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Polyhalogenated biphenyls, liquid

Polyhalogenated biphenyls, solid

Polyhalogenated terphenyls, liquid

Polyhalogenated terphenyls, solid

Polymeric beads, expandable evolving flammable vapour

Polymerizing substance, liquid, stabilized, n.o.s *

Polymerizing substance, liquid, temperature controlled, n.o.s *

Polymerizing substance, solid, stabilized, n.o.s *

Polymerizing substance, solid, temperature controlled, n.o.s *

Potassium

Potassium arsenate

Potassium arsenite

Potassium borohydride

Potassium bromate

Potassium chlorate

Potassium chlorate, aqueous solution

Potassium chlorate, aqueous solution

Potassium cuprocyanide

Potassium cyanide, solid

Potassium cyanide solution