dipotassium sulfite

• ChemBase ID: 112795
• Molecular Formular: K2O3S
• Molecular Mass: 158.2598
• Monoisotopic Mass: 157.88422822
• SMILES: [K+].[K+].[O-]S(=O)[O-]
• Canonical SMILES: [O-]S(=O)[O-].[K+].[K+]
• InChI: InChI=1S/2K.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
• InChIKey: BHZRJJOHZFYXTO-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dipotassium sulfite
• IUPAC Traditional name: dipotassium sulfite; dipotassium ion sulfite
• Synonyms: E225; Potassium sulfite; POTASSIUM SULPHITE; Potassium sulfite; 亚硫酸钾

Database IDs

• CAS Number: 10117-38-1
• EC Number: 233-321-1
• MDL Number: MFCD00011387
• PubChem SID: 162097713; 24884361
• PubChem CID: 24958
• Wikipedia Title: Potassium_sulfite

CALCULATED PROPERTIES

• Acid pKa: 1.69897
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): -3.4536884
• LogD (pH = 7.4): -3.810975
• Log P: -1.1546873
• Molar Refractivity: 10.0845 cm^3
• Polarizability: 5.3231616 Å^3
• Polar Surface Area: 63.19 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: soluble in water
• Apperance: white solid
• Flash Point: Non-flammable
• pKa: 8

Safety Information

• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 1
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• EU Index: Not listed

Product Information

• Purity: ≥95.0%; 90%; 95%
• Grade: SAJ first grade
• Linear Formula: K2SO3

DETAILS

Sigma Aldrich - 658510

Application
Forms a Selenium-Bunte salt for transfer of allyl groups to thiols.1
Packaging
1 kg in glass bottle
25 g in glass bottle
3 kg in poly drum

Sigma Aldrich - 289817

Packaging
25 g in glass bottle