Chromium
Oxide Green pigment called chrome oxide green. there have
many preparation of chrome oxide procedure. but basically has three kinds: by
chromium hydroxide preparation technique of chrome oxide green, ammonium
sulfate sodium chromate salt decomposition method, Chromium Oxide Green
direct decomposition method.
The thermal decomposition of ammonium sulfate
sodium chromate salt, will be the United states of america, Britain, Germany as
well as other countries and the fundamental techniques of production of chrome
oxide green, has turn out to be the largest output in preparing chrome oxide
green, very best quality, most varieties of production methods. its benefit is
relatively simple production process, price reduce than that of chromic acid
decomposition technique, wide adaptability, started in the rotating mass
production. the production procedure of basic does not produce harmful gas.
chromic acid decomposition technique fast in recent 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. colour is light green to dark green.
magnetism,covering power is powerful, higher temperature resistant, climate
resistant, insolube in water, in the atmosphere is steady. superb
weatherability, meet thermal stability, melting point 2265 degrees celsius, the
boiling point of 3000 degrees celsius, is of top quality refractory supplies.
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 answer of sulfur phosphorus mixed acid, great paint
quality and fastness.
Chromium
Oxide Green can be used for smelting metal chromium and
chromium for creating stainless steel, auto components , tools, tapes and
videos. chromium cross the rust on metal simultaneously, strong and beautiful.
used for enamel, glass industry,developing supplies. particularly for the
production of ceramic pigment, vibrant colour products.
At house and abroad, as the international
economic recovery, building materials, coating paint, plastic, ink and other
industries in the rapid growth, the demand of inorganic pigment also increase
rapidly. with the rapid improvement of coating industry, as one from the
primary raw material for inorganic pigment obtained fast improvement. enhance
the level of atmosphere security of inorganic pigment, utilizing has got
extensively recognized industry enterprises, environmental protection inorganic
pigment improvement path from the trend from the occasions.
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