795429

Sodium hydroxide

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

• Szinonimák: ‘Caustic soda’
• Lineáris képlet: NaOH
• CAS-szám: 1310-73-2
• Molekulatömeg: 40.00
• EC-szám: 215-185-5
• MDL-szám: MFCD00003548
• UNSPSC kód: 12352316
• PubChem Substance ID: 329768482
• NACRES: NA.21

Tulajdonságok

• grade: ACS reagent; anhydrous
• Minőségi szint: 100
• Ügynökség: 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
• gőzsűrűség: >1 (vs air)
• gőznyomás: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• termékcsalád: Redi-Dri^™
• Teszt: ≥97%
• form: pellets
• minőség: free-flowing
• szennyeződések: ≤0.001% N compounds; ≤0.02% NH₄OH ppt.; ≤1.0% Na₂CO₃
• mp: 318 °C (lit.)
• oldhatóság: water: soluble 1260 g/L at 20 °C
• sűrűség: 2.13 g/cm³
• anion nyomok: chloride (Cl^-): ≤0.005%; phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• kation nyomok: Fe: ≤0.001%; Hg: ≤0.1 ppm; K: ≤0.02%; Ni: ≤0.001%; heavy metals (as Ag): ≤0.002%
• SMILES string: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• Nemzetközi kémiai azonosító kulcs: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Leírás

Általános leírás

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.

Alkalmazás

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.

Tulajdonságok és előnyök

• 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

Jogi információk

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

Biztonsági adatok

• Piktogramok: GHS05
• Figyelmeztetés: Danger
• Figyelmeztető mondatok: H290,H314
• Óvintézkedésre vonatkozó mondatok: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Veszélyességi osztályok: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Tárolási osztály kódja: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable