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Merck

221465

Hydroxyde de sodium

ACS reagent, ≥97.0%, pellets

Synonyme(s) :

"Soude caustique"

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About This Item

Formule linéaire :
NaOH
Numéro CAS:
1310-73-2
Poids moléculaire :
40.00
NACRES:
NA.21
PubChem Substance ID:
329752270
UNSPSC Code:
12352302
EC Number:
215-185-5
MDL number:
MFCD00003548

Nom du produit

Hydroxyde de sodium, ACS reagent, ≥97.0%, pellets

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

SMILES string

[OH-].[Na+]

grade

ACS reagent

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

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

Quality Level

200

pH

(ca.> 14 at 100 g/l at 20 °C)

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%

application(s)

PFAS testing

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Catégories apparentées

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.
  • 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.

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, 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.

Other Notes

Go to Redi-Dri™ Product Listing 795429

Legal Information

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

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

Classe de stockage

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCZ9819
MKCZ9820
MKCZ7582
MKCZ5520
MKCZ2339

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Consulter la Bibliothèque de documents

Satoshi H Namekawa
Journal of visualized experiments : JoVE, (83)(83), e50819-e50819 (2014-01-25)
During testicular germ cell differentiation, the structure of nuclear chromatin dynamically changes. The following describes a method designed to preserve the three-dimensional chromatin arrangement of testicular germ cells found in mice; this method has been termed as the three-dimensional (3D)
Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development.
Krishnamurthy VV, et al.
Journal of Visualized Experiments, 124, e55823-e55823 (2017)
Synthesis of zeolite socony mobil from blue silica gel and rice husk ash as catalysts for hydrothermal liquefaction.
Danardono AES and Mansur FA.
Journal of Engineering Science and Technology, 10(8), 982-993 (2015)
Ravi Bhardwaj et al.
Journal of the Air & Waste Management Association (1995), 59(11), 1331-1338 (2009-12-02)
The impact of different fly ash samples on mercury speciation in simulated flue gas at 140 degrees C was evaluated in this study. Experiments were conducted in a fixed bed reactor to determine the impact of fly ash morphological characteristics
Effect of Cations on the Electrochemical Conversion of CO2 to CO.
Thorson MR, et al.
Journal of the Electrochemical Society, 160(1), F69-F74 (2013)
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