Alliance Chemical / Resource Library
Technical chemical guides, safety references, product comparisons and industry insights from the Alliance Chemical team.
297 articles · updated September 2026
Polyester is almost always polyethylene terephthalate (PET), a plastic made by joining two raw materials: purified terephthalic acid (PTA) and monoethylene glycol (MEG), the same ethylene glycol molecule used in antifreeze. Each repeat unit of the chain (192 g/mol) consumes...
Read articleThe Bell Rocket Belt was a one-man flying pack built by Bell Aerosystems for the U.S. Army, flown untethered for the first time by engineer Harold...
n-Butyl acetate (CAS 123-86-4, CH3COO[CH2]3CH3, molecular weight 116.2) is a medium-evaporating ester solvent used in coatings, inks, adhesives and industrial cleaning. It is also the industry’s...
Freedom 7, the flight that made Alan Shepard the first American in space on May 5, 1961, was launched by a Mercury-Redstone rocket burning ethyl alcohol...
Banana oil is the common name for isoamyl acetate (CAS 123-92-2, 3-methylbutyl acetate, C7H14O2, MW 130.18) - the ester that carries most of the smell of...
Water expands by about 9% when it freezes (USGS). In the winter of 1784–85 Major Edward Williams of the Royal Artillery filled 13-inch iron mortar shells...
Citric acid (C6H8O7, CAS 77-92-9) is made commercially by fermentation, not by squeezing lemons. About 99% of world supply comes from microbial fermentation, mostly with the...
Denatured alcohol is ethanol (C₂H₆O, CAS 64-17-5) to which a small amount of a toxic or foul-tasting additive has been blended, under a federally published recipe,...
Methyl ethyl ketone (MEK, butan-2-one, C4H8O, CAS 78-93-3) is the fast-evaporating ketone solvent used to make magnetic recording tape: iron oxide particles and a vinyl binder...
The Alkali Act 1863 was the United Kingdom statute that forced alkali works to condensenot less than 95 per cent of the muriatic acid gas (gaseous...
Deionized water (DI water, H₂O, CAS 7732-18-5) is water whose dissolved mineral ions have been exchanged out over ion-exchange resin, leaving essentially H₂O plus any non-ionic...
Elixir Sulfanilamide was a raspberry-flavored liquid antibiotic sold by the S.E. Massengill Company of Bristol, Tennessee, in September 1937. Its solvent was diethylene glycol (DEG, CAS...
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