Pigment

Phthalocyanine (PC) pigments constitute a broad class of pigments. PC Blue and PC green are among the most important organic pigments.

Copper phthalocyanine blue is the copper (II) complex of tetra aza tetra benzoporphine (CPC) whereas Phthalocyanine green is its chlorinated derivative (Pigment green 7). The brominated derivative of CPC provide a yellowish green shade(Pigment green 36).

The specific crystal modification decide the hue of the product as in Alpha blue - red shade copper Phthalocyanine (Pigment Blue 15) and in Beta blue - green shade blue (Pigment Blue 15:3). The Alpha modification which is phase stabilised by partial chlorination called solvent stable alpha blue or Pigment Blue15:1.

The Alpha modification which is stabilised towards flocculation and the phase change are registered as Pigment Blue 15:2. These pigments find use in paints.

The details of the individual class of pigments together with its application is given separately.

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.

Physico-Chemical Properties

Fastness to Reagents (On 1 to 5 scale)

Heat Fastness (in Paint) : on 1 to 5 scale :

At 200 ^o C /30 min. : 5

Fastness to Light (on 1 to 8 scale) :

Full shade : 8
1:40 reduction : 8

Industrial Applications

Any Special grade material eg. Food Packaging grade or low electrical conductivity grade material can be supplied, confirming to the Customers' specifications.

A reddish Phthalocyanine in Alpha form and solvent stable with high colour strength and all round outstanding fastness properties.

Physico-Chemical Properties :

Molecular Formula C32H16CuN8 Appearance Fine Powder/ Aqueous Presscake Hue Bright Intense Reddish Blue Specific Gravity 158kg/m3 at 20 o C Sieve Residue 0.5% Max. Moisture Content 0.5% Max. pH of water extract 6 to 8 Specific Conductivity 150 MICROMHOS Max. Einecs No. 2056851

Acid 5 Alkali 5

Water 5 Ethyl Acetate 3-4 MEK 3-4 Ethanol 4 Xylene 3-4 Mineral Turpentine 5

Paints and Coatings Air Drying Enamel paint Powder Coatings Printing Inks (All types ) Offset and Letterpress Ink Vinyl System Maleic System NC/PA System Plastics LDPE / HDPE & PE PVC & PVC Leather

Ribament Blue AQX

Molecular Formula C32H16CuN8 Appearance Fine Powder/ Aqueous Presscake Hue Bright Intense Reddish Blue Specific Gravity 156kg/m3 at 20 o C Sieve Residue 1.0% Max. Moisture Content 1.0% Max. pH of water extract 6 to 8 Specific Conductivity 150 MICROMHOS Max. Einecs No. 2056851