Chromium
Oxide Green pigment called chrome oxide green. there have
numerous preparation of chrome oxide process. but basically has three sorts: by
chromium hydroxide preparation technique of chrome oxide green, ammonium
sulfate sodium chromate salt decomposition technique, Chromium Oxide Green
direct decomposition method.
The thermal decomposition of ammonium sulfate
sodium chromate salt, is the United states of america, Britain, Germany as well
as other nations and also the basic methods of production of chrome oxide
green, has turn out to be the largest output in preparing chrome oxide green,
best quality, most varieties of production techniques. its advantage is
relatively easy production procedure, cost reduce than that of chromic acid
decomposition method, wide adaptability, started in the rotating mass
production. the production procedure of fundamental doesn't produce harmful
gas. chromic acid decomposition technique quick in current years . with the
consciousness of Chromium Oxide Green.
chromic anhydride in 1999 made chrome oxide production twice about chromium.
The physical properties of chrome oxide green.
chrome oxide green with metallic luster. color is light green to dark green.
magnetism,covering power is strong, high temperature resistant, weather
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 solution, soluble in hot or
boiling sodium bromate solution of sulfur phosphorus mixed acid, good paint
quality and fastness.
Chromium
Oxide Green can be utilized for smelting metal chromium and
chromium for making stainless steel, auto components , tools, tapes and videos.
chromium cross the rust on metal at the same time, strong and stunning.
utilized for enamel, glass industry,developing supplies. particularly for the
production of ceramic pigment, bright colour products.
At house and abroad, because the international
economic recovery, building supplies, coating paint, plastic, ink as well as
other industries within the rapid development, the demand of inorganic pigment
also increase rapidly. with the fast improvement of coating business, as 1 of
the primary raw material for inorganic pigment obtained rapid improvement.
enhance the level of atmosphere security of inorganic pigment, utilizing has
got widely recognized industry enterprises, environmental protection inorganic
pigment development path from the trend of the times.
没有评论:
发表评论