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  6. Pyridinium dichromate, 98%

Pyridinium dichromate, 98%

Catalog No. p-7046587
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Catalog No. Quantity
AAL1513214 25 g
AAL1513222 100 g
AAL1513236 500 g
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Catalog No. AAL1513214 Supplier Thermo Scientific Chemicals Supplier No. L1513214
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Description

Alfa Aesar Pyridinium dichromate, 98%, Quantity: 100g, Melting Point: ∼145 deg.C to 147 deg.C, Molecular Weight: 376.205, Percent Purity: 98%, CAS: 20039-37-6, DOT Information: Transport Hazard Class: 5.1; Packing Group: II; Proper Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S. | CAS: 20039-37-6 | C10H12Cr2N2O7 | 376.205 g/mol

Pyridinium dichromate acts as a strong oxidizing agent used in the conversion of primary alcohols and secondary alcohols to aldehydes and ketones respectively. It plays an important role in the oxidation of unsaturated tertiary alcohols, silyl ethers, the carbon-boron bond, and oximes. Further, it is used in the conversion of acetals to esters and didehydroketones to enones in the presence of tert-butyl hydroperoxide.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Pyridinium dichromate acts as a strong oxidizing agent used in the conversion of primary alcohols and secondary alcohols to aldehydes and ketones respectively. It plays an important role in the oxidation of unsaturated tertiary alcohols, silyl ethers, the carbon-boron bond, and oximes. Further, it is used in the conversion of acetals to esters and didehydroketones to enones in the presence of tert-butyl hydroperoxide.

Solubility
Soluble in water, dimethyl formamide, dimethyl sulfoxide and acetonitrile. Slightly soluble in dichloromethane, chloroform and acetone. Insoluble in hexane, ether and ethyl acetate.

Notes
Hygroscopic. Incompatible withorganic materials and powdered metals.

Chemical Identifiers

CAS 20039-37-6
Molecular Formula C10H12Cr2N2O7
Molecular Weight (g/mol) 376.205
MDL Number MFCD00013105
InChI Key LMYWWPCAXXPJFF-UHFFFAOYSA-P
Synonym pyridinium dichromate, cornforth reagent, pyridinium dichromate pdc, oxido-oxido dioxo chromio oxy-dioxochromium; pyridin-1-ium, pyridiniumdichromate, pyridinium-dichromate, dipyridinium dichromate, bis pyridium chromate, pyridiniumdichromate pdc, acmc-209f5g
PubChem CID 2724130
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-]

Specifications

Melting Point ∼145°C to 147°C
Quantity 25 g
UN Number UN3087
Sensitivity Hygroscopic
Solubility Information Soluble in water,dimethyl formamide,dimethyl sulfoxide and acetonitrile. Slightly soluble in dichloromethane,chloroform and acetone. Insoluble in hexane,ether and ethyl acetate.
Formula Weight 376.21
Percent Purity 98%
Chemical Name or Material Pyridinium dichromate

Safety and Handling

Hazard Category H228-H272-H314-H335-H350i-H373
Hazard Statement GHS H Statement
H351-H317
Suspected of causing cancer.
May cause an allergic skin reaction.
Precautionary Statement P201-P202-P210-P220-P221-P240-P241-P260-P264b-P271-P281-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P370+P378q-P501c
DOTInformation Transport Hazard Class: 5.1; Packing Group: II; Proper Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
EINECSNumber 243-478-8
TSCA Yes
Recommended Storage Ambient temperatures; Store under Nitrogen

RUO – Research Use Only