ChemEd X

ACGIH's Threshold Limit Values (TLVs) define safe workplace exposure levels for hundreds of chemicals — from acetone to xylene. TLVs are the global benchmark for occupational chemical safety, adopted by regulators worldwide.

Firmenich pioneered the commercial synthesis of norambreinolide — the ambergris note in fine fragrances. We source naturals ethically while pushing white biotechnology: fermentation-produced ingredients replacing petrochemical routes.

Grace's fluid catalytic cracking (FCC) catalysts are the heart of every modern refinery — zeolite chemistry that converts crude oil fractions to gasoline. Our UNICRACKING technology processes the heaviest crude into usable products.