2819  Industrial Inorganic Chemicals, Not Elsewhere Classified

Establishments primarily engaged in manufacturing industrial inorganic
chemicals, not elsewhere classified. Establishments primarily engaged
in mining, milling, or otherwise preparing natural potassium, sodium, or
boron compounds (other than common salt) are classified in industry 1474.
Establishments primarily engaged in manufacturing household bleaches are
classified in industry 2842; those manufacturing phosphoric acid are
classified in industry 2874; and those manufacturing nitric acid, anhydrous
ammonia, and other nitrogenous fertilizer materials are classified in
industry 2873.