Potassium Dichromate (CAS 7778-50-9) Sigma-Aldrich

Potassium Dichromate molecular structure — Molecular structure

The Sigma-Aldrich catalog lists 10 grades and pack sizes of Potassium Dichromate (CAS 7778-50-9). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS	7778-50-9
Molecular formula	Cr2K2O7
Molecular weight	294.18 g/mol
IUPAC name	dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
Synonyms	Potassium bichromate · Iopezite · Kaliumdichromat · Bichromate of potash · Potassium dichromate(VI) · Dipotassium bichromate

Safety & Hazards (GHS) Danger

Oxidizing

Corrosive

Acute toxic

Health hazard

Environmental hazard

H272 May intensify fire; oxidizer
H301 Toxic if swallowed
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H330 Fatal if inhaled
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
H340 May cause genetic defects
H350 May cause cancer
H360FD May damage fertility; May damage the unborn child
H372 Causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand	Product / grade	Code
Sigma	POTASSIUM DICHROMATE BIOXTRA	P2588-250G	Request Quote
Sigma	POTASSIUM DICHROMATE, (OXIDIMETRIC STAND	NIST136F	Request Quote
Sigma	POTASSIUM DICHROMATE, 99+%, A.C.S. REAG	207802-100G 207802-500G	Request Quote
Sigma	POTASSIUM DICHROMATE, 99.98% TRACE META	483044-10G 483044-50G	Request Quote
Sigma	POTASSIUM DICHROMATE, CERTIFIED REFERENC	42019-50G-F	Request Quote
Sigma	POTASSIUM DICHROMATE, REAGENTPLUS TM	P5271-25G P5271-2KG P5271-500G	Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.