Iron Oxide

Red Iron Oxide
ItemIndicators
Fe2O3 Content (at105° C) in drying %( m/m)≥ 95
Volatile at 105%≤ ≤ 0.8
45um Sieve Residue% (m/n)≤ 0.3
Water Soluble Salts: (m/n)≤ 0.5
PH in extract water5-7
Oil absorption g/100g15-25
CaO content %(m/m)≤ 0.3
Colour(compared with standard)Approximate
Tinting strength(compared with standard) %≥ 95
2. Yellow Iron Oxide
Yellow Iron Oxide is widely used for color in construction, coating, ink, abrasive, paper rubber & plastic.
Yellow Iron Oxide Molecular Formula: Fe2o3H20
ItemTypeColorFE2O3Content
Oil absorption
Ml/ 100g45um Sieve Residue% (m/n)Water Soluble Salts: % (m/n)Moisture (%)PHDensity
G/CM3Type ofParticlesE compared with std. Tinting strength
PrimaryDilute by zinc oxide(1: 10)
Yellow Iron Oxide311≥ 86%25-35≤ 0.3≤ 0.5≤ 1.03/70.4-0.6acicular≤ 195-105
313≥ 86%25-35≤ 0.3≤ 0.5≤ 1.03/70.4-0.7acicular≤ 195-105



3. Chrome Green
Product name: Chrome Green
CAS No.: 1308-38-9
Molecular formula: Cr2O3
Molecular weight: 151.99
Appearance: Green powder
Specification
SpecificationStandard
Cr 2 O 3 Content % ≥ 99.0
Moisture % ≤ 0.20
Water soluble matter % ≤ 0.30
Oil absorption %15-20g/100g
Tinting strength %100+/-5
Residue on 600 mesh % ≤ 0.30
Color/Appearanceyellow dish Green powder