FIELD: chemistry.
SUBSTANCE: reaction chamber is in form of two containers joined together. Chlorine in an airtight vessel and metallic gallium are put into the first container, and lithium nitride and ammonia in an airtight vessel are put into the second container. The chamber is then evacuated and sealed. The vessel containing chlorine is then opened and the first container is heated to 210-220°C. After that the vessel containing lithium nitride and ammonium is opened and the second container is heated to 850-870°C. The chamber is sealed again and the containers are separated. As a result the first container contains unneeded impurity substances, and the second contains solid gallium nitride.
EFFECT: obtaining pure gallium nitride and reduced pollution of the environment as a result of preventing substances used in the synthesis process from escaping.
1 dwg, 3 ex
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