06203

Natriumhydroxid

puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, 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: 329748217
• NACRES: NA.21

Eigenschaften

• Dampfdichte: >1 (vs air)
• Qualitätsniveau: 200
• Dampfdruck: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• Qualität: puriss.; meets analytical specification of Ph. Eur., BP, NF, E524
• Assay: 98-100.5%
• Form: pellets
• Verunreinigungen: ≤0.0005% total nitrogen (N); ≤0.002% heavy metals (as Pb); ≤0.5% Na₂CO₃
• mp (Schmelzpunkt): 318 °C (lit.)
• Löslichkeit: water: soluble 1260 g/L at 20 °C
• Dichte: 2.13 g/cm³ at 20 °C
• Anionenspuren: chloride (Cl^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg; silicate (as SiO₂): ≤100 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• Kationenspuren: Al: ≤10 mg/kg; As: ≤2 mg/kg; Ca: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; K: ≤1000 mg/kg; Pb: ≤0.5 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, also known as lye and caustic soda, is a strong base used universally as a neutralization agent in the chemical industry, paper making, petroleum refining, cleaning compounds, and drain cleaners.

Anwendung

Sodium hydroxide can be used as:

• A reagent in the gold-catalyzed selective oxidation of glycerol to glyceric acid.
• A catalyst for the cross-dehydrogenative coupling of alcohols and hydrosilanes to synthesize silyl ethers.
• A base in the transition-metal free Sonogashira-type couplings of aryl halides and alkynes to synthesize ynones in the presence of PEG as a phase-transfer agent.

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