Cobalt blue
| In this item, we explain the pigment. For color, please read "". — | —
|This article is not shown at all or insufficient. Please cooperate in improving the reliability of the article. (December 2016) — | —
Cobalt blue(: cobalt blue) is inorganic of. Formarinealso called cobalt blue, see.
nature
Cobalt blue is also known as a very stable pigment excellent in light resistance, weather resistance, acid resistance, and alkali resistance, also called****. Color Index The Generic Name is Pigment Blue 28.
The composition formula is expressed by CoAl 2 O 4 (cobalt aluminate) or CoO · Al 2 O 3 (with).
There are several manufacturing methods,
- Coprecipitate
- Combine cobalt oxide and aluminum hydroxide and firing at 900 - 1000 ° C
- Ferrite with aluminum hydroxide at a high temperature of about 1200 ° C
And the like.
It shows relatively vivid blue, the higher the proportion of cobalt is, the thicker it becomes, and the higher the proportion of aluminum, the lighter the pigment. It is expensive to be used for coloring of and and, but in the paint, in some cases further pigments are blended to make an inexpensive substitute (cobalt blue Tint, cobalt blue hue, cobalt blue tone) are manufactured.
Related item
*
Acquired from ""
Post Date : 2018-02-09 18:00
This article is taken from the Japanese Wikipedia Cobalt blue
This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.
In addition, This site is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.
0 개의 댓글:
댓글 쓰기