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chromium oxide green
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chromium oxide green

Introduction£º

Product format:
Hexagonal crystal or amorphous olive-green powder with metallic luster. Specific gravity: 5.21, Melting point: 2266¡æ25¡æ Boiling point: 4000¡æ insoluble in water or acid. Soluble in hot metallic alkaline bromate solution. Extremely stable against light, air, high temperature & corrosive gases (SO2, H2S). High covering power, magnetic properties.

Packing:
Reinforced woven bag with plastic inner.Net weight:25 or 40 kg.

N.B.:
Store in a dry place, avoid contact with moisture, acids & sunlight. Stored away from foodstuffs. 

Specifications:
 
Pigment grade
  
Alloy grade
 
Item
  
Index
 Item Index
High grade 1st grade
Cr2O3 99.00 99.00  Cr2O3 ≥99.00
Lustre standard, or as reqd Fe2O3 £¼0.030
Colouring ability 95.00 95.00  Phosphorous £¼0.001
Oil absorption 25.00 25.00 Cobalt £¼0.001
Covering power 15.00 15.00 Manganese £¼0.001
Residues above sieve % 0.50 0.50 Copper £¼0.001
Moisture % 0.30 0.50 Nickel £¼0.001
Solubles
asCr+6 5PPM
 0.05 Lead £¼0.001
Insolubles % 0.30 0.30    £¼0.001

 

 
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