DEVELOPMENT OF FIRE RESISTANT WATER BASED HYDRAULIC FLUIDS.
Bimonthly rept. no. 2,
HOUGHTON (E F) AND CO PHILADELPHIA PA
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Water soluble compounds were synthesized which contain phosphorous, nitrogen, chlorine or boron in the molecule. It has been established, through the years, that these elements are among the few needed to impart fire resistance in many hydraulic systems. These materials were evaluated by themselves and in a prototype water-glycol base essentially for flash point, fire point, autogenous ignition temperature, solubility and viscosity increasing tendency. Autogenous ignition temperatures of over 1000F were observed when as little as 4 percent of a borate additive was incorporated. Author