1.05153

Sulfate de potassium

for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

• Synonyme(s) : Sulfate de potassium, Pyrosulfate de potassium
• Formule empirique (notation de Hill): K₂O₄S
• Numéro CAS: 7778-80-5
• Poids moléculaire : 174.26
• Numéro MDL: MFCD00011388
• Code UNSPSC : 12352302
• Numéro de classement CE : 231-915-5
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 300
• Agence: reag. ISO; reag. Ph. Eur.
• Gamme de produits: EMSURE^®
• Pureté: ≥99.0% (alkalimetric)
• Forme: solid
• Puissance: 6600 mg/kg LD₅₀, oral (Rat)
• Impuretés: ≤0.01% Insoluble matter
• pH: 5.5-8.5 (20 °C, 50 g/L in H₂O)
• Point d'ébullition: 1689 °C/1013 hPa
• Pf: 1069 °C
• Densité: 2.66 g/cm³ at 20 °C
• Masse volumique apparente: 800 kg/m³
• Traces d'anions: chloride (Cl^-): ≤0.0005%
• Traces de cations: As: ≤0.0002%; Ca: ≤0.005%; Fe: ≤0.0005%; Mg: ≤0.002%; N: ≤0.0005%; Na: ≤0.02%; heavy metals (as Pb): ≤0.0005%
• Température de stockage: 2-30°C
• InChI: 1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• Clé InChI: OTYBMLCTZGSZBG-UHFFFAOYSA-L

Description

Application

• Fertilizer application alters cadmium and selenium bioavailability in soil-rice system with high geological background levels: This study explores how different fertilizer applications, including potassium sulfate, affect the bioavailability of cadmium and selenium in rice cultivated in areas with naturally high levels of these elements (Zhou et al., 2024).
• Exogenous application of nano-silicon, potassium sulfate, or proline enhances physiological parameters, antioxidant enzyme activities, and agronomic traits of diverse rice genotypes under water deficit conditions: Research indicates that potassium sulfate, along with nano-silicon and proline, can improve water stress resilience in rice by enhancing physiological traits and antioxidant activities (Abd-El-Aty et al., 2024).
• Size-Independent Nucleation and Growth Model of Potassium Sulfate from Supersaturated Solution Produced by Stirred Crystallization: This paper presents a model of potassium sulfate crystallization that is independent of crystal size, providing insights into the controlled crystallization processes used in industry (Zheng, 2023).
• Prediction models of macro-nutrient content in plant organs of Cucumis melo in response to soil elements using support vector regression: This study includes potassium sulfate among the soil elements analyzed for their impact on nutrient uptake in melon, with models predicting how different soil treatments affect plant growth (Keshtehgar et al., 2023).
• [Effects of chemical fertilizer reduction and organic fertilizer substitution on yield and quality of Saposhnikovia divaricata]: This research evaluates the effects of reducing chemical fertilizers, including potassium sulfate, and substituting with organic options, highlighting changes in plant yield and quality (Li et al., 2023).

Liaison

Remplace : PX1595, PX1595-1, PX1595-5, PX1595-6, PX1595-20

Remarque sur l'analyse

Dosage (alcalimétrie) : ≥ 99,0 %
Matière insoluble : ≤ 0,01 %
pH (5 %, eau, 25 °C) : 5,5 - 7,5
Chlorure (Cl) : ≤ 0,0005 %
Azote total (N) : ≤ 0,0005 %
Métaux lourds (exprimé en Pb) : ≤ 0,0005 %
As (arsenic) : ≤ 0,0002 %
Ca (calcium) : ≤ 0,005 %
Fe (Fer) : ≤ 0,0005 %
Mg (magnésium) : ≤ 0,002 %
Na (sodium) : ≤ 0,02 %
Conforme à ACS, ISO, Réact. Ph Eur

Informations légales

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable