Chemicals
Chemicals
661
The production of chemicals; also the chemicals themselves (chemical products), especially from the point of view of their further processing and utilization
Denote individual inorganic and organic constituents by :546... and :547...
Broader Terms
More specific terms
- NT4 661.1 ↓ Special chemical industries
- NT4 661.2 ↓ Production of sulphur and its derivatives
- NT4 661.3 ↓ Production of soda and potash, alkalis
- NT4 661.4 ↓ Production of halogens and halogen compounds, inorganic peroxo-compounds
- NT4 661.5 ↓ Production of nitrogen compounds. Fixation of nitrogen. Nitrogen industry in general
- NT4 661.6 ↓ Production of various nonmetals and semimetals (metalloids), and their compounds
- NT4 661.7 ↓ Production of organic substances. Organic chemicals
- NT4 661.8 ↓ Metallic compounds in general. Salts. Mineral compounds
- NT4 661.9 ↓ Production of gases
- Español Productos químicos
- Portugüés Químicos
- ExactMatch: http://udcdata.info/055582
