Potassium sulphide
Buy Potassium sulphide (CAS 1312-73-8) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Purity 95%. Packs from 500 g.
About Potassium sulphide
Potassium sulphide sits in our alkali Metal Compounds (Li, Na, K, Rb, Cs) section and ships worldwide from stock or short lead time. Identity at a glance (95%): CAS 1312-73-8, formula K2S and molar mass 110.26 g/mol. Expect yellow-brown to green powder or chunks.
Where it is used
- Materials research
- Chemical synthesis
Safe handling
Reported physical data: melting point 840 °C and density 1.74 g/cm3. It carries the GHS signal word Danger (H314 and H400), so wear gloves and eye protection and work with good ventilation.
Standard pack sizes are 500 g, 5 kg and 25 kg, and custom quantities are quoted on request. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Specifications and identifiers
| Product name | Potassium sulphide |
|---|---|
| Catalogue number | ZX-013128 |
| CAS number | 1312-73-8 |
| IUPAC name | dipotassium;sulfide |
| Molecular formula | K2S |
| Molar mass | 110.26 g/mol |
| Exact mass | 109.8995 |
| Purity / assay | 95% |
| Physical form | Powder |
| Appearance | Yellow-brown to green powder or chunks |
| Melting point | 840 °C |
| Density | 1.74 g/cm3 |
| H-bond donors / acceptors | 0 / 1 |
| Topological polar surface area | 1 Ų |
| HS code | 28309020 |
| InChIKey | DPLVEEXVKBWGHE-UHFFFAOYSA-N |
| SMILES | [S-2].[K+].[K+] |
| PubChem CID | 162263 |
| Synonyms | Dipotassium monosulfide, Dipotassium sulfide, Potassium monosulfide, Potassium sulfide (2:1), Kali Sulf. Bath Essence, Dipotassium monosulfide (K2S), Dipotassium tetrasulfide, Potassium sulfide (K2(S4)), Dipotassium trisulphide, Potassium sulfide (K2S), dipotassium sulphide |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H314Causes severe skin burns and eye damage
- H400Very toxic to aquatic life
Precautionary statements P260, P264, P273, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P391, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 500 g | Quoted on request | |
| 5 kg | Quoted on request | |
| 25 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Potassium sulphide
Which CAS number identifies Potassium sulphide?
What are the formula and molar mass of Potassium sulphide?
What grade and pack sizes are available for Potassium sulphide?
Which documents come with Potassium sulphide?
Can Zemixal ship Potassium sulphide to my country?
Related products
More in Alkali Metal Compounds (Li, Na, K, Rb, Cs)
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.