MilliporeSigma
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1.06467

Supelco

Sodium hydroxide

granulated EMPLURA®

Synonym(s):
‘Caustic soda’
Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
MDL number:
EC Index Number:
215-185-5

vapor density

>1 (vs air)

Quality Level

vapor pressure

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

product line

Emplura®

assay

≥99% NaOH basis (acidimetric)

form

granular

pH

>14 (20 °C, 100 g/L in H2O)

mp

318 °C (lit.)

solubility

1090 g/L

density

2.13 g/mL at 20 °C

anion traces

carbonate (as Na2CO3): ≤1%
chloride (Cl-): ≤0.2%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.002%
Fe: ≤0.002%
heavy metals (as Pb): ≤0.002%

storage temp.

2-30°C

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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Packaging

50 kg in Fibre carton

Analysis Note

Assay (acidimetric,NaOH): ≥ 98.0 %
Carbonate (as Na₂CO₃): ≤ 1.0 %
Identity: passes test
Chloride (Cl): ≤ 0.2 %
Sulfate (SO₄): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.002 %
Al (Aluminium): ≤ 0.002 %
Fe (Iron): ≤ 0.002 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

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

Certificate of Analysis

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Certificate of Quality

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