PHENOLPHTHALEIN; PHENOL PHTHALEIN n.
A white or yellowish white crystalline substance, C20H14O4, formed by condensation of the anhydride of phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids. This reaction, being very delicate, is used as an indicator.
PHOSPHORUS n.
A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It…
PLANTAIN n.
rical, slightly curved, and, when ripe, soft, fleshy, and covered with a thick but tender yellowish skin. The plantain is a staple article of food in most tropical countries, especially when cooked. Plantain cutter, or Plantain eater (Zoöl.), any one of several large African birds of the genus Musophaga, or family Muso…