Sulfides are chemical compounds containing sulfur, categorized into inorganic, organic, and phosphine sulfides. Inorganic sulfides consist of ionic compounds with the sulfide ion, while organic sulfides contain sulfur bonded to organic groups, resembling ethers in structure. Sulfides have various industrial applications, can release toxic hydrogen sulfide, possess strong odors, and have both beneficial health properties and hazards due to their flammability.

1. SULFIDE
JONEL E. ASDILLO, LPT

2. Sulfide , also spelled
SULPHIDE
-any three classes of
chemical compounds
containing the
element SULFUR.

3. It is an inorganic anion of sulfur with the
chemical formula S2-
or a compound
containing one or more S2-
ions.

4. There are three classes of Sulfides:
1. Inorganic sulfides
2. Organic sulfides( sometimes called thioethers)
3. Phosphine sulfides

5. INORGANIC SULFIDES
- are ionic compounds containing the
negatively charged sulfide ion, S2−
; these
compounds may be regarded as salts of
the very weak acid hydrogen sulfide.

6. PHOSPHINE SULFIDES
-are formed from the reaction of organic
phosphines with sulfur, in which the sulfur
atom is linked to the phosphorus by a bond
that has both covalent and ionic properties.

7. ORGANIC SULFIDES
- are compounds in which a sulfur
atom is covalently bonded to two
organic groups.

8. two organic groups are
bonded to a sulfur atom
(as in RSR′) are the
sulfur analogs of ethers
(ROR′)
ether
sulfide

9. The organic groups, R and R′,
may be both alkyl, both aryl, or
one of each.

10. Sulfide Nomenclature
R-S-R is generic form of
sulfide functional group
Thioethers- sulfur analog
of ethers, its like an ether
with a thio or sulfur
replacing the oxygen which
means naming similarly to
diethyl ether
methyl
phenyl
ether

11. Sulfide Nomenclature
So if we change the
oxygen to sulfur all
we need to do is
change from diethyl
ether to
diethyl
sulfide
methyl phenyl
sulfide

12. IUPAC SYSTEM
In IUPAC
system, sulfides
are substituents
like ethers
Example in
Ether
diethyl
ether
ethoxyethan
e
methyl phenyl
ether
methoxybenzene
ethoxy substituents
methoxy
substituents

13. IUPAC SYSTEM
In IUPAC
system, sulfides
are substituents
like ethers
Alkylthio-substituents
Diethyl
sulfide
Ethylthioethan
e
Methoxy
benzene
Methylthiobenzene

16. Sulfides can be named most readily by naming each of the
two carbon groups as a separate word followed by a space
and the word sulfide.
EXAMPLE:
•CH3-CH2-S-CH3
•ethyl methyl sulfide

17. EXAMPLE:
Methyl-1- methylpropyl sulfide

18. EXAMPLE:
Ethyl-cyclopentyl sulfide

19. EXAMPLE:
CH3-CH2-S-CH2-CH3
Diethyl Sulfide

20. EXAMPLE:
CH3-CH2-S-CH3
Ethyl methyl sulfide

21. -Sulfides of many important metallic elements are naturally
occurring minerals. For example, pyrite, which is also
called fool’s gold owing to its brassy yellow colour,
is a sulfide of iron with the formula FeS2.
-Pyrite is a major source of iron and is one of the most
abundant of the sulfur minerals. Zinc, cadmium, mercury,
copper, silver, and many other elements occur in nature as
sulfides.

22. Sulfides are
characterized by their
strong odors, which are
similar to thiol odor.
This odor limits the
applications of volatile
sulfides.

23. In terms of their physical properties they
resemble ethers, but are less volatile,
higher melting, and less hydrophilic. These
properties follow from the polarizability of
the divalent sulfur center, which is greater
than that for oxygen in ethers.

24. HAZARDS and BENEFITS
Some metal sulfides when exposed to a
strong mineral acid, will release which
rotting biomass releases also
toxic hydrogen sulfide.

25. HAZARDS and BENEFITS
Organic Sulfides are highly flammable

26. HAZARDS and BENEFITS
Almost all organic sulfides have a strong
stench

27. The active substance in onions, garlic,
and other members of the allium
families are allyl sulfides have many
health benefits including, protection
against cancer, lower cholesterol, reduce
the risk of blood clots and heart disease.

28. Hydrogen Sulfides is used primarily to
produce Sulfuric acid and Sulfur. It is also
used to create a variety of inorganic
sulfides used to create pesticides,
leathers, dyes and Pharmaceuticals.
Hydrogen sulfide is used to produce
heavy water for Nuclear Power Plants

29. Hydrogen Sulfides is found naturally in
crude petroleum and natural gas . It also
produced through the bacterial
breakdown of organic matter. Hydrogen
sulfide can be produced by decomposing
human and animal waste and is found in
sewage treatment plants and livestock
areas.

30. ACTIVITY TIME:
CH3-CH2-S-CH3
answer
ethyl methyl sulfide

31. CH3-CH2-S-CH2-CH3
answer
Diethyl Sulfide

32. Ethyl-cyclopentyl sulfide
answer

33. Thank you!