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306576

Sigma-Aldrich

Sodium hydroxide

pellets, semiconductor grade, 99.99% trace metals basis

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Synonym(s):
‘Caustic soda’
Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

semiconductor grade

Quality Level

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

Assay

99.99% trace metals basis

form

pellets

technique(s)

HPLC: suitable

impurities

<1% Na2CO3

mp

318 °C (lit.)

solubility

water: soluble 1,260 g/L at 20 °C

density

2.13 g/cm3 at 20 °C

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
221465655104795429
Sodium hydroxide pellets, semiconductor grade, 99.99% trace metals basis

Sigma-Aldrich

306576

Sodium hydroxide

-
Sodium hydroxide ACS reagent, &#8805;97.0%, pellets

Sigma-Aldrich

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Sodium hydroxide

-
Sodium hydroxide reagent grade, 97%, powder

Sigma-Aldrich

655104

Sodium hydroxide

Essential Grade
Sodium hydroxide anhydrous, free-flowing, pellets, Redi-Dri&#8482;, ACS reagent, &#8805;97%

Sigma-Aldrich

795429

Sodium hydroxide

-
vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

assay

99.99% trace metals basis

assay

≥97.0%

assay

97%

assay

≥97%

form

pellets

form

pellets

form

powder

form

pellets

impurities

<1% Na2CO3

impurities

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

impurities

-

impurities

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

General description

Sodium hydroxide (caustic soda, NaOH) is a water-soluble inorganic base with a wide range of industrial applications such as titration methods, dissolution testing, and pH adjusting. It is also used as a precipitant to precipitate transition metal hydroxides.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

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


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Chemoselective, solvent-free aldol condensation reaction.
Raston CL and Scott JL.
Green Chemistry, 22(2), 49-52 (2000)
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
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 Chevallet et al.
Electrophoresis, 19(11), 1901-1909 (1998-09-18)
Severe quantitative loss of protein is often observed in high-resolution two-dimensional electrophoresis of membrane proteins, while the resolution is usually not affected. To improve the solubility of proteins in this technique, we tested denaturing cocktails containing various detergents and chaotropes.
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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