XIV. DYES / PIGMENTS
i. CPC Blue
a) General Description:
Phthalocyanine Blue
Coloured Pigment (Alpha Modification, Non Solvent Stable) having
high colour strength and outstanding fastness properties found
applications in Printing
Inks,Paints, Plastics,Cosmetics, Crayons, Textile Fibres etc.
b) Physico-Chemical
Properties:
Molecular Formula : C32H16CuN8
Appearance : Fine Powder/
Aqueous Presscake
Hue : Bright Intense Reddish Blue
Specific Gravity : 160kg/m3 at 20 o C
Sieve Residue : 1.0% Max.
Moisture Content : 1.0% Max.
pH of water extract : 6 to 8
Oil Absorption : 40 G +2
Specific Conductivity
: 150 Micromhos Max.
EINECS No. : 2056851
ii. CPC Green
a) Technical specifications
Sp. Gravity : 1.5
Bulk Density : 0.40
- 0.48
Oil Absorption : 31-
35 g / 100g of pigment
pH of Aqueous Extract
: 7.00 - 8.0
Chemical Resistance
: (1-Poor- 5- Excellent)
Acid : 5
Alkali : 5
Water : 5
Heat Resistance : (1-Poor-
5- Excellent)
2100 C. for 1 min. :
5
1200 C. for 6 min. :
5
Bleeding Fastness (1-Poor-
5- Excellent)
Ethanol : 5
N-Butanol : 5
M.E.K. : 5
Xylene : 5
N C Solvent : 5
Cellulose : 5
D.O.P. : 5
Linseed Oil : 5
Light Fastness : 1-
Poor 8=Excellent
Mass Tone : 8
Tint (1:10) : 7-8
b) Applications
Plastics : PE, PVC,
Polystyrene
Paints : Aqueous Industrial
Decorative, Automotive
Inks : Aqueous, Offset,
Gravure, Screen
Other Uses : Textiles,
Paper, Detergent, Colouring, Rubber
iii. Iron Oxide Black
a) General Characteristics
Specific gravity : 5.1
Moh's Hardness : 4
pH value : 6
b) Chemical composition
Fe2O3 % by mass : 95
%
Matter soluble in water %
by mass: 0.5%
LOI : 5
c) Physical Properties
Oil absorption : 22
Bulk density : 480
Light fastness : 8
Heat resistance 0C :
500
