11.   MacDermid makes specialty chemicals used to clean and coat metals and etch patterns in circuit boards.

12.   Proponents of so-called green nurseries say the chemicals used to grow the fiber and process the fabric may have wreaked ecological havoc.

13.   The chemicals used to maintain sanitation may be toxic to humans.

14.   The chemicals used to grow the fiber and process the fabric may have wreaked ecological havoc.

15.   The company makes specialty chemicals used in the manufacture of circuit boards and cleaning of metals.

16.   The Waterbury-based company makes specialty chemicals used in the manufacture of circuit boards and the cleaning of metals.

17.   The Waterbury-based company makes specialty chemicals used to clean and coat metals.

18.   Unlike BASF, which has resolutely committed itself to chemicals, Hoechst has always had to buy the building-block chemicals used to make plastics and resins.

19.   It said Zakaria, which was on its way from Greece to Lebanon carrying chemicals used for making ceramics, had sustained a crack in a Greek seaport.

20.   They say the chemical used, a variant of the popular backyard fertilizer Roundup, is ecologically harmless and safe for humans.