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Sigma-Aldrich

Hydroxyde de potassium solution

45 wt. % in H2O

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About This Item

Formule linéaire :
KOH
Numéro CAS:
Poids moléculaire :
56.11
Numéro MDL:
Code UNSPSC :
12352106
eCl@ss :
38100303
ID de substance PubChem :
Nomenclature NACRES :
NA.21
Forme:
liquid
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Forme

liquid

Niveau de qualité

Concentration

43.0-47.0 wt. % (KOH basis, by HCl, titration)
45 wt. % in H2O

Densité

1.456 g/mL at 25 °C

Chaîne SMILES 

[K+].[O-][H]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

Clé InChI

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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Description générale

Potassium hydroxide (KOH) solution is a strong alkali widely used in chemical synthesis. Van Slyke apparatus and Hildebrand adsorption technique have been utilized to determine the solubility of oxygen in different concentration of KOH solution.[1]

Application

Potassium hydroxide solution may be used in the following processes:
  • Depolymerization of poly(ethylene terephthalate) (PET) flakes.[2]
  • Synthesis of potassium bicarbonate and potassium carbonate.[3]
  • As an eluent in the nonsuppressor ion chromatography to separate and determine inorganic and organic anions.[4]
  • Saponification of fruit seed oil to determine tocopherols and tocotrienols.[5]

Pictogrammes

CorrosionExclamation mark

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

The solubility and diffusion coefficient of oxygen in potassium hydroxide solutions.
Davis RE, et al.
Electrochimica Acta, 12(3), 287-297 (1967)
Nonsuppressor ion chromatography of inorganic and organic anions with potassium hydroxide as eluent.
Okada T and Kuwamoto T.
Analytical Chemistry, 55(7), 1001-1004 (1983)
Kinetics of depolymerization of poly (ethylene terephthalate) in a potassium hydroxide solution.
Wan BZ, et al.
Industrial & Engineering Chemistry Research, 40(2), 509-514 (2001)
Native oils from apple, blackcurrant, raspberry, and strawberry seeds as a source of polyenoic fatty acids, tocochromanols, and phytosterols: a health implication.
Pieszka M, et al.
Journal of Chemistry, 2015 (2015)
Ledgard J.
The Preparatory Manual of Explosives., 79-79 (2007)

Questions

1–3 sur 3 questions  
  1. Is the 45 wt% specified w/w or w/v?

    1 réponse
    1. The unit is weight/weight (w/w).

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

    1 réponse
    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 réponse
    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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