221465

Sodium hydroxide

ACS reagent, ≥97.0%, pellets

• Synonim(y): ‘Caustic soda’
• Wzór liniowy: NaOH
• Numer CAS: 1310-73-2
• Masa cząsteczkowa: 40.00
• Numer WE: 215-185-5
• Numer MDL: MFCD00003548
• Kod UNSPSC: 12352302
• Identyfikator substancji w PubChem: 329752270
• NACRES: NA.21

Właściwości

• klasa czystości: ACS reagent
• Poziom jakości: 200
• agency: 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
• gęstość pary: >1 (vs air)
• ciśnienie pary: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• Próba: ≥97.0%
• Formularz: pellets
• metody: cell culture | mammalian: suitable; titration: suitable
• zanieczyszczenia: ≤0.001% N compounds; ≤0.02% NH₄OH ppt.; ≤1.0% Na₂CO₃
• mp: 318 °C (lit.)
• rozpuszczalność: water: soluble 1,260 g/L at 20 °C
• gęstość: 2.13 g/cm³ at 20 °C
• ślady anionów: chloride (Cl^-): ≤0.005%; phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• ślady kationów: Fe: ≤0.001%; Hg: ≤0.1 ppm; K: ≤0.02%; Ni: ≤0.001%; heavy metals (as Ag): ≤0.002%
• ciąg SMILES: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• Klucz InChI: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Opis

Opis ogólny

Sodium hydroxide (NaOH) also known as caustic soda is a water soluble inorganic base with a wide range of industrial application such as titration,[1] dissolution testing[2] and in impinger to remove acidic gases.[3] It participates in the oxidation of glycerol catalyzed by Au/charcoal or Au/graphite.[4] It participates in solvent-free aldol condensation reaction.[5]

Zastosowanie

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.[6]
• Preparation of electrolyte solution to study the effect of electrolyte composition on the conversion of CO₂ to CO by electrochemical reduction.[7]
• Preparation of CSK (cytoskeleton) buffer for the three-dimensional (3D) slide method of preserving the 3D chromatin structure of testicular germ cells.[8]
• Synthesis of ZSMs (zeolite socony mobils).[9]

Sodium hydroxide may be employed for the deterimination of specific surface area of colloidal silica, via titration.[10] It may be employed for the direct oxidation of sodium borohydride, which was investigated by cyclic and linear voltammetry, chronoamperometry and chronopotentiometry.[11] It may be used to prepare citrate buffer and borate buffer.[12] It may be used in the synthesis of :

• alkylaryl amidosulfobetaines[13]
• (3 -[4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)[13]
• trisulfobetaines (TriSBn)[13]

Sodium hydroxide may be used as a base in titration methods[1], dissolution testing[2], for adjusting pH[14] and in the impinger to remove acidic gases.[1]
It may be used in the following processes:

• Conversion of glycerol to glyceric acid in the presence of gold catalyst.[15]
• Palladium-catalyzed cross-coupling reaction between vinylalkoxysilanes and aryl bromides or chlorides to form styrenes.[16]

Inne uwagi

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Informacje prawne

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS05
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H290,H314
• Zwroty wskazujące środki ostrożności: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Klasyfikacja zagrożeń: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Kod klasy składowania: 8B - Non-combustible corrosive hazardous materials
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable