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05211

Sigma-Aldrich

Sodium hydroxide solution

purum, ≥32%

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Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

3 mmHg ( 37 °C)

Quality Level

grade

purum

form

solution

concentration

≥32%

technique(s)

titration: suitable

impurities

≤0.001% heavy metals (as Pb)

pH

14

density

1.327 g/cm3 at 25 °C

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Fe: ≤20 mg/kg

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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1 of 4

This Item
4154131.091401.09139
vibrant-m

05211

Sodium hydroxide solution

vibrant-m

415413

Sodium hydroxide solution

vibrant-m

1.09140

Sodium hydroxide solution

vibrant-m

1.09139

Sodium hydroxide solution

vapor pressure

3 mmHg ( 37 °C)

vapor pressure

3 mmHg ( 37 °C)

vapor pressure

3 mmHg ( 37 °C)

vapor pressure

3 mmHg ( 37 °C)

grade

purum

grade

-

grade

-

grade

-

form

solution

form

liquid (viscous)

form

liquid

form

liquid

concentration

≥32%

concentration

48-52% (by HCl, titration), 50% in H2O

concentration

0.2 M

concentration

0.25 M

impurities

≤0.001% heavy metals (as Pb)

impurities

-

impurities

-

impurities

-

General description

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

Application

Sodium hydroxide may be employed for the determination 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 compose citrate buffer and borate buffers. It may be used in the synthesis of :
  • alkylaryl amidosulfobetaines
  • (3-[4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)
  • trisulfobetaines (TriSBn)

Other Notes

The article number 05211-4X2.5L will be discontinued. Please order the single bottle 05211-2.5L which is physically identical with the same exact specifications.
The article number 05211-4X5L will be discontinued. Please order the single bottle 05211-5L which is physically identical with the same exact specifications.

pictograms

Corrosion

signalword

Danger

Hazard Classifications

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

Storage Class

8B - Non-combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Sodium hydroxide

Chemoselective, solvent-free aldol condensation reaction.
Raston CL and Scott JL.
Green Chemistry, 2(2), 49-52 (2000)
Kinetics of sodium borohydride direct oxidation and oxygen reduction in sodium hydroxide electrolyte: Part I. BH4- electro-oxidation on Au and Ag catalysts.
Chatenet M, et al.
Electrochimica Acta, 51(25), 5459-5467 (2006)
M A Roberts et al.
Analytical chemistry, 69(11), 2035-2042 (1997-06-01)
This report describes a UV laser photoablation method for the production of miniaturized liquid-handling systems on polymer substrate chips. The fabrication of fluid channel and reservoir networks is accomplished by firing 200 mJ pulses from an UV excimer laser at
Silvio Carrettin et al.
Chemical communications (Cambridge, England), (7)(7), 696-697 (2002-07-18)
Glycerol is oxidised to glyceric acid with 100% selectivity using either 1% Au/charcoal or 1% Au/graphite catalyst under mild reaction conditions (60 degrees C, 3 h, water as solvent).
Determination of specific surface area of colloidal silica by titration with sodium hydroxide.
Sears Jr GW.
Analytical Chemistry, 28(12), 1981-1983 (1956)

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