2B: Volatile Metals Flashcards

Zn, Cd, Hg

1
Q
  • Metals have relatively low melting pt.
  • Exhibits auto complexation / form complex ion
A

Volatile metals

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1
Q

Volatile metals

A

Zn+2, Cd+2, Hg+1+2

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2
Q
  • immune-stimulant also Ge (CONZACE - Zn, Vits A, C, & E)
  • (+) insulin
A

Zinc

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3
Q

Uses of Zinc is similar to ______ and _______

A

Al and Zr

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4
Q

antidote for parakeratosis

A

NaHCO3

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4
Q

(+) Stink bomb manufacture

A

Cadmium

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4
Q

Uses of zinc

A
  • astringent
  • antiseptic
  • antiperspirant
  • protectant
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5
Q

Deficiency of Zinc

A
  • parakeratosis
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6
Q

Cadmium has high affinity for:

A

metallothioproteins (stress proteins)

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7
Q

Poisoning of cadmium

A

Itai-itai/painful bone disease (osteomalacia - bone softening)

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8
Q

Other terms for Mercury

A
  • Hydrargyrum
  • Quicksilver
  • Messenger of God
  • Asoge (tagalog)
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9
Q

2 forms of mercury

A
  • Mercurous (Hg2^2+)
  • Mercuric (Hg^2+)
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10
Q

Less toxic (more difficult to absorb)

(mercury)

A

Mercurous

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11
Q

Toxic forms of mercury

A
  • Hg+2 > Hg,+2
  • Org. Hg > lnorg. Hg
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12
Q

Mercury is the only ____ metal

A

Liquid

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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