dipotassium hydrogen phosphate

• ChemBase ID: 103487
• Molecular Formular: HK2O4P
• Molecular Mass: 174.175901
• Monoisotopic Mass: 173.8886585
• SMILES: [K+].[K+].OP(=O)([O-])[O-]
• Canonical SMILES: [O-]P(=O)(O)[O-].[K+].[K+]
• InChI: InChI=1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChIKey: ZPWVASYFFYYZEW-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dipotassium hydrogen phosphate
• IUPAC Traditional name: dipotassium hydrogen phosphate; dipotassium ion hydrogen phosphate
• Synonyms: Dipotassium hydrogenphosphate; sec.-Potassium phosphate; Potassium monohydrogen phosphate; Phosphoric acid dipotassium salt; Potassium phosphate dibasic; Dipotassium phosphate; Potassium phosphate, dibasic; Potassium hydrogen phosphate, dried; Potassium phosphate dibasic; Dipotassium Hydrogen Phosphate; POTASSIUM PHOSPHATE DIBASIC; di-Potassium hydrogen phosphate trihydrate; Dipotassium hydrogen phosphate trihydrate; Dipotassium phosphate; Potassium hydrogen phosphate, ACS; 无水磷酸氢钾; 磷酸二钾; 磷酸氢二钾; 磷酸钾 二元; 磷酸氢钾, ACS

Database IDs

• CAS Number: 7758-11-4; 16788-57-1
• EC Number: 231-834-5
• MDL Number: MFCD00011383
• Merck Index: 147658
• PubChem SID: 162090906; 24881847; 24881849; 24881843; 24898453; 24898291; 24845702; 24850733; 24881851; 24868542; 24898739; 24881850
• PubChem CID: 24450
• CHEMBL: 1200459
• Chemspider ID: 22858
• Unique Ingredient Identifier: CI71S98N1Z
• Wikipedia Title: Dipotassium_phosphate

CALCULATED PROPERTIES

• Acid pKa: 1.7961261
• H Acceptors: 4
• H Donor: 1
• LogD (pH = 5.5): -3.3916447
• LogD (pH = 7.4): -3.9718332
• Log P: -1.0201038
• Molar Refractivity: 12.4085 cm^3
• Polarizability: 5.685633 Å^3
• Polar Surface Area: 83.42 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 149.25 g/100 mL (20 °C) in water; H2O: soluble0.1 g/mL at 25 °C, clear, colorless; H2O: soluble1 M at 20 °C, clear, colorless; slightly soluble in alcohol; Soluble in water. Slightly soluble in alcohol
• Apperance: Powder; powder and chunks; white powder ; deliquescent
• Melting Point: >465 °C decomp.; ca. 340 °C with decomposition
• Flash Point: Non-flammable
• Density: 2.44 g/cm^3
• Absorption Wavelength: λ: 230 nm Amax: ≤0.15; λ: 240 nm Amax: ≤0.12; λ: 250 nm Amax: ≤0.11; λ: 260 nm Amax: ≤0.20; λ: 280 nm Amax: ≤0.15; λ: 310 nm Amax: ≤0.05; λ: 500 nm Amax: 0.02
• pKa: (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid); 12.4
• pKb: 6.8
• Odor: odorless
• pH: 8.5-9.5 (25 °C, 50 mg/mL in H2O); 8.5-9.6 (25 °C, 5% in solution); 8.5-9.6 (25 °C, 50 mg/mL in H2O); 8.7-9.3 (20 °C, 10% in H2O); 8.7-9.3 (25 °C, 1 M in H2O); 8.7-9.4 (20 °C, 1%)

Safety Information

• Storage Condition: Room Temperature (15-30°C)
• Storage Warning: Hygroscopic
• RTECS: TC5580000
• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 3
• Risk Statements: 36; R:36/37/38
• Safety Statements: 26-60; S:20-25-26-37/39
• TSCA Listed: 是
• EU Index: Not listed
• GHS Pictograms: GHS07
• NFPA704:
  

  0

  2

  0
• GHS Hazard statements: H319
• GHS Precautionary statements: P280-P264-P305+P351+P338-P337+P313
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Product Information

