A6713512
Potassium pyrosulfate , AR,98% , 7790-62-7
Synonym(s):
Potassium disulfate (Potassium pyrosulfate);Potassium pyrosulfate
CAS NO.：7790-62-7
Empirical Formula: K2O7S2
Molecular Weight: 254.32
MDL number: MFCD00011385
EINECS: 232-216-8
| Pack Size | Price | Stock | Quantity |
| 500G | RMB41.60 | In Stock |
|
| 12×500g | RMB855.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 325 °C |
| bulk density | 830kg/m3 |
| Density | 2.28 g/mL at 25 °C (lit.) |
| storage temp. | no restrictions. |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 2.28 |
| color | White |
| Odor | Odorless |
| PH | 0.8 (50g/l, H2O, 20℃) |
| PH Range | 1 - 2 at 25.5 g/l at 25 °C |
| Water Solubility | MAY DECOMPOSE |
| Sensitive | Hygroscopic |
| Merck | 14,7664 |
| Stability: | Stable. Incompatible with strong acids, strong bases. |
| InChI | 1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2 |
| InChIKey | KAQHZJVQFBJKCK-UHFFFAOYSA-L |
| SMILES | [K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O |
| CAS DataBase Reference | 7790-62-7(CAS DataBase Reference) |
| EPA Substance Registry System | Disulfuric acid, dipotassium salt (7790-62-7) |
Description and Uses
Potassium disulfite supported on silica may be used for the synthesis of ethyl pyruvate.
Safety
| Symbol(GHS) |   GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H314-H330 |
| Precautionary statements | P260-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3260 8/PG 2 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 2833 29 80 |
| HazardClass | 8 |
| PackingGroup | II |
| Storage Class | 6.1B - Non-combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| Hazard Classifications | Acute Tox. 3 Inhalation Eye Dam. 1 Skin Corr. 1A |
| REACH Registrations | Active |
