1.09138

Supelco

氢氧化钠 溶液

c(NaOH) = 0.5 mol/l (0.5 N), Titripur®

线性分子式:
NaOH
CAS号:
分子量:
40.00
MDL编号:

storage conditions

Store at +15°C to +25°C.

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特点和优势

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.

包装

产品SKU编码(SKU-pack size number)尾数是“3”,如xxxxxx1003或xxxxxxx 4003,代表其为SmartChemical产品,通过产品标签上的RFID标记可将数据无缝传输到仪器。详情参见www.sigmaaldrich.com/SmartChemicals

联系

替代品:SX0607E; SX0607E-9; SX0607E-3

分析说明

Form liquid
Amount-of-substance concentration 0.4975 - 0.5025 mol/L
Measurement uncertainty ± 0.0015 mol/L
Traceability NIST SRM

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.

法律信息

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

分析证书

原产地证书 (CofO)

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