Sodium hydroxide, ACS reagent, pellets, 2.5KG

SKU:
221465-2.5KG
  • $216.00

    • Description

    Sodium hydroxide, ACS reagent, ≥97.0%, pellets, 2.5KG

    Synonym(s):
    ‘Caustic soda’
    Linear Formula:
    NaOH
    CAS Number:
    1310-73-2
    Molecular Weight:
    40.00
    EC Number:
    215-185-5
    MDL number:
    MFCD00003548
    PubChem Substance ID:
    329752270
    NACRES:
    NA.21

    PROPERTIES

    grade

    ACS reagent

    Quality Level

    200

    vapor density

    >1 (vs air)

    vapor pressure

    <18 mmHg ( 20 °C)
    3 mmHg ( 37 °C)

    assay

    ≥97.0%

    form

    pellets

    technique(s)

    cell culture | mammalian: suitable
    titration: suitable

    impurities

    ≤0.001% N compounds
    ≤0.02% NH4OH ppt.
    ≤1.0% Na2CO3

    mp

    318 °C (lit.)

    solubility

    water: soluble 1,260 g/L at 20 °C

    density

    2.13 g/cm3 at 20 °C

    anion traces

    chloride (Cl-): ≤0.005%
    phosphate (PO43-): ≤0.001%
    sulfate (SO42-): ≤0.003%

    cation traces

    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

    InChI key

    HEMHJVSKTPXQMS-UHFFFAOYSA-M

    General description

    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]

    Application

    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]

    Packaging

    25, 500, 6×500 g in poly bottle
    1, 2.5 kg in poly bottle
    12, 25, 50 kg in poly drum

    Other Notes

    Go to Redi-Dri™ Product Listing 795429

    Legal Information

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

    SAFETY INFORMATION

    Pictograms

    GHS05

    Signal Word

    Danger

    Hazard Statements

    H290 - H314

    Precautionary Statements

    P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

    Hazard Classifications

    Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

    Storage Class Code

    8B - Non-combustible, corrosive hazardous materials

    WGK

    WGK 1

    Flash Point(F)

    Not applicable

    Flash Point(C)

    Not applicable