Potassium chromate

• Catalog No.: 31250
• CAS Number: 7789-00-6
• M. F.: CrK2O4
• M. W.: 194.1903
• Purity: ≥99.5%

SYNONYMS

• Title: 铬酸钾
• IUPAC name: dipotassium dioxochromiumbis(olate)
• IUPAC Traditional name: dipotassium chromate(2-)

DATABASE IDS

• MDL Number: MFCD00011368
• PubChem SID: 24858896
• CAS Number: 7789-00-6
• EC Number: 232-140-5

PROPERTIES

• Antion Traces: chloride (Cl-): ≤10 mg/kg
• Antion Traces: sulfate (SO42-): ≤50 mg/kg
• Cation Traces: Ca: ≤50 mg/kg
• Cation Traces: Fe: ≤20 mg/kg
• Cation Traces: Na: ≤200 mg/kg
• Cation Traces: Pb: ≤50 mg/kg
• Grade: puriss. p.a.
• Impurities: ≤0.005% in water insoluble matters
• Linear Formula: K2CrO4
• Purity: ≥99.5%
• Melting Point: 971 °C(lit.)
• pH: 8.6-9.8 (20 °C, 5%)
• Vapor Density: 6.7 (vs air)
• GHS Signal Word: Danger
• GHS Hazard statements: H315-H317-H319-H335-H340-H350i-H410
• European Hazard Symbols: Toxic (T)
• European Hazard Symbols: Nature polluting (N)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
• GHS Precautionary statements: P201-P261-P273-P280-P305 + P351 + P338-P308 + P313
• RID/ADR: UN 3288 6.1/PG 3
• Risk Statements: 49-46-36/37/38-43-50/53
• RTECS: GB2940000
• Safety Statements: 53-45-60-61
• Hazard Class: 6.1
• UN Number: 3288
• Packing Group: 3
• German water hazard class: 3