*This presentation is all about the periodic element zinc.It talks about the background of this element.

1. PREPARED BY:
RUTH VANESSA R.ALAN
HUMSS 12-A
ZINC

2. Zinc was discovered by Andres Maggraf at
1746 in Germany.
Origin Name: From the German Word
“zink”
Centuries before zinc was recognize as a
distinct element
It is used for making brass (a mixture of
copper and zinc) a brass dating from
between 1400-1000 BC has been found in
Palestine.
HISTORY

3.  Zinc was
seen in India
as a New
Element
 Zinc
compound
are used in
healing
wounds and
sore eyes

4. In Zawar, India both zinc metal and
oxide were produced from 12th-16th
century.
An alloy containing 87% zinc was
found in prehistoric ruins in
Transylvania.
Zinc was recognized as a separate
metal in Europe in 1546.
In 1743 the first European Zinc
smelter was established at Bristol in
the UK.

5. OVERVIEW
 1990: P&G add Zinc to Fixodent
 1996: Block Drug Co. adds zinc to
Super Poligrip (SPG)
 2001: GSK acquires Block and right
to sell SPG
 2003: GSK adds zinc to SPG free
 2005: FDA receive adverse event
about zinc poisoning from poligrip

6. 2006: GSK settles 2 zinc poisoning lawsuits
and removes zinc SPG free
2008: Neurology reports link between zinc in
SPG & Fixodent denture creams and zinc
poisoning, copper deficiency, and
myelopathy
2009: Bernstein Liebhard (BL)Partner Eric
Chaffin appears in Good Morning America
re dentures cream lawsuits; BL files 15
federal cream case in federal and state
courts; BL appointed to leadership in
federal and state courts litigations; BL
continues to review and accept cases from

7. According to the Jefferson
National Linear Accelerator
Laboratory, the properties of
zinc are:
 Atomic number (number
of protons in the
nucleus): 30
 Atomic symbol (on the
Periodic Table of
Elements): Zn
FACTS ABOUT ZINC

8.  Atomic weight (average mass of the
atom): 65.38
 Density: 7.134 grams per cubic
centimeter
 Phase at room temperature: Solid
 Melting point: 787.15 degrees
Fahrenheit (419.53 degrees Celsius)
 Boiling point: 1,665 F (907 C)
 Number of isotopes (atoms of the
same element with a different number
of neutrons): 25; 5 stable

9.  Most common isotopes: Zn-64 (48.6
percent naturally occurring), Zn-66 (27.9
percent naturally occurring), Zn-67 (4.1
percent naturally occurring), Zn-68 (18.8
percent naturally occurring) and Zn-70 (0.6
percent naturally occurring)
 But zinc was not as popular as copper or iron,
according to a 2006 paper in the open-access
journal Ancient Asia; it boils away at a lower
temperature than is required to extract it from its
ore, so ancient smelting techniques were not up
to the task of isolating zinc.

10. 1. Increases Immunity and Fights colds
- Zinc is often taken as a natural over-
the-counter remedy for fighting colds and
symptoms of illnesses. When taken for at least
five months, zinc may reduce your risk of
becoming sick with the common cold, plus
supplementing once you already feel sick can
speed up the healing process.
TOP HEALTH BENEFITS OF
ZINC

11. 2. Acts as Powerful Antioxidant that May
Help Fights Cancer
Zinc is an effective anti-inflammatory and
antioxidant agent, helping fight oxidative stress and
decrease the chance for disease development,
including as a natural cancer treatment.
Especially in elderly patients, zinc benefits
include its ability to support healthy cell division,
preventing cancerous cell mutation and stunting
tumor growth.

12. 3.Balance Hormones
Zinc benefits hormonal health and fertility
because it plays an important role in hormone
production, including increasing testosterone
naturally, which has very widespread roles in both
men and women. Zinc also impacts female sex
hormones and is even involved in the creation and
release of eggs within and from the ovaries.

13. Fights diabetes
Maintains Heart Healthy by
Supporting Blood Vessels
Prevents Diarrhea
Increases fertility
Aids in Nutrition Absorption and
digestion
OTHER BENEFITS OF ZINC

14. 17% of zinc production goes to bronze and
brass, another 17% is use in die-casting, with
the production of metal parts with the use of
molds.
The rest goes to manufacturing uses, such as
creating roofing materials or into chemical
compounds such as zinc oxide.
Zinc also has a role in the health. It’s an
essential mineral that keeps the body’s
humming.
USEFUL ELEMENT

15. • Zinc's role in life can't be understated. In fact, the
element appears to be a crucial component of the
meeting between sperm and egg.
• A December 2014 video, published alongside a study
in the journal Nature Chemistry, shows the fireworks
of fertilization as an egg releases "sparks" of zinc after
enveloping a sperm. Researchers are still exploring
this phenomenon, but they have discovered that
without the zinc eruptions, the egg cannot develop.
CURRENT RESEARCH

16. • Zinc "might even be working as a master switch
to tell the cell when to divide," study co-author
Thomas O'Halloran, a chemist at Northwestern
University in Chicago, told Live Science.
• Cells typically concentrate zinc until there are
about as many zinc atoms in the cell as there are
base pairs in the organisms' genome, O'Halloran
said. But some cells concentrate more than that.
• Cells in the brain, particularly the memory
region known as the hippocampus, also hoard
zinc, as do insulin-releasing cells in the
pancreas, O'Halloran added.

17. Zinc is available
through foods
such as beef,
pork, shellfish,
peanuts, and
legumes. Severe
zinc deficiency
may still be
found in
developing
countries.
THANK YOU !!!