216615

Potassium chromate

ACS reagent, ≥99.0%

• Fórmula linear: K₂CrO₄
• Número CAS: 7789-00-6
• Peso molecular: 194.19
• Número CE: 232-140-5
• Número MDL: MFCD00011368
• Código UNSPSC: 12352300
• ID de substância PubChem: 329752190
• NACRES: NB.24

Propriedades

• grau: ACS reagent
• densidade de vapor: 6.7 (vs air)
• Ensaio: ≥99.0%
• forma: crystals
• Impurezas: ≤0.005% insolubles
• pH: 8.6-9.8 (25 °C, 5%)
• pf: 971 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.03%
• traços de cátion: Ca: ≤0.005%; Na: ≤0.02%
• cadeia de caracteres SMILES: [K+].[K+].[O-][Cr]([O-])(=O)=O
• InChI: 1S/Cr.2K.4O/q;2*+1;;;2*-1
• chave InChI: XMXNVYPJWBTAHN-UHFFFAOYSA-N

Descrição

Descrição geral

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

Aplicação

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.

Informações de segurança

• Pictogramas: GHS08,GHS07,GHS09
• Palavra indicadora: Danger
• Frases de perigo: H315,H317,H319,H335,H340,H350i,H410
• Declarações de precaução: P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Classificações de perigo: Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable