Cobalt(II) sulfide
Cobalt(II) sulfide
CAS: 1317-42-6
Molecular Formula: CoS
Cobalt(II) sulfide - Names and Identifiers
| Name | Cobalt(II) sulfide |
| Synonyms | sycoporite COBALT SULFIDE Cobaltous sulfide COBALTOUS SULFIDE cobaltmonosulfide cobalt(2+)sulfide Cobalt(II) sulfide cobalt(2+) sulfide cobaltsulfide(cos) cobaltsulfide(amorphous) |
| CAS | 1317-42-6 |
| EINECS | 215-273-3 |
| InChI | InChI=1/Co.S/q+2;-2 |
Cobalt(II) sulfide - Physico-chemical Properties
| Molecular Formula | CoS |
| Molar Mass | 91 |
| Density | 5,45 g/cm3 |
| Melting Point | >1116°C |
| Water Solubility | Insoluble in water. |
| Vapor Presure | 12600mmHg at 25°C |
| Appearance | Powder |
| Specific Gravity | 5.45 |
| Color | Red |
| Exposure Limit | ACGIH: TWA 0.02 mg/m3 |
| Storage Condition | Room Temprature |
| Sensitive | moisture sensitive |
| Physical and Chemical Properties | |
| Use | For the extraction of cobalt raw materials |
Cobalt(II) sulfide - Risk and Safety
| Risk Codes | R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24 - Avoid contact with skin. S37 - Wear suitable gloves. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | 3077 |
| RTECS | GG3325000 |
| TSCA | Yes |
| Hazard Class | 9 |
Cobalt(II) sulfide - Upstream Downstream Industry
| Downstream Products | Cobalt Formate |
Cobalt(II) sulfide - Reference
| Reference Show more | 1. [IF=0] Xuejing Lin et al."Volatile oil from Saussurea lappa exerts antitumor efficacy by inhibiting epithelial growth factor receptor tyrosine kinase-mediated signaling pathway in hepatocellular carcinoma."Oncotarget. 2016 Nov 29; 7(48): 79761–79773 |
Cobalt(II) sulfide - Reference Information
| overview | cobalt sulfide chemical formula CoS. Molecular weight 91.00. It exists in two forms, α-type black amorphous powder, which becomes Co(OH)S in air and is dissolved in HCl. β-type: gray powder or silver red octahedral crystal, melting point higher than 1116 ℃, relative density 5.45. Slightly soluble in acid, insoluble in water. Preparation method: Hydrogen sulfide is introduced into the cobalt nitrate aqueous solution under isolated air, and the generated precipitate is slowly heated for 90 hours to 106~500 ℃ for drying to obtain β-type. The metal cobalt powder and sulfur are sealed into a quartz tube under vacuum, and heated at 700 ℃ for 72 hours to obtain α-type. |
| use | cobalt sulfide is slightly soluble in acid and insoluble in water. It can be used as a catalyst or used to prepare chemical raw materials, such as preparing a sulfur-doped cobalt phosphide/carbon nanofiber composite. used to extract cobalt raw materials |
| category | toxic substances |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: > 5000 mg/kg |
| flammability hazard characteristics | non-combustible; toxic cobalt compounds and sulfur oxide smoke from the fire site |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | carbon dioxide, sand, water |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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