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1.58793

Supelco

Sodium hydroxide solution

50%, for analysis EMSURE®

Synonym(s):

Sodium hydroxide solution

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About This Item

Linear Formula:
NaOH
CAS Number:
Molecular Weight:
40.00
MDL number:
UNSPSC Code:
12352305
NACRES:
NA.21

product name

Sodium hydroxide solution 50%, for analysis EMSURE®

Agency

suitable for DIN 38407-42
suitable for EPA 533
suitable for EPA 8327
suitable for EPA OTM-45

Quality Level

vapor pressure

2 hPa ( 20 °C)
3 mmHg ( 37 °C)

product line

EMSURE®

form

liquid

concentration

49.0-51.0% NaOH

impurities

≤0.0003% Total nitrogen (N)
≤0.0005% Al (Aluminium)
≤0.0005% Fe (Iron)
≤0.0005% Heavy metals (as Pb)
≤0.0005% Phosphate (PO4)
≤0.005% Silicate (SiO2)
≤0.005% Sulfate (SO4)
≤0.01% Chloride (Cl)
≤0.01% K (Potassium)

color

APHA: ≤10

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

SMILES string

[OH-].[Na+]

InChI

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

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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Application


  • Sustainable Brick and Mortar Fabrication: The sodium hydroxide solution is utilized in the geopolymerization of construction debris, offering an eco-friendly solution for creating sustainable building materials. This innovative application not only recycles waste but also significantly reduces the carbon footprint of new constructions (Rahimpour et al., 2024).

  • Water-Based Drilling Fluids: In the oil and gas industry, sodium hydroxide solution is used to modify bovine bone glue, enhancing its properties as an additive in water-based drilling fluids. This research points to improvements in the environmental aspects and operational efficiency of drilling operations (Du et al., 2024).

  • Titration Calorimeters Calibration: The reaction of potassium hydrogen phthalate with excess sodium hydroxide (solution) serves as a standard calibration method for titration calorimeters. This application is essential in various scientific research and industrial applications to ensure accuracy and precision in thermal analysis (Kenealey et al., 2024).

  • Alkaline Activation of Binders: The sodium hydroxide solution is critical in the alkaline activation process of binders used in construction, comparing different materials to optimize performance and sustainability. This study impacts the development of next-generation construction materials (Alves et al., 2024).

Analysis Note

Assay (acidimetric, as NaOH): 49.0 - 51.0 %
Carbonate (as Na₂CO₃): ≤ 0.2
Color (Hazen): ≤ 10 Hazen
Chloride (Cl): ≤ 0.01 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.02 %

Legal Information

EMSURE 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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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