Abstract: An aqueous fire sprinkler fluid containing a C4 or greater carboxylate salt for freezing point depression is described. The salts may be used in conjunction with glycols. The salts decrease the combustibility and give lower viscosity than higher glycol fluids, both benefitting fire sprinkler systems. These salt solutions are friendly to metal and CPVC pipes and are thus useful for fire sprinkler systems by not causing environmental stress cracking of the CPVC components and not being corrosive to the metal parts.

Abstract: This invention relates to a synergistic combination of molybdate salts (e.g., calcium molybdate) and magnesium hydroxide to suppress both smoke and flame in polymeric compositions, such as plastic piping, profile applications, wire and cable, semiconductor and electrical conduit application, to name a few. In some embodiments, the technology relates to polyvinyl chloride (“PVC”) and chlorinated polyvinyl chloride (“CPVC”) compounds, among other polymer resin containing compounds, having improved smoke and flame performance from the synergistic combination of molybdate salts and magnesium hydroxide.

Abstract: An aqueous fire sprinkler fluid containing a C4 or greater carboxylate salt for freezing point depression is described. The salts may be used in conjunction with glycols. The salts decrease the combustibility and give lower viscosity than higher glycol fluids, both benefitting fire sprinkler systems. These salt solutions are friendly to metal and CPVC pipes and are thus useful for fire sprinkler systems by not causing environmental stress cracking of the CPVC components and not being corrosive to the metal parts.