Phosphorus

St. Elmo’s Fire

Phosphorus is also known as __________ or light-carrier

light-carrier

Phosphorus is also known as St. Elmo’s Fire or _______

11th

What rank is Phosphorus in the most abundant element in Earth’s Crust

severe burns

As toxicity, Phosphorus may cause

Phossy Jaw

A chronic poisoning of Phosphorus which is clinically manifested with necrosis of mandible

commonly seen at the workers in the match-stick industry

Red Phosphorus

used in modern match-sticks

non-poisonous & non-flammable in air, except at high

temperature

formed when White P is heated to 250°C or at a lower

temp in the presence of sunlight

White Phosphorus or Yellow Phosphorus

has distinctive, disagreeable, ozone-like odor

toxic / poisonous form of phosphorus

greenish light

When White Phosphorus or Yellow Phosphorus is exposed to air in the dark, it emits_______ (phosphorescence) & gives off White Fumes (exothermic) with garlic odor

Scarlet P

PbBr with Hg @ 240°C

Violet P

white P with Na @ 200°C

under very high pressure

Black/Metallic P

white P with Pb @ 500-530°C

under high pressure

Phosphate

A compound of P used as antacids or cathartics

Mg

insoluble phosphates: __ ; Sr ; Ba ; Ca

Sr

insoluble phosphates: Mg ; __ ; Ba ; Ca

Ba

insoluble phosphates: Mg ; Sr ; __ ; Ca

Ca

insoluble phosphates: Mg ; Sr ; Ba ; __

Phosphoric Acid

used to form soluble salts of insoluble medicinal base

Hypophosphorous Acid

• used as an antioxidant in Hydroiodic Acid Syrup & Ferrous Iodide Syrup

• powerful reducing agent