2B: Volatile Metals Flashcards
Zn, Cd, Hg
1
Q
- Metals have relatively low melting pt.
- Exhibits auto complexation / form complex ion
A
Volatile metals
1
Q
Volatile metals
A
Zn+2, Cd+2, Hg+1+2
2
Q
- immune-stimulant also Ge (CONZACE - Zn, Vits A, C, & E)
- (+) insulin
A
Zinc
3
Q
Uses of Zinc is similar to ______ and _______
A
Al and Zr
4
Q
antidote for parakeratosis
A
NaHCO3
4
Q
(+) Stink bomb manufacture
A
Cadmium
4
Q
Uses of zinc
A
- astringent
- antiseptic
- antiperspirant
- protectant
5
Q
Deficiency of Zinc
A
- parakeratosis
6
Q
Cadmium has high affinity for:
A
metallothioproteins (stress proteins)
7
Q
Poisoning of cadmium
A
Itai-itai/painful bone disease (osteomalacia - bone softening)
8
Q
Other terms for Mercury
A
- Hydrargyrum
- Quicksilver
- Messenger of God
- Asoge (tagalog)
9
Q
2 forms of mercury
A
- Mercurous (Hg2^2+)
- Mercuric (Hg^2+)
10
Q
Less toxic (more difficult to absorb)
(mercury)
A
Mercurous
11
Q
Toxic forms of mercury
A
- Hg+2 > Hg,+2
- Org. Hg > lnorg. Hg
12
Q
Mercury is the only ____ metal
A
Liquid
13
Q
mercury is used in:
A
-Thermometers
- amalgams (dental cement)
14
Q
Sources of mercury
A
Cinnabar (Aethrop’s mineral), & HgS
15
Q
Uses of mercury
A
- 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
16
Q
Disease from mercury
A
Minamata (from fish)
17
Q
Antidote for minamata
A
EDTA
