1.37023

Sodium hydroxide solution

32%, EMPROVE^® EXPERT

• Synonym(s): Sodium hydroxide solution
• Linear Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00
• MDL number: MFCD00003548
• UNSPSC Code: 12352305

Properties

• product name: Sodium hydroxide solution 32%, EMPROVE^® EXPERT
• vapor pressure: 3 mmHg ( 37 °C); 8 hPa ( 20 °C)
• Quality Level: 500
• product line: EMPROVE^® EXPERT
• form: liquid
• pH: 14 (20 °C in H₂O)
• mp: 9 °C
• density: 1.35 g/cm³ at 20 °C
• storage temp.: 15-25°C
• SMILES string: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI key: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Analysis Note

Assay (acidimetric,NaOH): 32.0 - 33.0 %
Carbonate (as Na₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 70 ppm
Sulfate (SO₄): ≤ 30 ppm
Heavy metals (as Pb): ≤ 5.0 ppm
Al (Aluminium): ≤ 10 ppm
Fe (Iron): ≤ 4ppm
Ni (Nickel) *: ≤ 2.00 ppm
Residual solvents (ICH Q3C): ...excluded by production process
Filtered with 0.2 µm
This product has been manufactured from Sodium hydroxide pellets Ph Eur, BP, JP, NF and waterfor 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 (*).

Legal Information

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

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290 - H314
• pcodes: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• 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