Name | gallium(ii) chloride |
Synonyms | gallium(ii) chloride GALLIUM (II) CHLORIDE Gallium(II)chlorideanhydrous gallium gallium tetrachloride Gallium(II)chloride,anhydrous gallium(ii) chloride, ultra dry gallium(+2) monohydride cation tetrachloride |
CAS | 13498-12-9 |
EINECS | 625-452-1 |
InChI | InChI=1/4ClH.2Ga.2H/h4*1H;;;;/q;;;;2*+2;;/p-4/r4ClH.2GaH/h6*1H/q;;;;2*+2/p-4 |
Molecular Formula | Cl4Ga2 |
Molar Mass | 281.26 |
Melting Point | 164°C |
Boling Point | 535°C |
Flash Point | 535°C |
Appearance | crystal |
Color | white |
Sensitive | Air & Moisture Sensitive |
Hazard Symbols | C - Corrosive |
Risk Codes | 34 - Causes burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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 |
Hazard Class | 8 |
Packing Group | II |
Nature:
1. It is a colorless, volatile liquid with a special irritating odor.
2. It can be quickly oxidized by moisture and oxygen in the air, forming gallium chloride, gallic acid, and chlorine gas.
3. Strict control of environmental humidity and oxygen content is required during use.
Usage:
1. It has a wide range of applications in the semiconductor industry. It can be used as a precursor for metal organic chemical vapor deposition (MOCVD) to prepare semiconductor thin films.
2. It can also be used to prepare other compounds, such as metal gallium, various organic gallium compounds, and conductive thin film materials.
Method:
One of the main methods for preparing ultra dry gallium dichloride is through the reaction of gallium chloride and hydrogen chloride. This process needs to be carried out under the protection of inert gases (such as nitrogen or argon) and under low temperature conditions to avoid contamination by moisture and oxygen.
Security information:
1. It should be sealed and stored, and appropriate protective equipment should be worn during use, such as chemical goggles, gloves, and protective clothing.
2. Avoid contact with skin and eyes, and maintain good ventilation in the operating area.
3. If there is an accidental leak, it should be promptly removed and appropriate waste disposal should be carried out.