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Potassium dichromate

Catalog No. 60200 Name Sigma Aldrich
CAS Number 7778-50-9 Website http://www.sigmaaldrich.com
M. F. Cr2K2O7 Telephone 1-800-521-8956
M. W. 294.1846 Fax
Purity ≥99.0% (RT) Email
Storage Chembase ID: 104538

SYNONYMS

Title
重铬酸钾
IUPAC name
dipotassium [(oxidodioxochromio)oxy]chromiumoylolate
IUPAC Traditional name
dipotassium chromate
Synonyms
Potassium bichromate
红矾钾

DATABASE IDS

CAS Number 7778-50-9
MDL Number MFCD00011367
EC Number 231-906-6

PROPERTIES

Antion Traces chloride (Cl-): ≤50 mg/kg
Antion Traces sulfate (SO42-): ≤200 mg/kg
Cation Traces Ca: ≤50 mg/kg
Cation Traces Cd: ≤50 mg/kg
Cation Traces Co: ≤50 mg/kg
Cation Traces Cu: ≤50 mg/kg
Cation Traces Fe: ≤50 mg/kg
Cation Traces Na: ≤500 mg/kg
Cation Traces Ni: ≤50 mg/kg
Cation Traces Pb: ≤50 mg/kg
Cation Traces Zn: ≤50 mg/kg
Grade purum p.a.
Linear Formula K2Cr2O7
Purity ≥99.0% (RT)
Melting Point 398 °C(lit.)
GHS Pictograms GHS03
GHS Pictograms GHS05
GHS Pictograms GHS06
GHS Pictograms GHS08
GHS Pictograms GHS09
GHS Signal Word Danger
GHS Hazard statements H272-H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410
European Hazard Symbols Oxidising Oxidising (O)
European Hazard Symbols Highly toxic Highly toxic (T+)
European Hazard Symbols Nature polluting Nature polluting (N)
MSDS Link Download
Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
GHS Precautionary statements P201-P220-P260-P273-P280-P284
RID/ADR UN 3086 6.1/PG 1
Risk Statements 45-46-60-61-8-21-25-26-34-42/43-48/23-50/53
RTECS HX7680000
Safety Statements 53-45-60-61
Hazard Class 6.1
UN Number 3086
Packing Group 1
German water hazard class 3

DETAILS

REFERENCES