Is copper phthalocyanine toxic?
‘” Furthermore, EPA stated that, “…these copper phthalocyanine compounds cannot reasonably be anticipated to cause cancer, developmental toxicity, reproductive toxicity, neurotoxicity, gene mutations, or chronic toxicity.”
What is metal phthalocyanines?
Metal phthalocyanines (MPcs) are an abundant class of small molecules comprising of a highly conjugated cyclic structure with a central chelated metal ion. Due to their remarkable chemical, mechanical, and thermal stability MPcs have become popular for a multitude of applications since their discovery in 1907.
What are phthalocyanine dyes?
Phthalocyanine is an intensely blue-green-colored aromatic macrocyclic compound that is widely used in dyeing and the first phthalocyanine (Pc) was synthesized accidentally in 1907 as an unidentified blue compound when o-cyanobenzamide was heated at high temperature and that substance is currently known to be the metal …
Where does phthalocyanine come from?
In general, a crude copper phthalocyanine is produced by reacting phthalic anhydride, urea, copper/copper salt and ammonium molybdate (catalyst) in high-boiling solvent such as o-nitrotoluene, trichlorobenzene or alkyl benzenes.
What is phthalocyanine used for?
Phthalocyanines are the second most important class of colorant, and copper phthalocyanine is the single largest-volume colorant sold. Traditional uses of phthalocyanine colorants are as blue and green pigments for automotive paints and printing inks and as blue/cyan dyes for textiles and paper.
Is phthalocyanine toxic?
Toxicity and hazards No evidence has been reported for acute toxicity or carcinogenicity of phthalocyanine compounds.
Is phthalocyanine blue toxic?
Harmful if inhaled or swallowed. Danger in cumulative effects. Copper: Phthalo Blue & Green. Harmful if inhaled or swallowed.
Is Phthalo blue the same as phthalocyanine blue?
Phthalo blue in its purest form. Phthalo blue (or Phthalocyanine Blue BN) is an organic blue developed by chemists under the trade name “monastral blue”. The color was presented as a pigment in London in November 1935.
Is Phthalo poisonous?
Copper: Phthalo Blue & Green. Harmful if inhaled or swallowed. Nickel. Cumulative exposure leads to poisoning and nerve damage.
What is a substitute for Phthalo blue?
Ultramarine is the best alternative because that color is also a transparent pigment with a good tinting strength. Cobalt is transparent but has a weak tinting strength, and cerulean blue is only semitransparent, also with a weak tinting strength.
Which paint is the most toxic?
A Look at Some of History’s Most Toxic Colors
- Can you paint with all the colors of history? No, because a lot of them are just too toxic.
- Orpiment.
- Realgar.
- Lead White.
- Vermilion.
- Naples Yellow.
- Scheele’s Green.
- Emerald Green.
Is Phthalo Blue and phthalocyanine blue the same color?
Winsor Blue is made of an organic synthetic pigment, copper phthalocyanine. Alternative names are phthalo blue, monastral and intense blue.