Phthalocyanine green, also known as Pigment Green 7 or PG7, is a synthetic green pigment derived from phthalocyanine blue. It is one of the most widely used green pigments due to its excellent properties.
Chemical Formula: C32H3Cl15CuN8
Molecular Weight: 1029.78 g/mol
Appearance: Bright green crystalline powder
ද්‍රාව්‍යතාව: ජලයේ දිය නොවන සහ බොහෝ කාබනික ද්‍රාවක
Synthesis
Phthalocyanine green is synthesized by chlorinating copper phthalocyanine (phthalocyanine blue). This process introduces chlorine atoms into the molecule, resulting in the green hue.
Paints and Coatings: Extensively used in decorative paints, industrial coatings, and automotive finishes due to its vibrant color and durability.
Printing Inks: Widely used in various printing processes, including gravure, flexography, and screen printing, due to its excellent dispersion and stability.
Plastics: Used to color plastics and polymers because of its resistance to heat and chemicals.
රෙදිපිළි: ඉහළ වේගවත් ගුණාංග ලබා දෙමින් රෙදි සායම් කිරීම සහ මුද්‍රණය කිරීමෙහි නියුක්ත වේ.
Cosmetics: Used in certain cosmetic formulations that require green pigments.
Artists’ Colors: Preferred by artists for its bright, stable green hue in oil, acrylic, and watercolor paints.
ඉහළ ටින්ටින් ශක්තිය: අවම වර්ණකයක් සහිත ශක්තිමත් වර්ණ ලබා දෙයි.
Lightfastness: Highly resistant to fading when exposed to light.
රසායනික ස්ථායිතාව: අම්ල, ක්ෂාර සහ ද්‍රාවක වලට ප්‍රතිරෝධී වන අතර එය විවිධ යෙදුම් සඳහා සුදුසු වේ.
විෂ නොවන: සාමාන්‍යයෙන් පාරිභෝගික නිෂ්පාදනවල භාවිතය සඳහා ආරක්ෂිත යැයි සැලකේ.
පාරිසරික සහ ආරක්ෂාව පිළිබඳ සලකා බැලීම්
Phthalocyanine green is considered non-toxic and environmentally benign. However, standard safety precautions should be followed to avoid inhalation or prolonged skin contact, which could cause irritation.
Phthalocyanine green was developed after the success of phthalocyanine blue in the mid-20th century. The introduction of chlorine atoms to the phthalocyanine structure provided a new, stable green pigment with superior properties compared to earlier green pigments.
In summary, phthalocyanine green is a highly versatile and durable pigment used in a wide range of applications, offering excellent performance characteristics and safety.
