Thermo Scientific™

Pyridinium dichromate, 98%, Thermo Scientific Chemicals

Catalog number: L15132.22
100 g, Each
Thermo Scientific™

Pyridinium dichromate, 98%, Thermo Scientific Chemicals

Catalog number: L15132.22
100 g, Each
Quantity
Catalog number: L15132.22
Price (EUR)
Quantity
-

Chemical Identifiers

CAS
20039-37-6
IUPAC Name
[(hydroxydioxochromio)oxy]chromiumoylol; bis(pyridine)
Molecular Formula
C10H12Cr2N2O7
InChI Key
RCBVKBFIWMOMHF-UHFFFAOYSA-L
SMILES
C1=CC=NC=C1.C1=CC=NC=C1.O[Cr](=O)(=O)O[Cr](O)(=O)=O
Appearance (Color)
Orange to brown
Assay (Iodometric Titration)
≥97.5 to ≤102.5%
Form
Crystals or powder or crystalline powder
Identification (FTIR)
Conforms

Description

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.
RUO – Research Use Only

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    Safety and Handling


    Classification of the substance or mixture
    CLP classification - Regulation(EC) No 1272/2008
    Flammable solids
    Category 1
    Oxidizing solids
    Category 2
    Skin Corrosion/Irritation
    Category 1
    Serious Eye Damage/Eye Irritation
    Category 1
    Carcinogenicity
    Category 1B
    Acute aquatic toxicity
    Category 1
    Chronic aquatic toxicity
    Category 1
    Label Elements
    Signal Word

    Danger

    Hazard Statements

    H314 - Causes severe skin burns and eye damage

    H350i - May cause cancer by inhalation

    H410 - Very toxic to aquatic life with long lasting effects

    Physical Hazards

    H228 - Flammable solid

    H272 - May intensify fire; oxidizer

    Precautionary Statements

    P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking

    P221 - Take any precaution to avoid mixing with combustibles

    P273 - Avoid release to the environment

    P280 - Wear protective gloves/protective clothing/eye protection/face protection

    P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing

    P310 - Immediately call a POISON CENTER or doctor/physician

    Additional EU labelling

    Restricted to professional users