inorganic rubber Phosphate(1-), hexachloro-, hydrogen, compd. with ammonium chloride ((NH4)Cl) polymer with pentachlorophosphorane PDCP POLY(PHOSPHONITRILIC CHLORIDE) POLY(DICHLOROPHOSPHAZENE) 1,1,1,3,3,5,5,7,7-Nonachloro-7-[(trichlorophosphoranylidene)amino]-3λ5,5λ5,7λ5-tetraphosphaza-2,4,6-trien-1-ium hexachlorophosphate(1-) 1,1,1,3,3,5,5,7,7-Nonachloro-7-[(trichlorophosphoranylidene)amino]-3λ5,5λ5,7λ5-tetraphosphaza-2,4,6-trien-1-ium hexachlorophosphate(1-) Poly(phosphonitrilic chloride)phosphonitrilecatalyst