Name | Indium (III) sulfide |
Synonyms | Indium sulfide INDIUM SULFIDE Einecs 234-742-3 Indium (III) sulfide Diindium trisulphide INDIUM SESQUISULFIDE Indium sulfide (In2S3) thioxo-thioxoindiganylsulfanyl-indigane |
CAS | 12030-24-9 37231-03-1 |
EINECS | 234-742-3 |
InChI | InChI=1/2In.3S/rIn2S3/c3-1-5-2-4 |
Molecular Formula | In2S3 |
Molar Mass | 325.83 |
Density | 4,45 g/cm3 |
Melting Point | 1050°C |
Water Solubility | Insoluble in water. |
Appearance | Orange to red orange powder |
Specific Gravity | 4.45 |
Color | Red-orange |
Exposure Limit | ACGIH: TWA 0.1 mg/m3NIOSH: TWA 0.1 mg/m3 |
Storage Condition | Room Temprature |
Sensitive | Moisture Sensitive |
MDL | MFCD00011061 |
Hazard Symbols | Xn - Harmful![]() |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
UN IDs | UN2813 |
WGK Germany | 3 |
TSCA | Yes |
Hazard Class | 4.3 |
Packing Group | III |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
solubility in water (g/100ml) | dissolved grams per 100ml of water: 2.867 × 10-14/20 ℃ |
production method | put a small corundum disc containing indium trioxide into a quartz tube, and under the condition of introducing hydrogen sulfide purified by dry ice liquefaction, heat the reaction tube to 500 ℃ for 5 hours, then raise the temperature to 700 ℃ for 8 hours. The product is the red indium trisulfide, which becomes a shiny black product after melting. This product is a high-temperature modified product of β-In2S3. The low-temperature variant product α-In2S3 can be prepared by the following method: that is, to the trivalent indium salt solution dissolved in the acetic acid salt buffer aqueous solution, hydrogen sulfide is introduced, and the generated precipitate is deposited at a temperature below 100°C., Vacuum drying on P2O5 is obtained. But it is difficult to make pure products. |