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Merck
CN

1.00238

Sodium hydroxide solution

50%, EMPROVE® EXPERT

Synonym(s):

Natriumhydroxidlösung

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About This Item

UNSPSC Code:
12352305

Key Documents

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Product Name

Sodium hydroxide solution 50%, EMPROVE® EXPERT

vapor pressure

2 hPa ( 20 °C)

product line

EMPROVE® EXPERT

form

liquid

pH

14 (20 °C, 89 g/L in H2O)

bp

135 °C/1013 hPa

mp

12 °C

density

1.52 g/cm3 at 20 °C

storage temp.

15-25°C

Quality Level

500

Related Categories

Analysis Note

Assay (acidimetric,NaOH)49.0 - 50.0 %Carbonate (as Na₂CO₃)≤ 1.0 %Chloride (Cl)≤ 100 ppmSulfate (SO₄)≤ 30 ppmHeavy metals (as Pb)≤ 5.0 ppmAl (Aluminium)≤ 10 ppmFe (Iron)≤ 5 ppmNi (Nickel) *≤ 2.00 ppmResidual solvents (ICH Q3C)...excluded by production processFiltered with 0.2 µm
This product has been manufactured from Sodium hydroxide pellets Ph Eur, BP, JP, NF and water for injection (wfi) acc. USP which conforms with highly purified water (hpw) acc. Ph Eur.
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).

General description

EMPROVE® EXPERT

Legal Information

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

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

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