Merck 106277 Sodium arsenite solution c(NaAsO₂) 0.05 mol/l (0,1 N) Titripur 1 Lt

Katalog No: 106277.1000

Marka: Merck

3.264,96 ₺
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Merck 106277 Sodium arsenite solution c(NaAsO₂) = 0.05 mol/l (0,1 N) Titripur® Reag. USP

CAS #: 7784-46-5

Grade: Reag. USP

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Merck 106277 Sodium arsenite solution c(NaAsO₂) = 0.05 mol/l (0,1 N) Titripur® Reag. USP

 

Temel Özellikler Tablosu

CAS #Kalite Değeri
7784-46-5Reag. USP

 

Açıklama
Katalog Numarası106277

 

Ürün Bilgisi
CAS Numarası7784-46-5
GradeReag. USP
HS Kodu3822 90 00
Quality LevelMQ200

 

Fizikokimyasal Bilgiler
Yoğunluk1.005 g/m3 (20 °C)
pH Değeri9.3 (H₂O, 20 °C)

 

Özellikler
Volumetric solution in accordance to the chapter reagents of the Pharmacopoeia (USP).
Formliquid
Amount-of-substance concentration0.04975 - 0.05025
Measurement uncertainty+/- 0.00015
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 determined with standardized iodine solution (article number 1.09099). The iodine solution is standardized by sodium thiosulfate solution (article number 1.09147) which has been standardized against volumetric standard potassium iodate (article number 1.02404).
This volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 136 potassium dichromate) by means of volumetric standard potassium iodate (article number 1.02404), 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.
106277.1000

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