1.11787

Potassium hydroxide solution

c(KOH) = 2.0 mol/l (2 N) in methanol, ready-to-use volumetric solution for titration in non-aqueous media, Titriplex^®

• UNSPSCコード: 12352305
• NACRES: NA.21

特性

• product name: Potassium hydroxide solutionin methanol, c(KOH) = 2.0 mol/l (2 N), Titripur^®
• 品質水準: 200
• 製品種目: Titripur^®
• 形状: liquid
• 自己発火温度: 455 °C (Methanol)
• 品質: Analyzed in our ISO 17025 accredited QC lab
• expl. lim.: 5.5-44 % (v/v) Methanol)
• 反応適合性: reaction type: Acid-base reactions
• 濃度: 0.1 M
• テクニック: titration: suitable
• pH: 14 (20 °C in H₂O)
• 転移温度: flash point 7 °C
• 密度: 0.93 g/cm³ at 20 °C
• 保管温度: 15-25°C

詳細

特徴および利点

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.

アナリシスノート

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.

法的情報

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

安全性情報

• ピクトグラム: GHS02,GHS05,GHS06,GHS08
• シグナルワード: Danger
• 危険有害性情報: H225 - H290 - H301 + H311 + H331 - H314 - H370
• 注意書き: P210 - P233 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危険有害性の分類: 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
• 保管分類コード: 3 - Flammable liquids
• WGK: WGK 2
• 引火点(°F): 44.6 °F
• 引火点(℃): 7 °C