CRYSTAL MORPHOLOGY AND GROWTH-RATE OF NAPHTHALENE IN VARIOUS PROCESSES INVOLVING SUPERCRITICAL CARBON-DIOXIDE

An experimental apparatus was designed to investigate the crystal morp hology and growth rate of naphthalene crystals grown in various proces ses using supercritical carbon dioxide, including SCG (single crystal growth), SESS (slow expansion of supercritical solution), and RESS (ra pid expansion of supercritical solution). Photographs were taken to id entify crystal habits. The growth rates of naphthalene in the SCG and SESS processes were measured and compared with those in a RESS process .