PDC
Pyridinium dichromate
CAS: 20039-37-6
Molecular Formula: C10H12Cr2N2O7
PDC - Names and Identifiers
| Name | Pyridinium dichromate |
| Synonyms | PDC Escat? 11 Escat? 103 pyridin-1-ium PYRIDINE DICHROMATE Pyridinium dichromate oxido-(oxido-dioxo-chromio)oxy-dioxo-chromium ANTI-PDC (CENTER) antibody produced in rabbit hydroxy-(hydroxy-dioxo-chromio)oxy-dioxo-chromium |
| CAS | 20039-37-6 |
| EINECS | 243-478-8 |
| InChI | InChI=1/2C5H5N.2Cr.7O/c2*1-2-4-6-5-3-1;;;;;;;;;/h2*1-5H;;;;;;;;;/q;;;;;;;;;2*-1/p+2/r2C5H5N.Cr2O7/c2*1-2-4-6-5-3-1;3-1(4,5)9-2(6,7)8/h2*1-5H;/q;;-2/p+2 |
| InChIKey | BNSOYWDFFBDEFB-UHFFFAOYSA-L |
PDC - Physico-chemical Properties
| Molecular Formula | C10H12Cr2N2O7 |
| Molar Mass | 376.2 |
| Density | 1.71[at 20℃] |
| Melting Point | 152-153°C(lit.) |
| Water Solubility | soluble |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Crystalline Powder |
| Color | Orange to brown |
| Exposure Limit | OSHA: Ceiling 0.1 mg/m3NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Hygroscopic |
PDC - Risk and Safety
| Risk Codes | R49 - May cause cancer by inhalation R8 - Contact with combustible material may cause fire R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R61 - May cause harm to the unborn child R60 - May impair fertility R46 - May cause heritable genetic damage R45 - May cause cancer R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R40 - Limited evidence of a carcinogenic effect R36/37/38 - Irritating to eyes, respiratory system and skin. R34 - Causes burns R11 - Highly Flammable |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37 - Wear suitable gloves. S29 - Do not empty into drains. S24 - Avoid contact with skin. S17 - Keep away from combustible material. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S27 - Take off immediately all contaminated clothing. S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 1479 5.1/PG 2 |
| WGK Germany | 2 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 29333100 |
| Hazard Class | 5.1 |
| Packing Group | II |
PDC - Reference Information
| LogP | -3.7 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Pyridyl dichromate (Pyridinium dichromate,PDC) is a mild oxidant like PCC. It is orange-yellow crystals at room temperature and is used to oxidize alcohol to aldehyde to a limited extent. It was invented by E.J.Corey. The reagent itself is weakly acidic, so it is often used with buffers such as sodium acetate. It is used as an oxidant for the conversion of primary alcohols into aldehydes and ketones, acetals into esters, and didehydroketones into ketones in the presence of tert-butyl hydrogen peroxide. |
Last Update：2024-04-10 22:29:15
