30620

Hidróxido de sódio

puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, pellets

• Sinônimo(s): ‘Soda cáustica’
• Fórmula linear: NaOH
• Número CAS: 1310-73-2
• Peso molecular: 40.00
• Número CE: 215-185-5
• Número MDL: MFCD00003548
• Código UNSPSC: 12352302
• ID de substância PubChem: 329753547
• NACRES: NA.21

Propriedades

• grau: ACS reagent; puriss. p.a.
• Nível de qualidade: 200
• Agency: reag. Ph. Eur.
• densidade de vapor: >1 (vs air)
• pressão de vapor: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• Ensaio: ≥98%
• forma: pellets
• técnica(s): titration: suitable
• Impurezas: ≤0.0003% total nitrogen (N); ≤0.0005% heavy metals (as Pb); ≤1% Na₂CO₃
• pf: 318 °C (lit.)
• solubilidade: water: soluble 1260 g/L at 20 °C
• densidade: 2.13 g/cm³ at 20 °C
• traços de ânion: chloride (Cl^-): ≤10 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; silicate (as SiO₂): ≤10 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• traços de cátion: Al: ≤5 mg/kg; As: ≤1 mg/kg; Ca: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Hg: ≤0.05 mg/kg; K: ≤200 mg/kg; Mg: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤2 mg/kg; Zn: ≤5 mg/kg
• temperatura de armazenamento: 15-25°C
• cadeia de caracteres SMILES: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• chave InChI: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Descrição

Descrição geral

Sodium hydroxide 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.

Aplicação

Sodium hydroxide may be employed for determination of specific surface area of colloidal silica, via titration. It may be employed for 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)

Informações de segurança

• Pictogramas: GHS05
• Palavra indicadora: Danger
• Frases de perigo: H290 - H314
• Declarações de precaução: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classificações de perigo: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Código de classe de armazenamento: 8A - Combustible, corrosive hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable