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1.05590 Supelco

Sodium hydroxide solution about 32%

(for the determination of nitrogen) for analysis EMSURE®

Synonym: Sodium hydroxide solution

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Properties

Quality Level   300
vapor pressure   3 mmHg ( 37 °C)
  8 hPa ( 20 °C)
pH   14 (20 °C in H2O)
mp   9 °C
density   1.35 g/cm3 at 20 °C
SMILES string   [OH-].[Na+]
InChI   1S/Na.H2O/h;1H2/q+1;/p-1
InChI key   HEMHJVSKTPXQMS-UHFFFAOYSA-M
storage conditions   Store at +15°C to +25°C.

Description

Analysis Note

Assay (acidimetric,NaOH): ≥ 32.0 %
Carbonate (as Na₂CO₃): ≤ 0.2 %
Chloride (Cl): ≤ 0.004 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.0001 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %

Legal Information

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

Safety & Documentation

Safety Information

Protocols & Articles

Articles

Analytical Method: Aluminium (total) in effluents, high organic content

Instrument and Reagents: Cat.No. 173016  Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017  Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018  Spectroquant® UV/VIS Spec...
Keywords: Indicators, Sample preparations

Analytical Method: Ammonium in effluents with high COD value

Instruments and Reagents: Cat.No. 173016  Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017  Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018  Spectroquant® UV/VIS Spe...
Keywords: Digestions, Oxidations, Sample preparations

Analytical Method: Calcium in tomato (Food and Beverages)

Cat.No. 114944  Rectangular cells 50 mm  Cat.No. 114815  Spectroquant Calcium Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 107209  Hydrogen peroxide 30 % (Perhydrol®) for analysi...
Keywords: Inductively coupled plasma, Mass spectrometry, Sample preparations

Analytical Method: Calcium in tomato

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114815  Spectroquant Calcium Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 107209  Hydrogen peroxide 30 % (Perhydrol®) for analysis...
Keywords: Inductively coupled plasma, Mass spectrometry, Sample preparations

Analytical Method: Chromium (total) in dairy products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114552  Spectroquant® Chromium Cell Test Cat.No. 114758  Spectroquant® Chromium Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 10720...
Keywords: Sample preparations

Analytical Method: Copper (total) in effluents, high organic content

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114553  Spectroquant® Copper Cell Test Cat.No. 114767  Spectroquant® Copper Test Cat.No. 100731  Sulfuric acid 96 % for analysis Cat.No. 107209  Hydrog...
Keywords: Indicators, Sample preparations

Analytical Method: Copper (total) in wine

Cat.No. 114947  Rectangular cells 20 mm and/or Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114553  Spectroquant® Copper Cell Test Cat.No. 114767  Spectroquant® Copper Test Cat.No. 110731  Sulfuri...
Keywords: Indicators, Sample preparations

Analytical Method: Heavy metals in textiles

Cat.No. 114947  Rectangular cells 20 mm and/or Cat.No. 114944  Rectangular cells 50 mm Cat.No. 109531  MColorpHastTM pH-indicator strips pH 0 - 6 Cat.No. 105432  Ammonia solution 25 % for analysis Ca...
Keywords: Digestions, Indicators

Analytical Method: Iron (total) in electrophoretic paints

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114549  Spectroquant® Iron Cell Test Cat.No. 114896  Spectroquant® Iron Cell Test* Cat.No. 114761  Spectroquant® Iron Test Cat.No. 100796  Spectroquant...
Keywords: Indicators, Sample preparations

Analytical Method: Iron (total) in wine

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114549  Spectroquant® Iron Cell Test Cat.No. 114761  Spectroquant® Iron Test Cat.No. 100796  Spectroquant® Iron Test Cat.No. 100731  Sulfuric acid 95 -...
Keywords: Indicators, Sample preparations

Analytical Method: Nickel (total) in dairy products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 107209  H...
Keywords: Sample preparations

Analytical Method: Nickel (total) in effluents, high organic content

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 107209  H...
Keywords: Indicators, Sample preparations

Analytical Method: Nickel (total) in electrophoretic paints

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis Cat.No. 107210  H...
Keywords: Indicators, Sample preparations

