表明可以减少水稻植株的青铜化。
Application
硫酸钾可用于制备针状晶粒。其可用作缓冲剂，以最大程度避免蛋白质毛细管区带电泳时吸附在熔融石英毛细管上。
硫酸钾可用于通过二苯并-18-冠-6的磺化制备4′-二苯并-18-冠-6-磺酸。
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存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
相关内容
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
Sulfonation of benzocrown ethers by potassium sulfate in polyphosphoric acid.
Grebenyuk AD, et al.
Chemistry of Heterocyclic Compounds, 37(7), 822-826 (2001)
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)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 223492-2.5KG | 04061832562834 |
| 223492-500G | 04061838778505 |