T

1. Dosen Pengampu :
Prof. Dr. Suyono, M.Pd.
Dr. IGM Sanjaya, M.Si
Oleh :
Noera Wahdaniyah
21070795007
S2 Pendidikan Sains
KOLOID

2. JENIS CAMPURAN
Salah satu prinsip yang membedakan bentuk satu campuran dengan
campuran lainnya adalah ukuran partikel. Berdasarkan hal ini campuran
dibagi menjadi tiga yaitu :
SUSPENSI KOLOID LARUTAN
1 2 3
(Brady,2005)

3. SUSPENSI
 Jika pada campuran terjadi pemisahan yang jelas hingga dapat
dibedakan komponen satu dan yang lainnya, maka sistem ini
dinamakan suspensi (Sunarya, 2012).
 Dalam suatu suspensi, paling sedikit satu komponen yang secara
relatif mempunyai partikel besar akan saling tersebar dengan
komponen lainnya. Contohnya pasir halus yang tersuspensi dalam
air, atau salju yang ditiup ke udara, atau endapan yang terbentuk
pada campuran reaksi. Dalam semua keadaan ini, ukuran partikel
yang tersuspensi cukup besar untuk dapat dilihat baik oleh mata
telanjang atau dengan mikroskop. Kemudian apabila campuran ini
tidak diaduk terus, maka partikel-partikel dari suspensi ini akan
mengendap karena pengaruh gaya gravitasi bumi, walaupun
kecepatannya tergantung dari besarnya partikel. Pasir yang kasar
akan mengendap dengan cepat dalam air, tetapi tanah lumpur
dalam air akan mengendap dengan lambat (Brady,2005).

4. LARUTAN
 Jika zat yang dicampurkan dapat terdispersi ke dalam
cairan menjadi molekul atau ion, maka akan terbentuk
larutan dimana komponen campuran tidak lagi dapat
dibedakan satu dengan lainnya/membentuk satu fase
(Sunarya,2012).

5. KOLOID
 Koloid berasal dari kata Yunani yaitu kola, yang berarti lem. Lem
zaman dahulu adalah suatu disperse koloid dalam air.
 Koloid, disebut juga dispersi koloid atau suspensi koloid adalah
campuran yang berada antara larutan sejati dan suspensi.
 Contoh adalah susu segar yang terdiri dari butir-butir halus dari
lemak mentega yang terdispersi dalam fase cair yang juga
mengandung kasein (suatu protein) dan beberapa zat lainnya.
Dalam koloid seperti susu, partikel zat terlarutnya lebih besar
daripada partikel larutan, tetapi lebih kecil dari pertikel yang
mengapung pada suspensi. Oleh karena bentuk ukuran dari
partikel koloid dibandingkan dengan ukuran medium di mana
partikel itu tersebar, maka di sini tidak digunakan istilah zat
terlarut dan pelarut melainkan fase terdispersi dan medium pen
dispersi.
(Brady,2005)

6. KOLOID
 Ukuran partikel dari ketiga jenis campuran tersebut dapat dilihat sebagai berikut
 Karena ukuran partikel amat kecil, maka koloid tidak dapat disaring dengan kertas saring
biasa dan filter porselin, tetapi dapat dengan filter ultra atau kolodion, karena pori-
pornya lebih kecil. Berikut tabel ukuran macam-macam saringan
(Brady,2005)
Jenis Campuran Ukuran Jari-jari (m)
Larutan 10-7-10-6
Koloid 10-6-10-4
Suspensi >10-4
Macam Saringan Diameter (m)
Kertas saring 2 x 10-3-10 x 10-3
Filter porselin 10-5
Filter ultra (kolodion) 10-6

7. KOLOID
 Koloid disebut juga disperse koloid yang dapat dibagi atas delapan jenis sebagai berikut
(Brady,2005)
Fase Terdispersi Medium
Pendispersi
Jenis Koloid Contoh
Gas Cair Buih Busa sabun, busa
air
Gas Padat Busa Batu apung, kerupuk
Cair Gas Aerosol cair Awan, kabut
Cair Cair Emulsi Susu
Cair Padat Emulsi padat Keju, mentega
Padat Gas Aerosol padat Debu, asap
Padat Cair Sol Cat
Padat Padat Sol padat Zat warna dalam
kaca

8. JENIS CAMPURAN
MARS
Despite being red,
Mars is a cold place
JUPITER
It’s the biggest planet
in the Solar System
VENUS
Venus has a beautiful
name, but it’s hot
Salah satu prinsip yang membedakan bentuk satu campuran dengan
campuran lainnya adalah ukuran partikel

9. Project Schedule
Here you could describe
the topic of the section
Project Timeline
Here you could describe
the topic of the section
Status Report
Here you could describe
the topic of the section
AGENDA
1.
2.
3.
1.
2.
3.

