Post on 29-Nov-2014
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Company LOGO
KELOMPOK LIMA
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Company LOGO
TUGAS KELOMPOK
PEMBUATAN KOLOID
LOGO PEMBUATAN DISPERSI KOLOID MEMILIKI DUA CARA YAITU:
Cara Dispersi Cara Kondensasi
LOGO 1. Cara Dispersi
Prinsip cara ini adalah pemecahan partikel berukuran besar menjadi berukuran kecil (sesuai ukuran partikel koloid).
Cara dispersi dapat dilakukan dengan proses kimia maupun proses fisika.
LOGOa. Peptisasi (Proses Kimia)
Peptisasi adalah suatu cara pembuatan koloid dengan penambahan elektrolit ke dalam suatu endapan. Elektrolit yang digunakan disebut peptisator.
LOGO Contoh Peptisasi (Proses Kimia)
Endapan AgCl dapat diubah menjadi sol dengan menambahkan HCl.
Endapan Fe(OH)3 dapat di ubah menjadi sol dengan menambahkan FeCl3.
Endapan Cds dapat diubah menjadi sol dengan menambahkan H2S.
LOGOb. Pemintal Koloid (Proses Fisika)
Terdiri atas 2 pelat baja yang berdekatan , berputar dengan arh berlawanan, dan berkecepatan tinggi.
Caranya; Partikel padat dihamcurka menjadi ukuran koloid, kemudian terdispersi dalam cairan membentuk sol, misalnya koloid grafit (sebagai pelumas) dan tinta cat dibuat dengan cara ini.
LOGO c. Cara Bredig (Proses Fisika)
Dengan menggunakan 2 kawat logam Yang diberi tegangan tinggi saling didekatkan dalam air dan yang akan terjadi panas yang dapat menguapkan logam yang selanjutnya uang logam megalami kondensasi membentuk partikel koloid.
Cara ini digunakan untuk membuat sol dari logam Ag, Au, dan Pt.
LOGO 2. CARA KONDENSASI.
Merupakan kebalikan dari cara dispersi, yaitu penggabungan molekul-molekul kecil menjadi partikel yang besar.
Cara ini dilakukan dengan reaksi kimia atau penggubahan pelarutnya
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b. Oksidasi
c. Reduksi
d. Reaksi Penetralan
e. Pengubahan Pelarut
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a. Hidrolisis
Macam-macam cara kondensasi yaitu:
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a.OKSIDASI
Sol belerang dengan melewatkan H2S ke dalam larutan SO2
2H2S + SO2 = 2H2O + 3S
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FeCl3 + 3 H2O = Fe(OH)3 + HCL
Sol hidrosida besi, krom, dan aluminium dapat dibuat dengan hidrolisis garamnya.
.
Untuk Membuat sol Fe(OH)3, dapat dilakukan dengan cara menambahkan FeCl3 30%
b,. HIDROLISIS
LOGO
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1. Describe contents for a Chart Description of the company’s sub contents
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LOGO
www.themegallery.com
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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LOGO
www.themegallery.com
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Description of the contents
Description of the contents
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ThemeGallery is a Design Digital Content
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LOGO
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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www.themegallery.com
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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LOGO
www.themegallery.com
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LOGO
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LOGO
www.themegallery.com
ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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LOGO
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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LOGO
www.themegallery.com
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LOGO
www.themegallery.com
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Contents of the product, and please fill it out.
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Please write down about details of introducing your company.(Vision, duties, and customer service of company)
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Company LOGO
LOGO
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
America Europe Asia
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LOGO
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ThemeGallery is a Design Digital
Content & Contents mall
developed by Guild Design Inc.
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2.Description of the company’s sub contents
Describe a vision of company or strategic contents
1.Description of the company’s sub contents
ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
3.Description of the company’s sub contents
LOGO
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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Description of the contents Description of the contents
Describe a vision of company or strategic contents.
• Description of the company’s products
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• Description of the company’s business
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• Description of the company’s contents
ThemeGallery is a Design Digital Content & Contents mall developed by
Guild Design Inc.
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.
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LOGO
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