Potash , Vulcanization, minimum containing 11.8 , 39365-88-3
Synonym(s):
Dipotassium thiosulfate mixture with potassium sulfide;Liver of sulfur;Potash, Sulfurated;Potassium Polysulfide, Liver of Sulfur;Sulfurated potash
| Pack Size | Price | Stock | Quantity |
| 100g | RMB322.40 | In Stock |
|
| 500g | RMB1567.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 200-250°C |
| Density | 1.65 g/cm3 (20℃) |
| vapor pressure | 0.013Pa at 135℃ |
| storage temp. | no restrictions. |
| solubility | 500g/l |
| form | Chunks |
| color | Green |
| PH | 13 (10g/l, H2O, 20℃) |
| Water Solubility | Soluble in water |
| Sensitive | Air Sensitive & Hygroscopic |
| Stability: | Stable, but flammable and hygroscopic. Dust may form an explosive mixture with air. Incompatible with strong acids, alcohols, strong oxidizing agents, strong reducing agents, combustible materials, most common metals, halogenated hydrocarbons. |
| InChI | InChI=1S/4K.H2O3S2.S/c;;;;1-5(2,3)4;/h;;;;(H2,1,2,3,4);/q;;2*+1;;/p-2 |
| InChIKey | PFSBHPPVZHPSCB-UHFFFAOYSA-L |
| SMILES | S(=O)([O-])([O-])=S.S([K])[K].[K+].[K+] |
| Surface tension | 73.02mN/m at 1g/L and 18.1℃ |
Description and Uses
Potassium sulfide, is a binary salt. It is a red or yellow-red crystalline mass or fused solid. It is deliquescent in air, which means it absorbs water from the air, and it is also soluble in water. Potassium sulfide is a dangerous fire risk and may ignite spontaneously. It is explosive in the form of dust and powder. It decomposes at 1562°F (850°C) and melts at 1674°F (912°C). The specific gravity is 1.74, which is heavier than air. The four-digit UN identification number is 1382. The NFPA 704 designation is health 3, flammability 1, and reactivity 0. Potassium sulfide is used primarily in analytical chemistry and medicine.
Potash is used in black/brown patina (copper, brass, bronze). Its use include decorative color effects on copper, brass, bronze and nickel. Sulfurated potash has been used in the treatment of acne and other skin disorders usually in the form of a lotion with zinc sulfate.
Safety
| Symbol(GHS) |   GHS05,GHS09 |
| Signal word | Danger |
| Hazard statements | H314-H400 |
| Precautionary statements | P260-P273-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | C,N |
| Risk Statements | 31-34-50 |
| Safety Statements | 26-36/37/39-45-61 |
| RIDADR | UN3180 |
| WGK Germany | 3 |
| HS Code | 2830 90 85 |
| HazardClass | 4.1 |
| PackingGroup | II |