10. 01 SECTION
You could enter a subtitle here
if you need it

11. ABOUT THE
PROJECT
Mercury is the closest planet to
the Sun and the smallest one in
the Solar System—it’s only a bit
larger than the Moon

12. ABOUT THE PROJECT
Despite being red,
Mars is a cold
place
MARS
Jupiter is a gas
giant and the
biggest one
JUPITER
Neptune is the
farthest planet
from the Sun
NEPTUNE
Saturn is
composed mostly
of hydrogen
SATURN

13. This is a quote. Words full of
wisdom that someone
important said and can make
the reader get inspired
-SOMEONE FAMOUS
“

14. PROJECT PROPOSAL
JUPITER
MERCURY
Mercury is the closest
planet to the Sun
Jupiter is a gas giant
and the biggest planet
VENUS
Venus has a beautiful
name
MARS
Despite being red,
Mars is a cold place
SATURN
Saturn is composed
mostly of hydrogen
NEPTUNE
Neptune is the
farthest planet from
the Sun

15. PROJECT SCHEDULE
Jan. 1 - Feb. 28
Jan. 1 - Jan. 31
Feb. 1 - Mar. 31
PHASE 1
Task 1
Task 2
JAN FEB MAR APR MAY JUN

16. CHECKLIST
OPTION A OPTION B OPTION C OPTION D
Task 1
Task 2
Task 3
Task 4

17. PROJECT TIMELINE
MERCURY
Mercury is the
closest planet to
the Sun
MARS
Despite being red,
Mars is actually a
cold place
JUPITER
Jupiter is the
biggest planet in
the Solar System
VENUS
Venus has a
beautiful name,
but it’s terribly hot
1 2 3 4

18. FEATURED PROJECTS
NEPTUNE
Neptune is the farthest
planet from the Sun
VENUS
Venus has a beautiful
name, but it’s terribly hot

19. 80%
Big numbers catch your
audience’s attention

20. A Picture Is Worth a
Thousand Words

21. KPI DASHBOARD
Follow the link in the graph to modify its data and then paste the new one here. For more info, click here
40%
MARKET
Despite being red,
Mars is a cold place
40%
SALES
Jupiter is a gas
giant and the
biggest onE
20%
PEOPLE
Neptune is the
farthest planet

22. OUR NUMBERS
50%
MARS
Despite being red,
Mars is a cold place
35%
JUPITER
Jupiter is a gas
giant and the
biggest one
25%
VENUS
Venus has a
beautiful name
65%
NEPTUNE
Neptune is the
farthest planet

23. AWESOME
WORDS

24. STATUS REPORT
BUDGET
RISKS
ISSUES
BENEFITS
The project schedule is on track
Resourcing is adequate
Project is within budget
All project risks are under control
Project issues need to be solved
Project benefits do not meet the expectations
RESOURCING
SCHEDULE

25. RAID SUMMARY
RISK
Despite being red, Mars is a
cold place
ISSUES
Venus has a beautiful name,
but it’s terribly hot
ASSUMPTIONS
Mercury is the closest
planet to the Sun
DEPENDENCIES
Jupiter is the biggest planet
in the Solar System

26. WHERE WE ARE WHERE WE WANT TO BE
Mercury is the closest
planet to the Sun
Venus has a beautiful
name, but it’s very hot

27. BUDGET
MARS
Despite being red,
Mars is a cold place
VENUS
Venus has a
beautiful name
Follow the link in the graph to modify its data and then paste the new one here. For more info, click here

28. SNEAK PEEK
Neptune is the farthest
planet in the Solar System.
It’s the fourth-largest by
diameter and the densest

29. Despite being red,
Mars is actually a
cold place
VENUS
Venus has a
beautiful name, but
it’s terribly hot
FEB
APR
23
14
UPCOMING
EVENTS
MARS

30. Task 1
Task 2
Task 3
PLACES WHERE WE ARE

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