LN9414853
AR,≥99.5% , 7789-12-0
Synonym(s):
Sodium bichromate;Sodium bichromate, Sodium pyrochromate;Sodium dichromate dihydrate
CAS NO.：7789-12-0
Empirical Formula: Cr2H5NaO8
Molecular Weight: 260.01
MDL number: MFCD00149166
EINECS: 616-541-6
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 91 °C(lit.) |
| Boiling point: | 400°C |
| Density | 2,348 g/cm3 |
| bulk density | 1200kg/m3 |
| vapor density | 10 (vs air) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Methanol (Slightly, Sonicated) |
| form | Solid |
| Specific Gravity | 2.348 |
| color | Red-orange |
| PH | 3.5 (20°C, 100g/L) |
| Odor | Odorless |
| PH Range | 3.5-4.0 |
| Water Solubility | 730 g/L (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,8609 |
| Dielectric constant | 2.9（Ambient） |
| CAS DataBase Reference | 7789-12-0(CAS DataBase Reference) |
| EPA Substance Registry System | Disodium dichromate dihydrate (7789-12-0) |
Description and Uses
Sodium Dichromate Dihydrate is used as a catalyst in the synthesis of Endoperoxide II. Strong oxidizing agent in organic synthesis. Used in metal finishing as an aid in corrosion resistance.
Safety
| Symbol(GHS) |      GHS03,GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H272-H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410 |
| Precautionary statements | P210-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | O,T+,N |
| Risk Statements | 45-46-60-61-8-21-25-26-34-42/43-48/23-50/53 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN 3086 6.1/PG 1 |
| WGK Germany | 3 |
| RTECS | HX7750000 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | III |
| HS Code | 28413000 |
| 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) |
