2B: Volatile Metals Flashcards
Zn, Cd, Hg
- Metals have relatively low melting pt.
- Exhibits auto complexation / form complex ion
Volatile metals
Volatile metals
Zn+2, Cd+2, Hg+1+2
- immune-stimulant also Ge (CONZACE - Zn, Vits A, C, & E)
- (+) insulin
Zinc
Uses of Zinc is similar to ______ and _______
Al and Zr
antidote for parakeratosis
NaHCO3
(+) Stink bomb manufacture
Cadmium
Uses of zinc
- astringent
- antiseptic
- antiperspirant
- protectant
Deficiency of Zinc
- parakeratosis
Cadmium has high affinity for:
metallothioproteins (stress proteins)
Poisoning of cadmium
Itai-itai/painful bone disease (osteomalacia - bone softening)
Other terms for Mercury
- Hydrargyrum
- Quicksilver
- Messenger of God
- Asoge (tagalog)
2 forms of mercury
- Mercurous (Hg2^2+)
- Mercuric (Hg^2+)
Less toxic (more difficult to absorb)
(mercury)
Mercurous
Toxic forms of mercury
- Hg+2 > Hg,+2
- Org. Hg > lnorg. Hg
Mercury is the only ____ metal
Liquid
mercury is used in:
-Thermometers
- amalgams (dental cement)
Sources of mercury
Cinnabar (Aethrop’s mineral), & HgS
Uses of mercury
- Protein precipitant (heavy metal),
- Antiseptic tx of syphilis,
- parasiticide,
- fungicide,
- cathartic,
- diuretic (useful for cardiac edema)
- remove Hg that falls into cracks, cover w/ sulfur to form HgS
Disease from mercury
Minamata (from fish)
Antidote for minamata
EDTA