Patent ID: 8568532

Claim:
A reaction container used for growing a nitride single crystal of a metal belonging to III group by charging raw materials of a nitride single crystal of a metal belonging to III group and a flux in a crucible; containing said crucible in a reaction container; containing said reaction container in an outer container; containing said outer container in a pressure container; and generating a melt in said crucible while supplying an atmospheric gas containing nitrogen into said outer container to grow said nitride single crystal; wherein said reaction container comprises a main body containing said crucible and a lid mounted on said main body; wherein said main body comprises a bottom wall and a side wall comprising a fitting face and a groove opening at said fitting face so that the atmospheric gas is supplied into the crucible through the groove; and wherein said lid comprises an upper plate part comprising a contact face contacting said fitting face and a flange part extending from said upper plate part and surrounding an outer side of said side wall.