spumific

plural spumifics

1. chemistryA chemical that decomposes to produce large quantities of gas

   This type of structure is provided by gases that are released when a third material, the spumific, is pyrolytically degraded.

   1973, Pigment Handbook: Applications and markets, page 131

   2 more examples

   The coating contains a carbonific compound that reacts with the intumescent catalyst to form a carbon residue, and a spumific compound that decomposes to produce large quantities of gas.

   1979, National Research Council (U.S.). Committee of Fire Safety Aspects of Polymeric Materials, Elements of Polymer Fire Safety and Guide to the Designer, page 49

   Most intumescent systems require an acid source (catalyst), a char-forming compound (carbonific), and a gas-evolving compound (spumific).

   2014, Jiri George Drobny, Handbook of Thermoplastic Elastomers, →ISBN, page 19