Pyridinium Dichromate


CAS #:

Linear Formula:

C10H10N2 • H2Cr2O7

MDL Number:


EC No.:



98% Pyridinium Dichromate
Pricing > SDS > Data Sheet >

Pyridinium Dichromate Properties (Theoretical)

Compound Formula C10H12Cr2N2O7
Molecular Weight 376.205
Appearance Orange to brown powder, crystals, or chunks
Melting Point 147-153 °C
Boiling Point N/A
Density N/A
Solubility in H2O Soluble
Exact Mass 375.945 g/mol
Monoisotopic Mass 375.945 g/mol

Pyridinium Dichromate Health & Safety Information

Signal Word Danger
Hazard Statements H228-H272-H314-H350i-H410
Hazard Codes F, O, C, Xn, N
Precautionary Statements P201-P210-P220-P273-P280-P305 + P351 + P338
Risk Codes R8 R43 R49 R50
Safety Statements (S1/2) S4 S17 S20 S24 S37 S45 S53 S57
RTECS Number N/A
Transport Information UN1479 5.1/ PG II
WGK Germany 2
GHS Pictograms

About Pyridinium Dichromate

Pyridinium Dichromate is generally immediately available in most volumes. American Elements manufactures materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.

Pyridinium Dichromate Synonyms

dipyridinium dichromate, bis(pyridium) chromate, PDC, Cornforth Reagent

Chemical Identifiers

Linear Formula C10H10N2 • H2Cr2O7
MDL Number MFCD00013105
EC No. 243-478-8
Pubchem CID 2724130 / 159879
IUPAC Name oxido-(oxido(dioxo)chromio)oxy-dioxochromium; pyridin-1-ium
SMILES C1=CC=[NH+]C=C1.C1=CC=[NH+]C=C1.[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-]
InchI Identifier InChI=1S/2C5H5N.2Cr.7O/c2*1-2-4-6-5-3-1;;;;;;;;;/h2*1-5H;;;;;;;;;/q;;;;;;;;;2*-1/p+2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. Chromium Bohr ModelThe number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electron configuration is [Ar] 3d5 4s1. Louis Nicolas Vauquelin first discovered chromium in 1797 and first isolated it the following year. The chromium atom has a radius of 128 pm and a Van der Waals radius of 189 pm. In its elemental form, chromium has a lustrous steel-gray appearance. Elemental ChromiumChromium is the hardest metallic element in the periodic table and the only element that exhibits antiferromagnetic ordering at room temperature, above which it transforms into a paramagnetic solid. The most common source of chromium is chromite ore (FeCr2O4). Due to its various colorful compounds, Chromium was named after the Greek word 'chroma.' meaning color.


See more Nitrogen products. Nitrogen is a Block P, Group 15, Period 2 element. Its electron configuration is [He]2s22p3. Nitrogen is an odorless, tasteless, colorless and mostly inert gas. It is the seventh most abundant element in the universe and it constitutes 78.09% (by volume) of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.


April 14, 2024
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