Accéder au contenu
Merck
Toutes les photos(3)

Principaux documents

Voir toute la documentation

223476

Sigma-Aldrich

Potassium bisulfate

reagent grade

Synonyme(s) :

Potassium hydrogen sulfate

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(3)

About This Item

Formule linéaire :
KHSO4
Numéro CAS:
7646-93-7
Poids moléculaire :
136.17
Numéro CE :
231-594-1
Numéro MDL:
MFCD00011404
Code UNSPSC :
12352302
eCl@ss :
38030413
ID de substance PubChem :
329752310
Nomenclature NACRES :
NA.21
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

reagent grade

Niveau de qualité

200

Forme

powder or crystals

Concentration

35.0-37.0% H2SO4 (titration)

Pf

214 °C (lit.)

Indice d'acide

35‑37%(as H2SO4)

Densité

2.32 g/mL at 25 °C (lit.)

Chaîne SMILES 

[K+].OS([O-])(=O)=O

InChI

1S/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1

Clé InChI

CHKVPAROMQMJNQ-UHFFFAOYSA-M

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Catégories apparentées

Description générale

Potassium bisulfate is a water soluble inorganic salt mainly used as a preservative, as a flux and also in the manufacture of fertilizers.[1]
Potassium bisulfate is an inorganic potassium salt. On heating it from 300 to 700°C, it transforms to molten form and the reactions occurring in this transition have been investigated by Raman spectra.[2] Its electrical conductance values have been evaluated (T = 0-700C, Pressure = upto 4000bars).[3]

Application

Potassium bisulfate (Potassium hydrogen sulfate) may be employed as a catalyst in the synthesis of butyl paraben[4] and methyl cinnamate.[5] It may also be used for the gravimetric estimation of beryllium in beryl.[6]
Potassium bisulfate may be used:
  • As a catalyst for the preparation of butyl paraben from p-hydroxybenzoic acid and n-butyl alcohol.[4]
  • As a promoter for the synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives via Biginelli reaction in ethylene glycol.[7]
  • As an acid catalyst for the synthesis of ethyl tert-butyl ether (ETBE) from ethanol and tert-butyl alcohol via reactive distillation.[8]
  • As a dehydrating agent for the synthesis of pyruvic acid from tartaric acid.[9]

Pictogrammes

CorrosionExclamation mark
GHS05,GHS07

Mention d'avertissement

Danger

Mentions de danger

H314,H335

Classification des risques

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

8A - 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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
STBL0464
STBK3233
STBK2194
STBK1756
STBJ7353

Vous ne trouvez pas la bonne version ?

Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Rechercher un(e) COA

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Reactive distillation for synthesizing ethyl tert-butyl ether from low-grade alcohol catalyzed by potassium hydrogen sulfate.
Matouq M, et al.
Industrial & Engineering Chemistry Research, 35(3), 982-984 (1996)
Craig BD and Anderson DS
Handbook of Corrosion Data, 634-634 null
Synthesis of Methyl Cinnamate using Potassium Bisulfate as Catalyst [J].
4Danmei LSL.
Guangzhou Chemical Industry/ Guangzhou Huagong, 2, 005-005 (2003)
Determination of beryllium and titanium with benzoylacetanilide.
Sarkar AK and Das J.
Analytical Chemistry, 39(13), 1608-1612 (1967)
Raman spectral studies of molten potassium bisulfate and vibrational frequencies of S2O7 groups.
Walrafen GE, et al.
J. Chem. Phys. , 37(3), 662-670 (1962)
Afficher tous les articles scientifiques apparentés

Questions

1–2 sur 2 questions  

  1. 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

      Utile ?

  2. 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

      Utile ?

Évaluations

Aucune valeur de notation

Filtres actifs

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique