Merck
All Photos(1)

30620-M

Sigma-Aldrich

Sodium hydroxide

puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, pellets

Synonym(s):
‘Caustic soda’
Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

Nivel de calidad

100

grado

ACS reagent
puriss. p.a.

Agency

reag. Ph. Eur.

densidad de vapor

>1 (vs air)

presión de vapor

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

ensayo

≥98%

formulario

pellets

technique(s)

titration: suitable

impurezas

≤0.0003% total nitrogen (N)
≤0.002% heavy metals (as Ag)
≤1.0% Na2CO3
≤5 ppm heavy metals (as Pb)

mp

318 °C (lit.)

solubilidad

water: soluble 1260 g/L at 20 °C

densidad

2.13 g/cm3

trazas de anión

chloride (Cl-): ≤10 ppm
phosphate (PO43-): ≤0.0005%
silicate (as SiO2): ≤0.001%
sulfate (SO42-): ≤30 ppm

trazas de catión

Al: ≤0.0005%
As: ≤0.0001%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤5 ppm
Hg: ≤0.05 ppm
K: ≤0.02%
Mg: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0002%
Zn: ≤0.0005%

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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Descripción general

Sodium hydroxide is an inorganic base. It participates in the oxidation of glycerol, catalyzed by Au/charcoal or Au/graphite. It also participates in solvent-free aldol condensation reaction.

Aplicación

Sodium hydroxide may be employed for determination of specific surface area of colloidal silica, via titration. It may be employed for direct oxidation of sodium borohydride, which was investigated by cyclic and linear voltammetry, chronoamperometry and chronopotentiometry. It may be used to compose citrate buffer and borate buffers.
It may be used in the synthesis of following compounds:
  • alkylaryl amidosulfobetaines
  • (3 -[4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)
  • trisulfobetaines (TriSBn)

pictogramas

Corrosion

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

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

Código de clase de almacenamiento

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Certificate of Analysis

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Certificate of Origin

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