Sodium hydroxide 0.33 mol/l (1/3 N) in aqueous solution, Titripur® volumetric solution, Supelco®

Supplier: Merck

Synonyms: Caustic soda

M-Clarity™ quality level = MQ100

1.05595.1000EA 24.2 EUR
1.05595.1000 1.05595.2500 1.05595.9010
Sodium hydroxide 0.33 mol/l (1/3 N) in aqueous solution, Titripur® volumetric solution, Supelco®
Sodium hydroxide

Stability of product in Titripac packaging: Merck have carried out testing to show that products are stable for 36 months when in use and opened. Please see Technical report (ProductPage) in the Related Information tab below.

Formula: NaOH
MW: 40 g/mol
Boiling Pt: ∼105 °C (1013 hPa)
Density: 1,02 g/cm³ (25 °C)
Storage Temperature: Ambient
MDL Number: MFCD00003548
CAS Number: 1310-73-2
EINECS: 215-185-5
UN: 1824

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Specification Test Results

Form liquid
Amount-of-substance concentration 0.3332 - 0.3350
Measurement uncertainty +/- 0.0010
Traceability NIST SRM
The concentration is determined by volumetric titration and refers to 20°C.
The certified value is traceable to a primary standard from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 84 potassium hydrogen phthalate) by means of volumetric standard potassium hydrogen phthalate(Art. 1.02400).
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 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.

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