is generic, loosely defined term covering a range of light petroleum distillates (see distillation). Included in the naphtha classification are: gasoline blending stocks, mineral spirits, and a broad selection of petroleum solvents. In refining, the term light crude naphtha (LCN) usually refers to the first liquid distillation fraction, boiling range 32°C to 100°C (90°F to 175°F), while heavy crude naphtha is usually the second distillation fraction, boiling range 163°C to 218°C (325°F to 425°F).