A6772112
Pyridinium Dichromate , 98% , 20039-37-6
Synonym(s):
PDC
CAS NO.：20039-37-6
Empirical Formula: C10H12Cr2N2O7
Molecular Weight: 376.2
MDL number: MFCD00013105
EINECS: 243-478-8
| Pack Size | Price | Stock | Quantity |
| 25G | RMB40.80 | In Stock |
|
| 100G | RMB134.40 | In Stock |
|
| 500G | RMB576.80 | In Stock |
|
| 2.5kg | RMB2239.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 152-153 °C(lit.) |
| Density | 1.71[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | soluble in DMSO |
| form | Crystalline Powder |
| color | Orange to brown |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Exposure limits | OSHA: Ceiling 0.1 mg/m3 NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 |
| InChI | 1S/2C5H5N.2Cr.2H2O.5O/c2*1-2-4-6-5-3-1;;;;;;;;;/h2*1-5H;;;2*1H2;;;;;/q;;2*+1;;;;;;;/p-2 |
| InChIKey | BNSOYWDFFBDEFB-UHFFFAOYSA-L |
| SMILES | c1ccncc1.c2ccncc2.O[Cr](=O)(=O)O[Cr](O)(=O)=O |
| LogP | -3.7 at 20℃ |
| CAS DataBase Reference | 20039-37-6(CAS DataBase Reference) |
| EPA Substance Registry System | Chromic acid (H2Cr2O7), compd. with pyridine (1:2) (20039-37-6) |
Description and Uses
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.
Safety
| Symbol(GHS) |       GHS02,GHS03,GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H228-H272-H314-H317-H350i-H410 |
| Precautionary statements | P210-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges |
| Hazard Codes | O,T,N,Xn,F,Xi |
| Risk Statements | 49-8-43-50/53-61-60-46-45-20/21/22-40-36/37/38-34-11 |
| Safety Statements | 53-45-60-61-37-29-24-17-36/37/39-27-22-26 |
| RIDADR | UN 1479 5.1/PG 2 |
| WGK Germany | 2 |
| F | 3 |
| TSCA | TSCA listed |
| HazardClass | 5.1 |
| PackingGroup | II |
| HS Code | 29333100 |
| Storage Class | 4.1A - Other explosive hazardous materials |
| Hazard Classifications | Aquatic Acute 1 Aquatic Chronic 1 Carc. 1B Inhalation Eye Dam. 1 Flam. Sol. 1 Skin Corr. 1B Skin Sens. 1 |
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) or 1.0 kg (2.2 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
