Pengguna:Pomadgw/Draft
Di sini adalah draft dari suatu halaman/bagian halaman yang akan saya buat/sunting, tapi tidak ada waktu untuk menyelesaikannya. Mohon pendapatnya dengan mengirimkan kritik dan saran.'
Ini adalah tampilan sederhana dari tabel periodik unsur-unsur dan berisi nomor atom dan simbol tiap unsur. Tabel periodik unsur-unsur kimia adalah tabel yang dibuat untuk mengelompokkan unsur-unsur berdasarkan sifat-sifatnya. Walaupun sudah ada perintis tabel ini, tapi penemuan ini umumnya ditemukan oleh Dmitry Mendeleyev pada tahun 1869. Mendeleyev memaksudkan tabelnya agar dapat menggambarkan kecenderungan sifat unsur-unsur secara berulang ("periodik")
Golongan # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Period | ||||||||||||||||||||
1 | 1 H |
2 He | ||||||||||||||||||
2 | 3 Li |
4 Be |
5 B |
6 C |
7 N |
8 O |
9 F |
10 Ne | ||||||||||||
3 | 11 Na |
12 Mg |
13 Al |
14 Si |
15 P |
16 S |
17 Cl |
18 Ar | ||||||||||||
4 | 19 K |
20 Ca |
21 Sc |
22 Ti |
23 V |
24 Cr |
25 Mn |
26 Fe |
27 Co |
28 Ni |
29 Cu |
30 Zn |
31 Ga |
32 Ge |
33 As |
34 Se |
35 Br |
36 Kr | ||
5 | 37 Rb |
38 Sr |
39 Y |
40 Zr |
41 Nb |
42 Mo |
43 Tc |
44 Ru |
45 Rh |
46 Pd |
47 Ag |
48 Cd |
49 In |
50 Sn |
51 Sb |
52 Te |
53 I |
54 Xe | ||
6 | 55 Cs |
56 Ba |
72 Hf |
73 Ta |
74 W |
75 Re |
76 Os |
77 Ir |
78 Pt |
79 Au |
80 Hg |
81 Tl |
82 Pb |
83 Bi |
84 Po |
85 At |
86 Rn | |||
7 | 87 Fr |
88 Ra |
104 Rf |
105 Db |
106 Sg |
107 Bh |
108 Hs |
109 Mt |
110 Ds |
111 Rg |
112 Uub |
113 Uut |
114 Uuq |
115 Uup |
116 Uuh |
(117) (Uus) |
118 Uuo | |||
* Lantanida | 57 La |
58 Ce |
59 Pr |
60 Nd |
61 Pm |
62 Sm |
63 Eu |
64 Gd |
65 Tb |
66 Dy |
67 Ho |
68 Er |
69 Tm |
70 Yb |
71 Lu | |||||
** Aktinida | 89 Ac |
90 Th |
91 Pa |
92 U |
93 Np |
94 Pu |
95 Am |
96 Cm |
97 Bk |
98 Cf |
99 Es |
100 Fm |
101 Md |
102 No |
103 Lr |
Warna dalam tabel periodik memperlihatkan kategori unsur
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Besi(III) oksida (Bagian Penggunaan)
suntingPenyimpanan magnetik
suntingBesi(III) oksida magnetik sering digunakan dalam penyimpanan magnetik, seperti di lembaran magnetik pada floppy disk dan kaset. These consist of a thin sheet of PET film, coated with iron(III) oxide. The particles can be magnetised to represent binary data. Magnetic ink character recognition (MICR) also uses iron(III) oxide compounds, suspended in an ink which can be read by special scanning hardware.
The majority of recorded information on earth (such as text and photographs) is stored in the form of magnetization patterns on a thin layer of iron(III) oxide. This is probably because the cost per bit of iron-based magnetic media is currently far less than the cost per bit of any known alternative, such as optical discs, paper books, or microfilm. More text and photos are stored on magnetic media than all the paper books and paper photographs in the world. [butuh rujukan]
Polishing
suntingA very fine powder of ferric oxide is known as jeweller's rouge, red rouge, or simply rouge. It is used to put the final polish on metallic jewellery and lenses, and historically as a cosmetic.
Rouge cuts more slowly than some modern polishes, such as cerium(IV) oxide, but is still used in optics fabrication and by jewelers for the superior finish it can produce. When polishing gold, the rouge slightly stains the gold, which contributes to the appearance of the finished piece. Rouge is sold as a powder, paste, laced on polishing cloths, or solid bar (with a wax or grease binder). Other polishing compounds are also often called "rouge", even when they do not contain iron oxide. Jewelers remove the residual rouge on jewelry by use of ultrasonic cleaning.
Chemical
suntingBesi(III) oksida is used in the production of pure iron in a blast furnace. Besi(III) oksida juga digunakan dalam suatu reaksi eksotermik yang dinamakan reaksi termit.[1]
Pigment
suntingIron(III) oxide is also used as a pigment, under names Pigment Brown 6, Pigment Brown 7, and Pigment Red 101[2]. Some of them, e.g. Pigment Red 101 and Pigment Brown 6, are Food and Drug Administration (FDA)-approved for use in cosmetics.
Biomedical
suntingNanoparticles of iron(III) oxide are biocompatible, non-toxic, are chemically active on their surface, and some are magnetic[butuh rujukan] . They find wide use in biomedical applications. Can be used as contrast agents in magnetic resonance imaging, in labeling of cancerous tissues, magnetically controlled transport of pharmaceuticals, localized thermotherapy (where the tissue is labeled by iron oxide nanoparticles, then heated by application of AC field to particles), and preparation of ferrofluids.[3]
- ^ Adlam & Price, Higher School Certificate Inorganic Chemistry, Leslie Slater Price, 1945.
- ^ Paint and Surface Coatings: Theory and Practice William Andrew Inc. ISBN 1884207731
- ^ Kesalahan pengutipan: Tag
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