Chromium

From Conservapedia
Chromium
Properties
Atomic symbol Cr
Atomic number 24
Classification Transition metal
Atomic mass 52.0 amu
Other Information
Date of discovery 1797
Name of discoverer Louis Vauquelin
Name origin From the Greek word chrôma (color)
Uses Stainless steel
Obtained from Chromite

Chromium (Cr) is a chemical element found at number 24 on the periodic table. It is a hard, lustrous gray transition metal used in plating processes and the production of stainless steel.

Chromium is generally found in nature in the mineral chromite (FeO - Cr2O3), but can also be found in crocoite (PbCrO4). It is also an essential mineral for life; a deficiency will lead to a reduction in glucose tolerance, as several chromium (III) compounds have been found to enhance the effectiveness of insulin. However, some chromates are hazardous to one's health when ingested/inhaled.

Contents

  • 1 Uses
    • 1.1 Commercial
    • 1.2 Medical
  • 2 References

Uses[edit]

Commercial[edit]

Chromium is used in a number of products, including cassette tapes, metal polish (green rouge), colored pigments and dyes, jet engines, and gas turbines. Silverware is sometimes also coated with chromium, since it is resistant to corrosion Perhaps most importantly, stainless steel is at least ten percent chromium. Stainless steel is used in many different products, including cutlery, stoves, gutters, roofing, cars, and much more.

Medical[edit]

Along with vanadium, chromium is one of the minerals which is believed to help control blood sugar. It is sometimes used for diabetes in place of animal insulin injections.[1] However, there has been no official study to discover how much vanadium is required by the human body, so many conventional doctors avoid suggesting this supplementation.[2] Chromium picolinate or chromium oxide are usually used for supplementation—the former being considered more effective.

References[edit]

  1. ↑ http://www.whale.to/a/diabetes_shame.html
  2. ↑ http://umm.edu/health/medical/altmed/supplement/vanadium
Periodic Table of the Elements
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
H
1.008
2
He
4.003
3
Li
6.939
4
Be
9.0122
5
B
10.811
6
C
12.011
7
N
14.007
8
O
15.999
9
F
18.998
10
Ne
10.183
11
Na
22.99
12
Mg
24.312
13
Al
26.982
14
Si
28.086
15
P
30.974
16
S
32.064
17
Cl
35.453
18
Ar
39.948
19
K
39.102
20
Ca
40.08
21
Sc
44.956
22
Ti
47.9
23
V
50.942
24
Cr
51.996
25
Mn
54.938
26
Fe
55.847
27
Co
58.933
28
Ni
58.71
29
Cu
63.546
30
Zn
65.37
31
Ga
69.72
32
Ge
72.59
33
As
74.922
34
Se
78.96
35
Br
79.904
36
Kr
83.8
37
Rb
85.47
38
Sr
87.62
39
Y
88.905
40
Zr
91.22
41
Nb
92.906
42
Mo
95.94
43
Tc
[97]
44
Ru
101.07
45
Rh
102.91
46
Pd
106.4
47
Ag
107.87
48
Cd
112.4
49
In
114.82
50
Sn
118.69
51
Sb
121.75
52
Te
127.6
53
I
126.9
54
Xe
131.3
55
Cs
132.91
56
Ba
137.34
57*
La
138.91
72
Hf
178.49
73
Ta
180.95
74
W
183.85
75
Re
186.2
76
Os
190.2
77
Ir
192.2
78
Pt
195.09
79
Au
196.97
80
Hg
200.59
81
Tl
204.37
82
Pb
207.19
83
Bi
208.98
84
Po
210
85
At
210
86
Rn
222
87
Fr
215
88
Ra
226.03
89**
Ac
227.03
104
Rf
[261]
105
Db
[262]
106
Sg
[266]
107
Bh
[264]
108
Hs
[265]
109
Mt
[268]
110
Dt
[271]
111
Rg
[272]
112
Cn
[277]
113
Nh
[284]
114
Fv
[289]
115
Mc
[288]
116
Lv
[292]
117
Ts
[293]
118
Og
[294]
 
*Lanthanides
58
Ce
140.12
59
Pr
140.91
60
Nd
144.24
61
Pm
145
62
Sm
150.35
63
Eu
151.96
64
Gd
157.25
65
Tb
158.92
66
Dy
162.5
67
Ho
164.93
68
Er
167.26
69
Tm
168.93
70
Yb
173.04
71
Lu
174.97
 
**Actinides
90
Th
232.04
91
Pa
231
92
U
238.03
93
Np
237.05
94
Pu
239.05
95
Am
241.06
96
Cm
244.06
97
Bk
249.08
98
Cf
252.08
99
Es
252.08
100
Fm
257.1
101
Md
258.1
102
No
259.1
103
Lr
262.11
 

Categories: [Metals]

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