Chrome Oxide Green

We are offering chrome oxide green.product description
chrome oxide green
1) cr203 molecular 151.99
dark green hexagonal crystal - caricom or amorphous powder, a metallic sheen. 5.21/cm3 density. 2266 ° c melting point.
boiling point 4000 ° c do not dissolve in water and acid can be dissolved in hot alkali metal bromate solution. Light, air, high temperature and corrosive gases stability. Hiding strong. Magnetic.
2) mainly used in the pigment of paint, glass, pottery and porcelain, porcelain enamel, cement, used in polishing metal, producing pigment, carbuncle, printing bank paper, also used as catalyzer of organic synthesis.
item
best quality first quality
cr2o3), content% 99.0 98.0 99.0 99.0
water content,% 0.15 0.30 0.15 0.15
content of insoluble substance in water,% 0.1 0.4 0.2 0.2
ph 6-8 5-8 no regulation no regulation
oil absorption ,g/100g 1.5-2.5 1.5-2.5 2.0 2.0
cast satisfactory satisfactory no regulation no regulation
relative colouring power ,% satisfactory satisfactory no regulation no regulation
sieve residue ,%,45um 0.1 0.3 0.3 0.5
- - - 5ppm