Potassium Sulfate CAS#7778-80-5
Potassium sulfate (K₂SO₄) is a chemical compound widely used in agricultural applications. Its primary use is as a fertilizer, providing essential potassium and sulfur nutrients to crops, thereby improving crop quality and increasing yields in soils deficient in these important elements.
In addition to agricultural applications, crude potassium sulfate can also be used in glass manufacturing. It is further applied in other industrial fields, where it serves as a flash reducer in artillery propellant compositions and as an alternative blasting medium similar to soda in soda blasting processes.
Potassium sulfate Chemical Properties
| Melting point | 1067°C |
| Boiling point | 1689°C |
| density | 2.66 |
| Fp | 1689°C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| form | Very Fine Crystals or Powder |
| color | White |
| Specific Gravity | 2.662 |
| Odor | Odorless |
| PH Range | ~7 |
| PH | 5.5-7.5 (25℃, 0.5M in H2O) |
| Water Solubility | 110 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.01 |
| λ: 280 nm Amax: 0.01 | |
| Merck | 147674 |
| crystal system | Nogata |
| Space group | Pnma |
| Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.74560.57761.008909090 |
| Dielectric constant | 5.9（0.0℃） |
| Stability: | Stable. |
| InChIKey | OTYBMLCTZGSZBG-UHFFFAOYSA-L |
| CAS DataBase Reference | 7778-80-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Potassium sulfate(7778-80-5) |
| EPA Substance Registry System | Potassium sulfate (7778-80-5) |
| Safety Statements | 22-24/25 |
| WGK Germany | 1 |
| RTECS | TT5900000 |
| TSCA | Yes |
| HS Code | 31043000 |
| Hazardous Substances Data | 7778-80-5(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 6600 mg/kg |