Analytical Method: Nitrogen (total) in dairy products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114537  Spectroquant® Nitrogen Cell Test Cat.No. 100613  Spectroquant® Nitrogen Cell Test* Cat.No. 114763  Spectroquant® Nitrogen Cell Test* Cat.No. 10...
Keywords: Sample preparations

Analytical Method: Nitrogen (total) in fish meal

Cat.No. 173632  Spectroquant® Colorimeter Move 100 Cat.No. 114946  Rectangular cells 10 mm and/or
Keywords: Oxidations, Sample preparations

Analytical Method: Phosphorus (Total) in Beer

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114543  Spectroquant® Phosphate Cell Test Cat.No. 114729  Spectroquant® Phosphate Cell Test Cat.No. 114848  Spectroquant® Phosphate Test Cat.No. 100731...
Keywords: Oxidations, Sample preparations

Analytical Method: Phosphorus (total) in dairy products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114543  Spectroquant® Phosphate Cell Test Cat.No. 114729  Spectroquant® Phosphate Cell Test Cat.No. 114848  Spectroquant® Phosphate Test Cat.No. 100731...
Keywords: Indicators, Sample preparations

Analytical Method: Phosphorus (total) in fish meal

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114543  Spectroquant® Phosphate Cell Test Cat.No. 114729  Spectroquant® Phosphate Cell Test Cat.No. 114848  Spectroquant® Phosphate Test Cat.No. 100731...
Keywords: Oxidations, Sample preparations

Analytical Method: Phosphorus (total) in fruit juice concentrates

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114543  Spectroquant® Phosphate Cell Test Cat.No. 114729  Spectroquant® Phosphate Cell Test Cat.No. 114848  Spectroquant® Phosphate Test Cat.No. 100731...
Keywords: Oxidations, Sample preparations

Analytical Method: Platinum in water and wastewater

Instruments: Cat.No. 173016  Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017  Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018  Spectroquant® UV/VIS Spectrophotomete...
Keywords: Indicators

Analytical Method: Potassium in soils

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114562  Spectroquant® Potassium Cell Test Cat.No. 100615  Spectroquant® Potassium Cell Test Cat.No. 105590  Sodium hydroxide 32 % for analysis Cat.No. ...
Keywords: Sample preparations

Analytical Method: Silver (total) in red and white wine

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114831  Spectroquant® Silver Test Cat.No. 100731  Sulfuric acid 95 - 97 % for analysis  Cat.No. 107209  Hydrogen peroxide 30 % (Perhydrol®) for analysi...
Keywords: Indicators, Sample preparations

Analytical Method: Zinc (Total) in Beer Worts

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114566  Spectroquant® Zinc Cell Test Cat.No. 100861  Spectroquant® Zinc Cell Test Cat.No. 114832  Spectroquant® Zinc Test* Cat.No. 100731  Sulfuric aci...
Keywords: Indicators, Sample preparations

Analytical Method: Zinc (total) in effluents, high organic content

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114566  Spectroquant® Zinc Cell Test Cat.No. 100861  Spectroquant® Zinc Cell Test Cat.No. 114832  Spectroquant® Zinc Test* Cat.No. 100731  Sulfuric aci...
Keywords: Indicators, Sample preparations

Analytical Method: Zinc (total) in red and white wine

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114566  Spectroquant® Zinc Cell Test Cat.No. 100861  Spectroquant® Zinc Cell Test Cat.No. 114832  Spectroquant® Zinc Test* Cat.No. 100731  Sulfuric aci...
Keywords: Indicators, Sample preparations

Caustics Alkalis and Bases EMSURE®, EMPLURA®

High Purity, Defined Quality: Caustic Alkalis and Bases Our comprehensive product range of caustic alkalis and bases for analysis includes sodium and potassium hydroxide pellets and the corresponding...

EMSURE® Premium grade products

The EMSURE® quality grade designates our premium classical Inorganics and Solvents, which are optimized for regulated analyses and highly demanding lab applications. These products offer the highest ...
Keywords: Solvents

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