This industry comprises establishments primarily engaged in manufacturing basic inorganic chemicals (except industrial gases and synthetic dyes and pigments). Illustrative Examples: Alkalies manufacturing Hydrochloric acid manufacturing Aluminum compounds, not specified elsewhere by process, manufacturing Potassium inorganic compounds, not specified elsewhere by process, manufacturing Carbides (e.g., baron, calcium, silium, tungsten) manufacturing Radioactive isotopes manufacturing Carbon black manufacturing Sulfides and sulfites manufacturing Chlorine manufacturing Sulfuric acid manufacturing Cross-References. Establishments primarily engaged in-- ? Manufacturing industrial gases--are classified in Industry 32512, Industrial Gas Manufacturing; ? Manufacturing inorganic dyes and pigments--are classified in Industry 32513, Synthetic Dye and Pigment Manufacturing; ? Manufacturing household bleaches--are classified in Industry 32561, Soap and Cleaning Compound Manufacturing; ? Mining and/or beneficiating alkalies--are classified in Industry 21239, Other Nonmetallic Mineral Mining and Quarrying; ? Manufacturing chlorine preparations (e.g., for swimming pools)--are classified in Industry 32599, All Other Chemical Product and Preparation Manufacturing; ? Manufacturing nitrogenous and phosphoric fertilizers and fertilizer materials--are classified in Industry 32531, Fertilizer Manufacturing; ? Manufacturing aluminum oxide (alumina)--are classified in Industry 33131, Alumina and Aluminum Production and Processing; ? Manufacturing inorganic insecticidal, herbicidal, fungicidal and pesticidal preparations--are classified in Industry 32532, Pesticide and Other Agricultural Chemical Manufacturing; and ? Manufacturing photographic chemicals--are classified in Industry 32599, All Other Chemical Product and Preparation Manufacturing.