Chromium
Oxide Green pigment known as chrome oxide green. there have
numerous preparation of chrome oxide procedure. but basically has three sorts:
by chromium hydroxide preparation technique of chrome oxide green, ammonium
sulfate sodium chromate salt decomposition method, Chromium Oxide Green
direct decomposition technique.
The thermal decomposition of ammonium sulfate
sodium chromate salt, is the United states, Britain, Germany and other nations
and the basic methods of production of chrome oxide green, has turn out to be
the biggest output in preparing chrome oxide green, best quality, most
varieties of production methods. its benefit is relatively simple production
process, cost reduce than that of chromic acid decomposition technique, wide
adaptability, started in the rotating mass production. the production process
of basic doesn't create harmful gas. chromic acid decomposition technique quick
in recent years . with the consciousness of Chromium Oxide Green.
chromic anhydride in 1999 produced chrome oxide production twice about chromium.
The physical properties of chrome oxide green.
chrome oxide green with metallic luster. colour is light green to dark green.
magnetism,covering energy is powerful, higher temperature resistant, climate
resistant, insolube in water, in the atmosphere is stable. excellent
weatherability, meet thermal stability, melting point 2265 degrees celsius, the
boiling point of 3000 degrees celsius, is of high quality refractory materials.
chrome oxide green chemistry, insoluble in water, acid and organic solvents,
slightly soluble in concentrated sodium hydroxide answer, soluble in hot or
boiling sodium bromate solution of sulfur phosphorus mixed acid, great paint
quality and fastness.
Chromium
Oxide Green may be used for smelting metal chromium and
chromium for creating stainless steel, auto parts , tools, tapes and videos.
chromium cross the rust on metal simultaneously, strong and beautiful. used for
enamel, glass industry,developing materials. especially for the production of
ceramic pigment, bright color products.
At home and abroad, as the global financial
recovery, developing materials, coating paint, plastic, ink and other
industries in the fast growth, the demand of inorganic pigment also improve quickly.
with the fast development of coating industry, as one from the main raw
material for inorganic pigment obtained rapid improvement. improve the level of
environment security of inorganic pigment, using has got extensively recognized
business enterprises, environmental protection inorganic pigment improvement
path from the trend from the occasions.
没有评论:
发表评论