Merck 109139 Sodium hydroxide solution c(NaOH) 0.25 mol/l (0.25 N) Titripur 1 Lt

Merck 109139 Sodium hydroxide solution c(NaOH) 0.25 mol/l (0.25 N) Titripur 1 Lt

Katalog No: 109139.1000

Marka: Merck

1.170,00 ₺
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Merck 109139 Sodium hydroxide solution c(NaOH) = 0.25 mol/l (0.25 N) Titripur®

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Merck 109139 Sodium hydroxide solution c(NaOH) = 0.25 mol/l (0.25 N) Titripur®

 

 

Açıklama
Katalog Numarası109139

 

Ürün Bilgisi
HS Kodu2815 12 00
Quality LevelMQ200

 

Fizikokimyasal Bilgiler
Yoğunluk1.01 g/cm3 (20 °C)
pH Değeri13.5 (H₂O, 20 °C)

 

Özellikler
Formliquid
Amount-of-substance concentration0.24875 - 0.25125
Measurement uncertainty0.00075
TraceabilityNIST SRM
Accreditation: This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.
The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 84 potassium hydrogen phthalate) by means of volumetric standard potassium hydrogen phthalate (article number 1.02400), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.
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.
109139.1000

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