12257

Potassium dichromate

technical, ≥98%

• Synonym(s): Potassium bichromate
• Linear Formula: K₂Cr₂O₇
• CAS Number: 7778-50-9
• Molecular Weight: 294.18
• EC Number: 231-906-6
• MDL number: MFCD00011367
• UNSPSC Code: 12352300

Properties

• grade: technical
• assay: ≥98%
• reaction suitability: reagent type: oxidant
• mp: 398 °C (lit.)
• anion traces: chloride (Cl^-): ≤200 mg/kg; sulfate (SO₄^2-): ≤500 mg/kg
• SMILES string: [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
• InChI: 1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
• InChI key: KMUONIBRACKNSN-UHFFFAOYSA-N

Description

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Safety Information

• pictograms: GHS03,GHS06,GHS08,GHS05,GHS09
• signalword: Danger
• hcodes: H272,H301,H312,H314,H317,H330,H334,H335,H340,H350,H360FD,H372,H410
• pcodes: P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3
• target_organs: Cardio-vascular system, Respiratory system
• Storage Class: 5.1B - Oxidizing hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges