Gallium sulfide (Ga2S3)
gallium(iii) sulfide
CAS: 12024-22-5
Molecular Formula: Ga2S3
Gallium sulfide (Ga2S3) - Names and Identifiers
| Name | gallium(iii) sulfide |
| Synonyms | GALLIUM SULFIDE Gallium trisulfide GALLIUM(III) SULFIDE gallium(iii) sulfide Digallium trisulphide GALLIUM SESQUISULFIDE galliumsulfide(ga2s3) digallium trisulphide Gallium sulfide (Ga2S3) thioxo-thioxogallanylsulfanyl-gallane |
| CAS | 12024-22-5 |
| EINECS | 234-692-2 |
| InChI | InChI=1/2Ga.3S/rGa2S3/c3-1-5-2-4 |
Gallium sulfide (Ga2S3) - Physico-chemical Properties
| Molecular Formula | Ga2S3 |
| Molar Mass | 235.64 |
| Density | 3.65g/mLat 25°C(lit.) |
| Melting Point | 1255°C |
| Water Solubility | It dissolves in water slowly, which is easy to dissolve in concentrated alkaline to get gallate salts. It is also dissolves in HCL and nitric acid. |
| Appearance | Powder |
| Specific Gravity | 3.77 |
| Storage Condition | −20℃ |
| Sensitive | Moisture Sensitive |
Gallium sulfide (Ga2S3) - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | 34 - Causes burns |
| Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3260 8/PG 2 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Class | 4.3 |
| Packing Group | III |
Gallium sulfide (Ga2S3) - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| production method | put a Shi Ying disc containing 5.57g gallium metal (0.06mol) into a Shi Ying combustion tube, and connect a hydrogen sulfide intake pipe equipped with a paraffin flowmeter. The intake pipe must have a length that allows hydrogen sulfide to pass directly onto gallium. The combustion tube is placed in the furnace, and the furnace temperature is slowly raised to 950 ℃ under the condition of introducing hydrogen sulfide, and the reaction continues for 2 hours. Then hydrogen sulfide is introduced to cool the furnace temperature to room temperature. At this time, the product is yellow due to the entrainment of gallium sulfide. The mixture can be ground into fine powder with an agate mortar and sent back to the combustion tube. According to the above operation, it will continue to react with hydrogen sulfide for 3 hours. The product is cooled while continuing to pass in hydrogen sulfide, and then taken out after reaching room temperature. Pure gallium trisulfide is white. If it is still yellow, the above operation should be repeated. The above operations must be carried out in the fume hood. The amount is almost quantitative. |
Last Update：2024-04-10 22:29:15
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