216615

Potassium chromate

ACS reagent, ≥99.0%

• Formule linéaire : K₂CrO₄
• Numéro CAS: 7789-00-6
• Poids moléculaire : 194.19
• Numéro CE : 232-140-5
• Numéro MDL: MFCD00011368
• Code UNSPSC : 12352300
• ID de substance PubChem : 329752190
• Nomenclature NACRES : NB.24

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 200
• Densité de vapeur: 6.7 (vs air)
• Pureté: ≥99.0%
• Forme: crystals
• Impuretés: ≤0.005% insolubles
• pH: 8.6-9.8 (25 °C, 5%)
• Pf: 971 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.03%
• Traces de cations: Ca: ≤0.005%; Na: ≤0.02%
• Chaîne SMILES: [K+].[K+].[O-][Cr]([O-])(=O)=O
• InChI: 1S/Cr.2K.4O/q;2*+1;;;2*-1
• Clé InChI: XMXNVYPJWBTAHN-UHFFFAOYSA-N

Description

Description générale

Potassium chromate (K₂CrO₄) is an inorganic solid compound. It is mainly used as an oxidizing agent in the synthesis of organic compound.

Application

Potassium chromate is used as an oxidizing agent:

• In the conversion of primary and secondary alcohol into aldehydes and ketones using tetrabutylammonium hydrogen sulfate catalyst.

Potassium chromate is also used:

• To prepare magnetoactive compound by reacting with iron(II) sulfate.
• As a reagent in the conversion primary allylic and benzylic halides to aldehydes.

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H315,H317,H319,H335,H340,H350i,H410
• Conseils de prudence: P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable