216615

Kaliumchromat

ACS reagent, ≥99.0%

• Lineare Formel: K₂CrO₄
• CAS-Nummer: 7789-00-6
• Molekulargewicht: 194.19
• EG-Nummer: 232-140-5
• MDL-Nummer: MFCD00011368
• UNSPSC-Code: 12352300
• PubChem Substanz-ID: 329752190
• NACRES: NB.24
• Assay: ≥99.0%
• Qualität: ACS reagent
• Form: crystals

Eigenschaften

• Qualität: ACS reagent
• Qualitätsniveau: 200
• Dampfdichte: 6.7 (vs air)
• Assay: ≥99.0%
• Form: crystals
• Verunreinigungen: ≤0.005% insolubles
• pH-Wert: 8.6-9.8 (25 °C, 5%)
• mp (Schmelzpunkt): 971 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤0.005%; sulfate (SO₄^2-): ≤0.03%
• Kationenspuren: Ca: ≤0.005%; Na: ≤0.02%
• SMILES String: [K+].[K+].[O-][Cr]([O-])(=O)=O
• InChI: 1S/Cr.2K.4O/q;2*+1;;;2*-1
• InChIKey: XMXNVYPJWBTAHN-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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

Anwendung

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.

Sicherheitshinweise

• Piktogramme: GHS08,GHS07,GHS09
• Signalwort: Danger
• H-Sätze: H315,H317,H319,H335,H340,H350i,H410
• P-Sätze: P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable