Potassium dichromate, 99%

Name: Potassium dichromate, 99%
Brand: Vaqora Chemicals
SKU: VQ-014017

About Potassium dichromate, 99%

Vaqora Chemicals supplies Potassium dichromate in Extra Pure grade, an alkali metal compound registered under CAS number 7778-50-9, specified at 99% purity. With the molecular formula Cr2K2O7, it has a molar mass of 294.18 g/mol. Systematically, it is named dipotassium. Oxido-(oxido(dioxo)chromio)oxy-dioxochromium. Alternative names: Potassium bichromate and Iopezite.

In its supplied form it is an orange crystalline powder. Literature values give a melting point of 398 °C and a density of 2.68 g/cm3 at 20 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 11 hazard statements. Review the Safety Data Sheet before use.

Typical applications include oxidation reactions and materials research. It is used across academic and industrial research.

We offer Potassium dichromate in 500 g, 5 kg and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Oxidation reactions
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Potassium dichromate, 99%
Catalogue No.	VQ-014017
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	Extra Pure
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	Powder
Appearance	Orange crystalline powder
Melting point	398 °C
Density	2.68 g/cm3 at 20 °C
H-bond donors / acceptors	0 / 7
TPSA	124 Å²
UN number	UN 3082
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

AR

Potassium dichromate, GR 99%+

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

VQ-014018

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, 99%?

The CAS Registry Number of Potassium dichromate, 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, 99%?

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

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

We supply Potassium dichromate, 99% in Extra Pure (99%) grade, in 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

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

Yes. Every lot of Potassium dichromate, 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, 99% be shipped internationally?

Yes. Potassium dichromate, 99% is classified as hazardous (UN 3082), 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.