71690

Natriumhydroxid

puriss. p.a., ACS reagent, K ≤0.02%, ≥98.0% (T), pellets

• Synonym(e): ‘Caustic Soda’
• Lineare Formel: NaOH
• CAS-Nummer: 1310-73-2
• Molekulargewicht: 40.00
• EG-Nummer: 215-185-5
• MDL-Nummer: MFCD00003548
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 329763439
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; puriss. p.a.
• Dampfdichte: >1 (vs air)
• Dampfdruck: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• Assay: ≥98.0% (T)
• Form: pellets
• Methode(n): cell culture | plant: suitable
• Verunreinigungen: ≤0.0003% total nitrogen (N); ≤0.0005% silicon dioxide (SiO₂); ≤1.0% sodium carbonate (Na₂CO₃)
• mp (Schmelzpunkt): 318 °C (lit.)
• Löslichkeit: water: soluble 1,260 g/L at 20 °C
• Dichte: 2.13 g/cm³ at 20 °C
• Anionenspuren: chloride (Cl^-): ≤10 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤5 mg/kg
• Kationenspuren: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤5 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Hg: ≤0.1 mg/kg; K: ≤200 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES String: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChIKey: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Beschreibung

Allgemeine Beschreibung

Sodium hydroxide (NaOH) is an inorganic base. It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite. It also participates in solvent-free aldol condensation reaction.

Anwendung

Sodium hydroxide may be employed for the direct oxidation of sodium borohydride, which was investigated by cyclic and linear voltammetry, chronoamperometry and chronopotentiometry. It may be used to compose citrate buffer and borate buffers.
It may be used in the synthesis of following compounds:

• alkylaryl amidosulfobetaines
• (3-[ 4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)
• trisulfobetaines (TriSBn)

Sonstige Hinweise

Reagenz für den Schmelzaufschluss von Silikaten

Sicherheitshinweise

• Piktogramme: GHS05
• Signalwort: Danger
• H-Sätze: H290,H314
• P-Sätze: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Lagerklassenschlüssel: 8B - Non-combustible corrosive hazardous materials
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable