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1.05544

Supelco

Potassium hydroxide solution

c(KOH)=0.1 mol/l (0,1 N) in 2-propanol, DIN ISO 6618, ready-to-use for titration in non-aqueous media, Titriplex®

Synonym(s):

Potassium hydroxide solution in 2-propanol

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1 L
$107.00
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$112.00

About This Item

UNSPSC Code:
12352305
NACRES:
NA.21

$107.00

Please contact Customer Service for Availability
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Product Name

Potassium hydroxide solution in isopropanol, acc. to DIN ISO 6618 part 1 c(KOH)=0.1 mol/l (0,1 N), Titripur®

Quality Level

200

product line

Titripur®

form

liquid

autoignition temp.

425 °C (2-Propanol)

quality

Analyzed in our ISO 17025 accredited QC lab

expl. lim.

2-13.4 % (v/v) 2-Propanol)

reaction suitability

reaction type: Acid-base reactions

concentration

0.1 M

technique(s)

titration: suitable

pH

13 (20 °C in H2O)

transition temp

flash point 12 °C (2-Propanol)

density

0.79 g/cm3 at 20 °C

storage temp.

15-25°C

Features and Benefits

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.

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Analysis Note

Form liquid
Amount-of-substance concentration 0.0995 - 0.1005 mol/L
Measurement uncertainty ± 0.0003 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.

*) The concentration of this volumetric solution decreases over time of storage. This is not a quality issue of this product, it is a property of this solution. Therefore we strongly recommend to perform a titer determination after opening the originally sealed bottle and every working day.

Legal Information

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

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Signal Word

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

53.6 °F - (2-Propanol)

Flash Point(C)

12 °C - (2-Propanol)

Certificates of Analysis (COA)

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Questions

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  1. Does this reactive meet ASTM D974 specifications?

    1 answer

    1. This item does not meet ASTM D974 specifications. Currently, there is no product option available that meets ASTM D974 specifications.

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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