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655104

Sigma-Aldrich

Sodium hydroxide

reagent grade, 97%, powder

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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

reagent grade

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

Assay

97%

form

powder

technique(s)

cell culture | mammalian: suitable

mp

318 °C (lit.)

solubility

water: soluble 1260 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
71690367176484024
Sodium hydroxide reagent grade, 97%, powder

Sigma-Aldrich

655104

Sodium hydroxide

Essential Grade
Sodium hydroxide puriss. p.a., ACS reagent, K &#8804;0.02%, &#8805;98.0% (T), pellets

Sigma-Aldrich

71690

Sodium hydroxide

-
Sodium hydroxide beads, 16-60&#160;mesh, reagent grade, 97%

Sigma-Aldrich

367176

Sodium hydroxide

-
Sodium hydroxide reagent grade, 97%, flakes

Sigma-Aldrich

484024

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

97%

assay

≥98.0% (T)

assay

97%

assay

97%

form

powder

form

pellets

form

beads

form

flakes

mp

318 °C (lit.)

mp

318 °C (lit.)

mp

318 °C (lit.)

mp

318 °C (lit.)

General description

Sodium hydroxide, also known as lye and caustic soda, is a strong base used universally as a neutralization agent in the chemical industry, paper making, petroleum refining, cleaning compounds, and drain cleaners.

Application

Sodium hydroxide can be used as:
  • A reagent in the gold-catalyzed selective oxidation of glycerol to glyceric acid.
  • A catalyst for the cross-dehydrogenative coupling of alcohols and hydrosilanes to synthesize silyl ethers.
  • A base in the Sonogashira-type coupling of aryl halides and alkynes to synthesize ynones.

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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