Gallium(III)
Gallium(III) chloride
CAS: 13450-90-3
Molecular Formula: Cl3Ga
Gallium(III) - Names and Identifiers
| Name | Gallium(III) chloride |
| Synonyms | gallium(iii) Trichlorogallium Gallium chloride galliumchloride[qr] gallium trichloride Gallium(III) chloride galliumchloride(gacl3) Galliumchlorideanhydrouswhitefusedlump |
| CAS | 13450-90-3 |
| EINECS | 236-610-0 |
| InChI | InChI=1/3ClH.Ga/h3*1H;/q;;;+3/p-3 |
| InChIKey | UPWPDUACHOATKO-UHFFFAOYSA-K |
Gallium(III) - Physico-chemical Properties
| Molecular Formula | Cl3Ga |
| Molar Mass | 176.08 |
| Density | 2.47g/mLat 25°C(lit.) |
| Melting Point | 78°C(lit.) |
| Boling Point | 35°C |
| Flash Point | −26°F |
| Water Solubility | Very soluble in water. Soluble in benzene, carbon tetrachloride and carbon disulfide |
| Vapor Presure | 1 mm Hg ( 48 °C) |
| Appearance | beads |
| Specific Gravity | 2.47 |
| Color | White |
| Merck | 14,4348 |
| Stability | Stability Stable, but reacts violently with water. |
| Sensitive | Moisture Sensitive |
| Physical and Chemical Properties | Boiling Point: 201.3 ° C Melting Point: 77.9 ° C density: 2.47 gcm-3 Properties: air moisture hydrolysis and smoke. The gas is present as a dimer around 270 °c. Soluble in water, a lot of heat. Trivalent gallium is present in aqueous solution at pH 6 and above as an oxyacid ion, Gao 33- GaO2. Soluble in ether, benzene and other organic solvents, soluble in liquid ammonia to form ammonia complexes. |
| Use | Used as a spectral purity reagent |
Gallium(III) - Risk and Safety
| Risk Codes | R14 - Reacts violently with water R34 - Causes burns R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R12 - Extremely Flammable R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. 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.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. S16 - Keep away from sources of ignition. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. |
| UN IDs | UN 3260 8/PG 2 |
| WGK Germany | 3 |
| RTECS | LW9100000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 28273990 |
| Hazard Class | 8 |
| Packing Group | II |
Gallium(III) - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | use as a spectral purity reagent scientific research reagent, biochemical research |
| production method | 1. Hydrogen chloride gas was dried by passing through a gas cylinder charged with concentrated sulfuric acid and a drying tower for calcium chloride. 1-2g of Gallium was weighed into a small magnetic boat, and the magnetic boat was placed in a hard glass tube with a diameter of 2cm and a length of 50cm. A portion of the tube is enclosed in a small resistance furnace, and the temperature of the furnace is controlled by an externally connected varistor. After the air in the pipe was discharged with hydrogen chloride gas, the temperature of the electric furnace was slowly increased to 200 °c. This temperature was maintained until the complete reaction of all gallium in the magnetic boat. The reaction can also be carried out slowly at 75 °c, but higher temperatures are required in order for Gallium trichloride to sublimate to the cooler portion of the hard glass tube, this also allows the metal to always react with new surfaces. After all the metal gallium had disappeared, the instrument was allowed to cool, the hydrogen chloride generator was removed, and finally the hydrogen chloride gas was purged with nitrogen gas. The Sublimed product was sealed from the instrument and analyzed for chlorine and gallium content by General gravimetry in a yield of 100% based on the amount of gallium used. 2. Gallium trioxide 2.5G and thionyl chloride about 8ml (excess 2-3 times) were placed in a sealed tube and heated at 200 ° C. For several hours. Gallium trioxide was completely chlorinated. As a result of the reaction, the generated sulfur dioxide increases the pressure in the reaction tube, so it is necessary to cool to below -10 °c before turning on. After unsealing, the sulfur dioxide was evaporated at room temperature and the excess thionyl chloride (boiling point 75 ° C.) was further distilled off. The remaining Gallium trichloride can be purified by distillation at 220 °c. |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | subcutaneous-rat LD50: 306 mg/kg; Intraperitoneal-mouse LD50: 93.4 mg/kg |
| flammability hazard characteristics | high thermal decomposition toxic chloride smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide and water mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-05-06 10:36:17
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