kemikaalseid

Kemikaalseid is an Estonian adjectival form used in grammar. It is the partitive plural form of the adjective kemikaalne, which means chemical or relating to chemistry. This form is used to describe a plural noun in the partitive case, often to express an indefinite quantity or a non-specific subset of items.

Common contexts include scientific, industrial, and regulatory language. Phrases such as kemikaalseid aineid (chemical substances), kemikaalseid lahuseid (chemical solutions), and kemikaalseid omadusi (chemical properties) illustrate its function. In Estonian, the partitive plural ending -id marks that the described set is not fully specified or is counted non-exactly.

Kemikaalne as a root is derived from kemikaal (chemical) and the usual adjective suffixes; kemikaalseid contrasts with kemikaalsed, the nominative plural form used when the described set is the subject of the sentence. The form is common in safety data sheets, regulatory texts, and scientific writing where non-specific quantities of chemicals are discussed.