795429

Sodio idrossido

anhydrous, free-flowing, pellets, Redi-Dri^™, ACS reagent, ≥97%

• Sinonimo/i: ‘Soda caustica’
• Formula condensata: NaOH
• Numero CAS: 1310-73-2
• Peso molecolare: 40.00
• Numero CE: 215-185-5
• Numero MDL: MFCD00003548
• Codice UNSPSC: 12352316
• ID PubChem: 329768482
• NACRES: NA.21

Proprietà

• Grado: ACS reagent; anhydrous
• Livello qualitativo: 100
• agenzia: suitable for DIN 38407-42; suitable for EPA 1621; suitable for EPA 533; suitable for EPA 8327; suitable for EPA OTM-45; suitable for SM 4500 - NH3
• Densità del vapore: >1 (vs air)
• Tensione di vapore: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• Nome Commerciale: Redi-Dri^™
• Saggio: ≥97%
• Forma fisica: pellets
• Qualità: free-flowing
• Impurezze: ≤0.001% N compounds; ≤0.02% NH₄OH ppt.; ≤1.0% Na₂CO₃
• Punto di fusione: 318 °C (lit.)
• Solubilità: water: soluble 1260 g/L at 20 °C
• Densità: 2.13 g/cm³
• Anioni in tracce: chloride (Cl^-): ≤0.005%; phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• Cationi in tracce: Fe: ≤0.001%; Hg: ≤0.1 ppm; K: ≤0.02%; Ni: ≤0.001%; heavy metals (as Ag): ≤0.002%
• Stringa SMILE: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1; HEMHJVSKTPXQMS-UHFFFAOYSA-M

Descrizione

Descrizione generale

Sodium hydroxide (NaOH) also known as caustic soda is a water soluble inorganic base with a wide range of industrial application such as titration, dissolution testing and in impinger to remove acidic gases. It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite. It participates in solvent-free aldol condensation reaction.

Applicazioni

Sodium hydroxide (NaOH) was used in the following processes:

• Preparation of sodium 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA) that is utilized in protein cross-linking techniques.
• Preparation of electrolyte solution to study the effect of electrolyte composition on the conversion of CO₂ to CO by electrochemical reduction.
• Preparation of CSK (cytoskeleton) buffer for the three-dimensional (3D) slide method of preserving the 3D chromatin structure of testicular germ cells.
• Synthesis of ZSMs (zeolite socony mobils).

Sodium hydroxide may be employed for the deterimination of specific surface area of colloidal silica, via titration. It 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 prepare citrate buffer and borate buffer.

It may be used in the synthesis of :

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

Sodium hydroxide may be used as a base in titration methods, dissolution testing, for adjusting pH and in the impinger to remove acidic gases.

It may be used in the following processes:

• Conversion of glycerol to glyceric acid in the presence of gold catalyst.
• Palladium-catalyzed cross-coupling reaction between vinylalkoxysilanes and aryl bromides or chlorides to form styrenes.

Caratteristiche e vantaggi

• Increased efficiency – Eliminate time and effort of loosening hardened powders
• Safety – Avoid risks of using tools of force to break up clumps
• Economy – Faster preparation and solvation increase productivity and reduce costs
• Assured quality – Excellent, expert-tested quality with no anti-caking agents
• Flexible volumes – Available from research amounts to scale-up quantities

Note legali

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Informazioni sulla sicurezza

• Pittogrammi: GHS05
• Avvertenze: Danger
• Indicazioni di pericolo: H290,H314
• Consigli di prudenza: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classi di pericolo: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Codice della classe di stoccaggio: 8A - Combustible corrosive hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable