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1.09137 Supelco

Sodium hydroxide solution

c(NaOH) = 1 mol/l (1 N) Titripur® Reag. Ph Eur,Reag. USP

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Titration, Volumetric Titration Reagents
Quality Level   100
grade   Reag. Ph. Eur.
  Reag. USP
Agency/Method   ISO 17025
vapor pressure   3 mmHg ( 37 °C)
form   liquid
reaction suitability   reaction type: Acid-base reactions
concentration   1 M
application(s)   titration: suitable
pH   13.7 (20 °C in H2O)
density   1.04 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

Features and Benefits

Accreditation:
This volumetric solution is certified according to DIN EN ISO/IEC 17025. The accreditation certificate can be found at www.sigmalaldrich.com/ISO17025

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Titripac packaging - all SKU-pack size numbers ending "4000, 4003, 9010, 9013" - more information on www.sigmaaldrich.com/Titripac

Analysis Note

Form: liquid
Amount-of-substance concentration: 0.995 - 1.005
Measurement uncertainty: +/- 0.003
Traceability: NIST SRM
The concentration is determined by volumetric titration and refers to 20°C.
The certified value of this volumetric solution was determined with hydrochloric acid standard solution (article number 1.09057). The hydrochloric acid standard solution is standardized and traceable to a primary standard from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 723 Tris(hydroxymethyl)aminomethane) by means of volumetric standard Tris(hydroxymethyl)aminomethane (Art. 1.02408). This volumetric standard is certified by the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%. All measurements are carried out in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany.
Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.

Legal Information

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

Safety & Documentation

Safety Information

Protocols & Articles

Articles

Analytical Method – Cobalt in Wastewater from Coating Resins and Coating Materials

Cobalt and cobalt compounds can occur in the wastewater during the production of “aqueous dispersion paints, resin-bound plasters, and water-dilutable coatings, paint resins, and solvent-based coatin...
Keywords: Absorption, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, PAGE, Sample preparations

Analytical Method – Cobalt in Wastewater from Inorganic Pigments

Cobalt and cobalt compounds can occur in the wastewater during the production of “inorganic pigments, e.g. mixed-phase pigments, pigment mixtures and frits”1.
Keywords: Absorption, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, PAGE, Sample preparations

Analytical Method – Cobalt in Wastewater from Printing Plates, Print Materials, and Graphic Products

Cobalt and cobalt compounds can occur in the wastewater during the production of printing plates, print materials, and graphic products, including the offset-printing and sieve-printing sectors.1
Keywords: Absorption, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, PAGE, Sample preparations

Analytical Method – Cobalt in Wastewater from Production of Ceramics

Cobalt and cobalt compounds can occur in the wastewater during the production of ceramics. If piezo ceramics, dish products and sanitary ceramics are produced, the wastewater can be discharged if a d...
Keywords: Absorption, Ceramics, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, PAGE, Sample preparations

Analytical Method – Cobalt in Wastewater from metal-processing and metal-working Processes

Cobalt and cobalt compounds can occur in the wastewater during “metal-processing and metal-working processes, including anodic oxidation plants and the manufacture of circuit boards”1
Keywords: Absorption, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, Oxidations, Sample preparations

Analytical Method – Cobalt in wastewater from the production and casting of non-ferrous metals

Cobalt and cobalt compounds can occur in the wastewater during the production and casting of the “non-ferrous metals lead, copper, zinc, aluminum and their related by-products as well as in the manuf...
Keywords: Absorption, Digestions, Indicators, Inductively coupled plasma, Mass spectrometry, PAGE, Sample preparations

Analytical Method – Silicate in Antifreeze Agents and Corrosion Inhibitors

Corrosion is defined as the transformation of a material resulting from the direct contact with its environment. The corrosion of a material generally leads to an impairment of the proper function of...
Keywords: Automotive, Indicators, PAGE, Reductions, Sample preparations, transformation

Analytical Method: Aluminium (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 100594  Spectroquant® Aluminium Cell Test Cat.No. 114825  Spectroquant® Aluminium Test Cat.No. 100317  Hydrochloric acid 37 % for analysis Cat.No. 1091...
Keywords: Indicators

Analytical Method: Analytical Quality Assurance, Standard for Formaldehyde

Reagents: Cat.No. 104003  Formaldehyde solution min. 37 % for analysis Cat.No. 109099  Iodine solution 0.05 mol I2/l 0.1 N solution Cat.No. 109147  Sodium thiosulfate solution 0.1 mol/l 0.1 N solutio...

Analytical Method: Chloride in meat and sausage products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114730  Spectroquant® Chloride Cell Test Cat.No. 114897  Spectroquant® Chloride Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 110537  ...
Keywords: Sample preparations

Analytical Method: Chromium (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulfuric acid 0.5 mol/l Cat.No. 109535  MColorpHastTM Universal indicator strips pH 0 - 14 Th...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Chromium (total) in electroplating wastewater

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulfuric acid 0.5 mol/l Cat.No. 109535  MColorpHastTM Universal indicator strips pH 0-14 Ther...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Copper (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114553  Spectroquant® Copper Cell Test Cat.No. 114767  Spectroquant® Copper Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulf...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Copper (total) in electroplating wastewater

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. 109137  Sodium ...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Iron (total) in effluents

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. 109137  Sodium hydroxide s...
Keywords: Digestions, Indicators, Precipitation, Sample preparations

Analytical Method: Iron (total) in mineral water

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 peaty water

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: Iron in drinking water and boiler water

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. 114761  Spectroquant...
Keywords: Indicators, Sample preparations

Analytical Method: Iron in fertilizers

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 in industrial water

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. 114761  Spectroquant...
Keywords: Indicators, Sample preparations

Analytical Method: Lead (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114833  Spectroquant® Lead Cell Test Cat.No. 109717  Spectroquant® Lead Test Cat.No. 100456  Nitric acid 65 % for analysis Cat.No. 107209  Hydrogen per...
Keywords: Indicators, Sample preparations

Analytical Method: Lead in waste water with high concentrations of calcium

Cat.No. 114947  Rectangular cells 20 mm and/or Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114833  Spectroquant® Lead Cell Test Cat.No. 109717  Spectroquant® Lead Test Cat.No. 106689  Sodium diet...
Keywords: Evaporation, Indicators, Industries, Sample preparations

Analytical Method: Manganese (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 100816  Spectroquant® Manganese Cell Test Cat.No. 114770  Spectroquant® Manganese Test Cat.No. 101846  Spectroquant® Manganese Test Cat.No. 100317  Hyd...
Keywords: Indicators, Sample preparations

Analytical Method: Manganese (total) in mineral water (Food and Beverages)

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 100816  Spectroquant® Manganese Cell Test Cat.No. 114770  Spectroquant® Manganese Test Cat.No. 101846  Spectroquant® Manganese Test Cat.No. 100317  Hyd...
Keywords: Indicators, Sample preparations

Analytical Method: Manganese (total) in mineral water

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 100816  Spectroquant® Manganese Cell Test Cat.No. 114770  Spectroquant® Manganese Test Cat.No. 101846  Spectroquant® Manganese Test Cat.No. 100317  Hyd...
Keywords: Indicators, Sample preparations

Analytical Method: Nickel (total) in effluents (Photometry, DIN decomposition)

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100456  Nitric acid 65 % for analysis Cat.No. 107209  Hydrone ...
Keywords: Indicators, Sample preparations

Analytical Method: Nickel (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulf...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Nickel (total) in electroplating wastewater

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulf...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Nickel (total) in pickling baths (Others)

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100317  Hydrochloric acid 37 % for analysis Cat.No. 104944  Po...
Keywords: Indicators, Sample preparations

Analytical Method: Nickel (total) in pickling baths

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114554  Spectroquant® Nickel Cell Test Cat.No. 114785  Spectroquant® Nickel Test Cat.No. 100317  Hydrochloric acid 37 % for analysis Cat.No. 104944  Po...
Keywords: Indicators, Sample preparations

Analytical Method: Nitrite in meat and sausage products

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114547  Spectroquant® Nitrite Cell Test Cat.No. 114776  Spectroquant® Nitrite Test Cat.No. 110537  Carrez Clarification Cat.No. 109137  Sodium hydroxid...
Keywords: Sample preparations

Analytical Method: Palladium in water and waste water

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: Indicators

Analytical Method: Phosphorus (total) in effluents

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulfuric acid 0.5 mol/l Cat.No. 109535  MColorpHastTM Universal indicator strips pH 0 - 14 Th...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Phosphorus (total) in electroplating wastewater

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109072  Sulfuric acid 0.5 mol/l Cat.No. 109535  MColorpHastTM Universal indicator strips pH 0 - 14 Th...
Keywords: Digestions, Indicators, 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: Sulfite in apples treated with sulfite

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114394  Spectroquant® Sulfite Cell Test Cat.No. 101746  Spectroquant® Sulfite Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 109533  MC...
Keywords: Indicators, Sample preparations

Analytical Method: Sulfite in cider (Brewery)

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114394  Spectroquant® Sulfite Cell Test Cat.No. 101746  Spectroquant® Sulfite Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 116754  Wa...
Keywords: Sample preparations

Analytical Method: Sulfite in cider

Cat.No. 114944  Rectangular cells 50 mm Cat.No. 114394  Spectroquant® Sulfite Cell Test Cat.No. 101746  Spectroquant® Sulfite Test Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 116754  Wa...
Keywords: Sample preparations

Analytical Method: Tartaric acid in water

Reagents: Cat.No. 101512  Silver nitrate for analysis Cat.No. 100063  Acetic acid 100 % for analysis Cat.No. 116754  Water for analysis Cat.No. 109137  Sodium hydroxide solution 1 mol/l Cat.No. 10626...

Analytical Method: Zinc (total) in effluents (Photometry, DIN decomposition)

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. 100456  Nitric acid ...
Keywords: Indicators, Sample preparations

Analytical Method: Zinc (total) in effluents

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. 109137  Sodium hydro...
Keywords: Digestions, Indicators, Sample preparations

Analytical Method: Zinc (total) in electroplating wastewater

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. 109137  Sodium hydro...
Keywords: Digestions, Indicators, Sample preparations

Application Note – Peroxidase in Vegetables

Peroxidases are found in almost all vegetables. The activity of these enzymes can be an indicator of the vegetable quality as it normally increases during ripening. Also, the peroxidase activity is d...
Keywords: Catalysis, Indicators, Phase transitions, Sample preparations, Size-exclusion chromatography

Application Notes Reflectometry – Nitrate in Milk Powder

Reagents: Catalog No. 116971 Reflectoquant® Nitrate Test Catalog No. 116995 Reflectoquant® Nitrate Test Catalog No. 117246 Reflectometer RQflex® 20 Catalog No. 110537 Carrez clarification Catalog No....
Keywords: Sample preparations

Application Notes Reflectometry – Nitrate in Milk

Reagents: Catalog No. 116971 Reflectoquant® Nitrate Test Catalog No. 116995 Reflectoquant® Nitrate Test Catalog No. 117246 Reflectometer RQflex® 20 Catalog No. 110537 Carrez clarification Catalog No....
Keywords: Sample preparations

Application Notes Reflectometry – Sulfite in Dried Fruits

This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus)
Keywords: Sample preparations, Titrations

Application Notes Reflectometry – Sulfite in Potato Products

This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus)
Keywords: Sample preparations

Application Notes: Reflectometry – Nitrite in Milk Powder

Catalog No. 116973 Reflectoquant® Nitrite Test Catalog No. 110537 Carrez clarification Catalog No. 109137 Sodium hydroxide solution 1 M Catalog No. 117246 Reflectometer RQflex® 20
Keywords: Sample preparations

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