Glossary of Terms
A substance usually used in small amounts relative to the reactants, that either causes or accelerates the rate of a chemical reaction without being affected in the process.
– Emitting a gas (odor) making it porous.
Good enough to be used in foods
Contain little or few potential allergic irritants
– Good enough to be used medically
– Chemicals used to make harder materials much softer.
A natural or synthetic compound that has large molecules made up of repeated simple monomers
Allow a gas or liquid to pass through the pores
A large class of synthetic products that have similar properties of natural resins but differ chemically
Something that becomes hard when cooled and soft when heated.
Something that is permanently hard when heated or cured