• Purity: ≥99%; ≥98%; ≥98.0%; ≥98.0% (T); ≥99%; ≥99.0%; ≥99.0% (T); ≥99.999% (metals basis); 98.0% min; 98+%; 99%; 99.99% trace metals basis
• Grade: ACS reagent; for HPLC; for luminescence; for molecular biology; for trace analysis; JIS special grade; puriss.; puriss. p.a.; purum p.a.; reagent grade; SAJ first grade; TraceSELECT®
• Suitability: corresponds for filter test; corresponds to standard for RP gradient test; in accordance for luminescence; meets USP testing specifications
• Description: anhydrous
• Impurities: ≤0.0005% heavy metals (as Pb); ≤0.001% N compounds; ≤0.001% Nitrogen compounds (as N); ≤0.001% total nitrogen (N); ≤0.01% Insoluble matter; ≤0.01% insolubles; ≤0.01% water insolubles; ≤10 mg/kg total nitrogen (N); DNases, none detected; insoluble matter, passes filter test; phosphatases, none detected; proteases, none detected; RNases, none detected
• Cation Traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; As: ≤1 mg/kg; Ba: ≤1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤0.5 mg/kg; Ca: ≤10 mg/kg; Ca: ≤50 mg/kg; Cd: ≤0.005 mg/kg; Cd: ≤1 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Ce: ≤0.01 mg/kg; Co: ≤0.01 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.005 mg/kg; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Eu: ≤0.01 mg/kg; Fe: ≤0.001%; Fe: ≤0.1 mg/kg; Fe: ≤10 mg/kg; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤5 ppm; heavy metals: ≤5 ppm; Hg: ≤0.005 mg/kg; Hg: ≤1 mg/kg; La: ≤0.01 mg/kg; Li: ≤5 mg/kg; Mg: ≤0.5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤0.01 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.05%; Na: ≤1%; Na: ≤1.5%; Na: ≤10 mg/kg; Na: ≤500 mg/kg; Na: ≤5000 mg/kg; Ni: ≤0.01 mg/kg; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤0.005 mg/kg; Pb: ≤4 mg/kg; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sm: ≤0.01 mg/kg; Sr: ≤0.5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤0.01 mg/kg; Y: ≤0.01 mg/kg; Yb: ≤0.01 mg/kg; Zn: ≤0.01 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): <5 mg/kg; chloride (Cl-): ≤0.003%; chloride (Cl-): ≤100 mg/kg; chloride (Cl-): ≤20 mg/kg; chloride (Cl-): ≤30 mg/kg; chloride (Cl-): ≤50 mg/kg; fluoride (F-): ≤10 mg/kg; sulfate (SO42-): ≤0.005%; sulfate (SO42-): ≤100 mg/kg; sulfate (SO42-): ≤30 mg/kg; sulfate (SO42-): ≤50 mg/kg; sulfate (SO42-): ≤500 mg/kg
• Loss on Drying: ≤1% loss on drying, 130 °C; ≤1.0% loss on drying; ≤1.0% loss on drying, 105 °C; ≤1.0% loss on drying, 105°C
• pH Range: 8.5 - 9.6
• Quality Level: PREMIUM
• λ: 1 M in H2O; 10 % in H2O
• Product Line: BioUltra
• Linear Formula: K2HPO4

DETAILS

MP Biomedicals - 02151946

Trihydrate
Crystalline
Purity: 99+%

MP Biomedicals - 02151945

Anhydrous
Crystalline
Purity: 99%

Sigma Aldrich - 60354

Other Notes
Component of a wide variety of media for the culture of microorganisms. Component of Dulbecco′s phosphate buffered saline for cell culture in which it maintains the pH and supplies essential phosphate
Suitable alkalimetric standard for standardizing NaOH, KOH, Ba(OH)2.

Sigma Aldrich - 450200

Packaging
5, 25 g in poly bottle

Sigma Aldrich - 60347

Legal Information
TraceSELECT is a registered trademark of Sigma-Aldrich Co. LLC

Sigma Aldrich - P3786

包装
1, 2.5, 4×2.5 kg in poly bottle
100, 500 g in poly bottle

Sigma Aldrich - P8281

包装
100, 500 g in poly bottle