Every corporation organized under this chapter may purchase, hold, sell and transfer shares of its own capital stock; but no such corporation shall use its funds or property for the purchase of its own shares of capital stock when such use would cause any impairment of the capital of the corporation. Shares of its own capital stock belonging to the corporation shall not be voted upon directly or indirectly. Nothing in this section shall be construed as limiting the exercise of the rights given by section 223 of this title.