Potassium dichromate, GR 99%+

Name: Potassium dichromate, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-014018

About Potassium dichromate, GR 99%+

Potassium dichromate is an alkali metal compound (AR grade) carrying the CAS registry number 7778-50-9, specified at ≥99% purity. Formula Cr2K2O7, molecular weight 294.18 g/mol. The IUPAC name is dipotassium. Oxido-(oxido(dioxo)chromio)oxy-dioxochromium. It is also known as Potassium bichromate or Iopezite.

In its supplied form it is orange powder, crystals. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include oxidation reactions and materials research. Typical end-use sectors are academic and industrial research.

Standard pack sizes are 500 g, 5 kg and 4 x 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Oxidation reactions
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Potassium dichromate, GR 99%+
Catalogue No.	VQ-014018
CAS Number	7778-50-9
IUPAC name	dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
Molecular formula	Cr₂K₂O₇
Molecular weight	294.18 g/mol
Exact mass	293.7728
Grade	AR
Purity / assay	≥99%
HSN code	28415090
InChIKey	KMUONIBRACKNSN-UHFFFAOYSA-N
SMILES	[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
PubChem CID	24502

Physical properties
Physical form	Crystalline
Appearance	Orange powder, crystals
H-bond donors / acceptors	0 / 7
TPSA	124 Å²
UN number	UN 3086
Synonyms	Potassium bichromate, Iopezite, Bichromate of potash, Potassium dichromate(VI), Dipotassium bichromate, Dipotassium dichromate, Dichromic acid dipotassium salt, Dipotassium dichromium heptaoxide, SRM 935a, Potassium chromate (K2Cr2O7), Kali bichromicum, Potassium dichromate (K2Cr2O7)

Safety & hazard information (GHS)

Oxidiser

Corrosive

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H272May intensify fire, oxidizer
H301Toxic if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H330Fatal if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H340May cause genetic defects
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P210, P220, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P318, P319, P320

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7778-50-9

USP

Potassium dichromate 0.1 N volumetric solution as per, USP

CAS: 7778-50-9
Formula: Cr₂K₂O₇
MW: 294.18 g/mol

VQ-047224

Potassium dichromate, ≥99.8%

CAS: 7778-50-9
Formula: Cr₂K₂O₇
MW: 294.18 g/mol

VQ-014019

Extra Pure

Potassium dichromate, 99%

CAS: 7778-50-9
Formula: Cr₂K₂O₇
MW: 294.18 g/mol

VQ-014017

Potassium dichromate, solution 0.25 N

CAS: 7778-50-9
Formula: Cr₂K₂O₇
MW: 294.18 g/mol

VQ-000110

Frequently asked questions

What is the CAS number of Potassium dichromate, GR 99%+?

The CAS Registry Number of Potassium dichromate, GR 99%+ is 7778-50-9. It is also known as Potassium bichromate, Iopezite, Bichromate of potash.

What is the molecular formula and molecular weight of Potassium dichromate, GR 99%+?

Potassium dichromate, GR 99%+ has the molecular formula Cr2K2O7 and a molecular weight of 294.18 g/mol.

Which grade and pack sizes of Potassium dichromate, GR 99%+ can I order?

We supply Potassium dichromate, GR 99%+ in AR (≥99%) grade, in 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium dichromate, GR 99%+?

Yes. Every lot of Potassium dichromate, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Potassium dichromate, GR 99%+ be shipped internationally?

Yes. Potassium dichromate, GR 99%+ is classified as hazardous (UN 3086), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.