disodium hexafluorosilanediuide

• ChemBase ID: 99065
• Molecular Formular: F6Na2Si
• Molecular Mass: 188.0554592
• Monoisotopic Mass: 187.94688441
• SMILES: [Na+].[Si-2](F)(F)(F)(F)(F)F.[Na+]
• Canonical SMILES: F[Si-2](F)(F)(F)(F)F.[Na+].[Na+]
• InChI: InChI=1S/F6Si.2Na/c1-7(2,3,4,5)6;;/q-2;2*+1
• InChIKey: TWGUZEUZLCYTCG-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: disodium hexafluorosilanediuide
• IUPAC Traditional name: disodium hexafluorosilanediuide; dipotassium hexafluorosilanediuide
• Synonyms: Sodium hexafluorosilicate 98%; Sodium hexafluorosilicate; SODIUM SILICOFLUORIDE; 六氟硅酸钠

Database IDs

• CAS Number: 16893-85-9
• EC Number: 240-934-8
• MDL Number: MFCD00003491
• Merck Index: 148624
• PubChem SID: 24855039; 162085362; 24886228
• PubChem CID: 28127

CALCULATED PROPERTIES

• LogD (pH = 5.5): 2.1
• LogD (pH = 7.4): 2.1
• Log P: 2.1
• Polarizability: 4.849813 Å^3
• H Acceptors: 0
• H Donor: 0
• Molar Refractivity: 9.0078 cm^3
• Polar Surface Area: 0.0 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: Slightly soluble in water. Solubility increases with temperature. Insoluble in alcohol
• Apperance: Crystalline; powder
• Melting Point: dec.
• Density: 2.679; 2.68 g/ml; 2.68 g/mL at 25 °C(lit.)
• Refractive Index: 1.310

Safety Information

• Storage Warning: Toxic
• RTECS: VV8410000
• European Hazard Symbols: Toxic (T)
• UN Number: 2674; UN2674
• German water hazard class: 2
• Hazard Class: 6.1
• Packing Group: 3; III
• Risk Statements: 23/24/25; R:23/24/25
• Safety Statements: 26-45; S:26-45
• TSCA Listed: 是
• GHS Pictograms: GHS06
• GHS Signal Word: Danger
• GHS Hazard statements: H301-H311-H331
• GHS Precautionary statements: P261-P280-P301 + P310-P311; P261-P301+P310-P361-P302+P352-P405-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
• RID/ADR: UN 2674 6.1/PG 3

Product Information

• Purity: 97%; 99+%
• Grade: for fusion decomposition (of silicates)
• Cation Traces: Ag: ≤100 mg/kg; Al: ≤100 mg/kg; Ba: ≤100 mg/kg; Bi: ≤100 mg/kg; Ca: ≤100 mg/kg; Cd: ≤100 mg/kg; Co: ≤100 mg/kg; Cr: ≤100 mg/kg; Cu: ≤100 mg/kg; Fe: ≤100 mg/kg; K: ≤100 mg/kg; Li: ≤100 mg/kg; Mg: ≤100 mg/kg; Mn: ≤100 mg/kg; Mo: ≤100 mg/kg; Ni: ≤100 mg/kg; Pb: ≤100 mg/kg; Sr: ≤100 mg/kg; Tl: ≤100 mg/kg; Zn: ≤100 mg/kg
• Linear Formula: Na2SiF6

DETAILS

Sigma Aldrich - 250171

Packaging
2 kg in poly bottle
500 g in poly bottle

Sigma Aldrich - 71596

Other Notes
Reagent for the decomposition of silicates by fusion1,2