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757527

Sigma-Aldrich

Sodium hydroxide

ultra dry, powder or crystals, 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:

vapor density

>1 (vs air)

Quality Level

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

assay

99.99% trace metals basis

form

powder or crystals

impurities

≤150.0 ppm Trace Metal Analysis

mp

318 °C (lit.)

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm3

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
655104221465367176
vibrant-m

757527

Sodium hydroxide

-
vibrant-m

655104

Sodium hydroxide

Essential Grade
vibrant-m

221465

Sodium hydroxide

-
vibrant-m

367176

Sodium hydroxide

-
Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

form

powder or crystals

form

powder

form

pellets

form

beads

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: soluble 1260 g/L at 20 °C

solubility

water: soluble 1,260 g/L at 20 °C

solubility

water: soluble 1260 g/L at 20 °C

density

2.13 g/cm3

density

2.13 g/cm3 at 20 °C

density

2.13 g/cm3 at 20 °C

density

2.13 g/cm3

impurities

≤150.0 ppm Trace Metal Analysis

impurities

-

impurities

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

impurities

-

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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