disodium pentahydrate selenite

• ChemBase ID: 137931
• Molecular Formular: H10Na2O8Se
• Molecular Mass: 263.01414
• Monoisotopic Mass: 263.93362684
• SMILES: O.O.O.O.O.[O-][Se](=O)[O-].[Na+].[Na+]
• Canonical SMILES: [O-][Se](=O)[O-].O.O.O.O.O.[Na+].[Na+]
• InChI: InChI=1S/2Na.H2O3Se.5H2O/c;;1-4(2)3;;;;;/h;;(H2,1,2,3);5*1H2/q2*+1;;;;;;/p-2
• InChIKey: TUANAMBRHOLYTH-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: disodium pentahydrate selenite
• IUPAC Traditional name: disodium pentahydrate selenite
• Synonyms: Sodium selenite pentahydrate; 亚硒酸钠 五水合物

Database IDs

• CAS Number: 26970-82-1
• EC Number: 233-267-9
• MDL Number: MFCD00149173
• PubChem SID: 162232191; 24844980
• PubChem CID: 134930

CALCULATED PROPERTIES

• Polar Surface Area: 63.19 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true
• Acid pKa: 1.19897
• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -3.5574248
• LogD (pH = 7.4): -4.2274547
• Log P: -1.2765
• Molar Refractivity: 17.4436 cm^3
• Polarizability: 3.671146 Å^3

PROPERTIES

Safety Information

• RTECS: VS7420000
• European Hazard Symbols: Nature polluting (N); Highly toxic (T+)
• UN Number: 2630
• German water hazard class: 2
• Hazard Class: 6.1
• Packing Group: 1
• Risk Statements: 23-28-31-43-51/53
• Safety Statements: 28-36/37-45-61
• GHS Pictograms: GHS06; GHS09
• GHS Signal Word: Danger
• GHS Hazard statements: H300-H317-H331-H411
• GHS Precautionary statements: P261-P264-P273-P280-P301 + P310-P311
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 2630 6.1/PG 1
• Supplemental Hazard Statements: Contact with acids liberates toxic gas.

Product Information

• Purity: ≥99.0% (RT); 98%
• Grade: puriss. p.a.
• Impurities: ≤0.005% total nitrogen (N)
• Cation Traces: Ca: ≤20 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤10 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• Antion Traces: chloride (Cl-): ≤50 mg/kg; selenate, sulfate (as SO42-): ≤50 mg/kg
• Linear Formula: Na2SeO3 · 5H2O