dipotassium sulfate

• ChemBase ID: 103666
• Molecular Formular: K2O4S
• Molecular Mass: 174.2592
• Monoisotopic Mass: 173.87914284
• SMILES: [K+].[K+].[O-]S(=O)(=O)[O-]
• Canonical SMILES: [O-]S(=O)(=O)[O-].[K+].[K+]
• InChI: InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChIKey: OTYBMLCTZGSZBG-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dipotassium sulfate
• IUPAC Traditional name: dipotassium sulfate; dipotassium ion sulfate
• Synonyms: Sulfate, Ion chromatography standard solution, Specpure®, SO; Potassium sulfate, ACS; Potassium sulfate, Puratronic®; Potassium sulphate; Potassium sulfate; Potassium sulfate solution; Sulfuric Acid Dipotassium Salt; POTASSIUM SULFATE, ACS; Potassium sulfate; ?; 硫酸钾, ACS; 硫酸钾, Puratronic®; 硫酸钾 溶液; 硫酸钾

Database IDs

• CAS Number: 7778-80-5
• EC Number: 231-915-5
• MDL Number: MFCD00145343; MFCD00011388
• Merck Index: 147674
• PubChem SID: 24881904; 162091002; 24847735; 24852202; 24899038; 24853227; 24898129; 24898948; 24858905; 24853387
• PubChem CID: 24507
• CHEBI ID: 32036
• CHEMBL: 1201793
• Chemspider ID: 22915
• KEGG ID: D01726
• Unique Ingredient Identifier: 1K573LC5TV
• Wikipedia Title: Potassium_sulfate

CALCULATED PROPERTIES

• Acid pKa: -3.034349
• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -5.569452
• LogD (pH = 7.4): -5.594027
• Log P: -0.841552
• Molar Refractivity: 11.5274 cm^3
• Polarizability: 6.037845 Å^3
• Polar Surface Area: 80.26 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 111 g/L (20 °C) ; 120 g/L (25 °C) ; 240 g/L (100 °C) in water; H2O: soluble0.5 M at 20 °C, clear, colorless; H2O: soluble1 M, clear, colorless; slightly soluble in glycerol ; insoluble in acetone, alcohol, CS₂; Soluble in water. Insoluble in alcohol
• Apperance: Crystalline; granular; Liquid; powder; Powder; powder (fine); White solid
• Melting Point: 1069 °C; 1069°C; 1069°C
• Boiling Point: 1689 °C; 1689°C; 1689°C
• Flash Point: Non-flammable
• Density: 1.056 g/mL at 20 °C; 2.66 g/cm^3; 2.662; 2.662 g/cm^3
• Refractive Index: 1.495
• Absorption Wavelength: λ: 260 nm Amax: ≤0.01; λ: 260 nm Amax: 0.01; λ: 280 nm Amax: ≤0.01; λ: 280 nm Amax: 0.01
• pKa: ~7
• Odor: odorless
• pH: 5.5-5.8 (25 °C, 5%); 5.5-7.5 (20 °C, 0.5 M in H2O); 5.5-7.5 (25 °C, 0.5 M in H2O); 5.5-7.5 (50 mg/mL in H2O, hot); 5.5-8.5 (20 °C, 5%)

Safety Information

• Storage Condition: Room Temperature (15-30°C)
• RTECS: TT5900000
• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 1
• Risk Statements: R:36/37/38; R22
• Safety Statements: S:20-25-26-37/39; S36
• TSCA Listed: 是
• EU Index: Not listed
• Main Hazard: Irritant
• LD50: 6600 mg/kg
• Personal Protective Equipment: Eyeshields, Gloves; Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Product Information

• Purity: ≥98.5% (perchloric acid titration); ≥99%; ≥99% (calc. to the dried substance); ≥99.0%; ≥99.0% (AT); ≥99.0% (T); 99%; 99.0% min; 99.99% (metals basis); 99.99% trace metals basis; 99.997% (metals basis); 99-101%
• Concentration: 0.5 M; 0.5 M in H2O
• Grade: ACS; ACS reagent; ACS reagent, reag. ISO; JIS special grade; puriss.; puriss. p.a.; purum; purum p.a.; REAGENT; ReagentPlus®; SAJ first grade
• Suitability: in accordance for appearance of solution; plant cell culture tested
• Impurities: ≤0.0005% heavy metals (as Pb); ≤0.0005% total nitrogen (N); ≤0.001% heavy metals (as Pb); ≤0.005% in water insoluble matters; ≤0.005% Phosphorus (P); ≤0.01% free acid (as H2SO4); ≤0.01% insolubles; ≤0.03% free alkali (as KOH); ≤0.1% Insoluble matter; ≤5 ppm N compounds; acidity or alkalinity, in accordance; insoluble matter, passes filter test; residual solvents, complies
• Cation Traces: Al: ≤0.0005%; Al: ≤1 mg/kg; Al: ≤5 mg/kg; As: ≤0.1 mg/kg; As: ≤1 mg/kg; As: ≤2 mg/kg; As: ≤5 mg/kg; Ba: ≤1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤1 mg/kg; Bi: ≤5 mg/kg; Ca: ≤0.01%; Ca: ≤20 mg/kg; Ca: ≤200 mg/kg; Ca: ≤50 mg/kg; Cd: ≤1 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤1 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤1 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.0005%; Cu: ≤1 mg/kg; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤0.0005%; Fe: ≤1 mg/kg; Fe: ≤10 mg/kg; Fe: ≤5 mg/kg; Fe: ≤5 ppm; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤5 ppm; Li: ≤1 mg/kg; Li: ≤5 mg/kg; Mg: ≤0.0005%; Mg: ≤0.005%; Mg: ≤1 mg/kg; Mg: ≤20 mg/kg; Mn: ≤1 mg/kg; Mn: ≤5 mg/kg; Mo: ≤1 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.01%; Na: ≤0.02%; Na: ≤100 mg/kg; Na: ≤20 mg/kg; Na: ≤50 mg/kg; NH4+: ≤0.05%; Ni: ≤1 mg/kg; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤0.001%; Pb: ≤1 mg/kg; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤20 mg/kg; Sr: ≤50 mg/kg; Zn: ≤0.0005%; Zn: ≤1 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤0.001%; chloride (Cl-): ≤100 mg/kg; chloride (Cl-): ≤20 mg/kg; chloride (Cl-): ≤200 mg/kg; chloride (Cl-): ≤5 mg/kg; phosphate (PO43-): ≤10 mg/kg
• Loss on Drying: ≤0.5% loss on drying, 105 °C, 4 h; ≤0.5% loss on drying, 130 °C
• Quality Level: PREMIUM
• Quality: meets analytical specification of Ph. Eur.
• λ: 0.5 M in H2O
• Product Line: BioUltra
• Granulation: <0.3 mm
• Linear Formula: K2SO4

DETAILS

MP Biomedicals - 02152564

Anhydrous
ACS Reagent Grade
Powder

MP Biomedicals - 02152565

Anhydrous
ACS Reagent Grade
Granular

Sigma Aldrich - 60528

Other Notes
Component of Pseudomonas Selective Agar Base, and Pseudomonas Agar P Base.

Sigma Aldrich - 204129

Packaging
10, 50 g in poly bottle

Sigma Aldrich - 223492

Packaging
2.5 kg in poly bottle
500 g in poly bottle

Sigma Aldrich - P0772

包装
1 kg in poly bottle
250 g in poly bottle
法律信息
ReagentPlus 注册商标 Sigma-Aldrich Co. LLC

Sigma Aldrich - 221325

Packaging
2.5 kg in poly bottle
500 g in poly bottle