Description
Pigment Green-7 is a water-dispersed pigment, exceptionally lightfast, yields an intense phthalo green, and is formulated specifically for the coloring of paper pulp. It is easy to use and requires no rinsing; directions included. It has high tintorial strength and excellent fastness to solvents, heat, light, & weathering
1,2. To ensure maximum color intensity and proper adhesion to the pulp, a retention agent must be added to the pulp before the pigment is applied1. It belongs to the Phthalocyanine Green Pigment2. It is widely used in paint industry, plastic industry, textile industry, ink industries, leather industries, coating industry, paper industries, and rubber industry
2,3.
Sources
- http://carriagehousepaper.com/pigment-green-7-phthalocyanine-563
- http://www.amiorganics.co.in/pigment_green_7.html
- https://www.indiamart.com/padmavati-expochem/organic-pigment-for-coating-application.html
Chemical Properties
This product is dark green powder. Density 1.94~2.05g/cm3, insoluble in general solvents in Zhejiang Province. Bright color, strong coloring power. Dissolved in concentrated sulfuric acid is olive green, green precipitate after dilution, excellent fastness performance.
Uses
Pigment Green 7 (CAS# 1328-53-6) is an organometallic pigment used in tattoo inks and plastics.
General Description
Green powder.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Likely to behave as a weak base in aqueous solution.
Fire Hazard
Flash point data for Pigment Geen 7 are not available; Pigment Geen 7 is probably combustible.
Flammability and Explosibility
Not classified
Synthesis
Using copper phthalocyanine as raw material, in aluminum trichloride, sodium chloride composed of low-melting salt mixture medium or in chlorosulfonic acid medium, through the dry chlorine gas, at 190 to 220 for chlorination reaction; the crude phthalocyanine green obtained by o-dichlorobenzene solvent treatment or kneading pigmentation treatment, the preparation of pigment green 7..
Properties and Applications
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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GREEN POWDER
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SHADE
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YELLOWISH
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HEAT RESISTANCE
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300 °C min
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LIGHT FASTNESS
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7-8
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ACID RESISTANCE
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5
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ALKALI RESISTANCE
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5
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FASTNESS TO BLEEDING
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5
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OIL ABSORPTION
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40-45%
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SPECIFIC SURFACE
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29 m
2
/g
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DENSITY
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1.60 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
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WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
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Toxics Screening Level
The ITSL for phthalocyanine pigment green is 0.1 μg/m3 based on an annual averaging time.
