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Merck
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文件

1.11787

Supelco

Potassium hydroxide solutionin methanol

c(KOH) = 2.0 mol/l (2 N), Titripur®

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About This Item

分類程式碼代碼:
12352305

品質等級

產品線

Titripur®

形狀

liquid

自燃溫度

455 °C (Methanol)

品質

Analyzed in our ISO 17025 accredited QC lab

expl. lim.

5.5-44 % (v/v) Methanol)

反應適用性

reaction type: Acid-base reactions

濃度

0.1 M

技術

titration: suitable

pH值

14 (20 °C in H2O)

轉變溫度

flash point 7 °C

密度

0.93 g/cm3 at 20 °C

儲存溫度

15-25°C

特點和優勢

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.

分析報告

Form liquid
Amount-of-substance concentration 1.990 - 2.010 mol/L
Measurement uncertainty ± 0.006 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.

法律資訊

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

訊號詞

Danger

危險分類

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Met. Corr. 1 - Skin Corr. 1A - STOT SE 1

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 2

閃點(°F)

44.6 °F

閃點(°C)

7 °C


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