
20039-37-6
| Name | Pyridinium dichromate |
| CAS | 20039-37-6 |
| EINECS(EC#) | 243-478-8 |
| Molecular Formula | C10H12Cr2N2O7 |
| MDL Number | MFCD00013105 |
| Molecular Weight | 376.2 |
| MOL File | 20039-37-6.mol |
Chemical Properties
| Appearance | Orange solid |
| Melting point | 152-153 °C(lit.) |
| density | 1.71[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Store at RT. |
| 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℃ |
| Uses | |
| CAS DataBase Reference | 20039-37-6(CAS DataBase Reference) |
| EPA Substance Registry System | 20039-37-6(EPA Substance) |
Safety Data
| 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 |
| Hazard Codes | O,T,N,Xn |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 1479 5.1/PG 2 |
| WGK Germany | 2 |
| F | 3 |
| TSCA | Yes |
| REACH Registrations | Active |
| 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 |





