Arylide

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Description

A class of synthetic yellow, orange and red organic colorants. These insoluble direct azo dyes were first synthesized from aniline-based diazonium salts and acetoacetarylide in 1909. Arylide was sold commercially as Hansa yellow by Hoechst AG in 1915. Arylide yellows have good tinting strength, opacity and solvent resistance. They have good lightfastness and are primarily used in printing inks, plastic, rubbers, as well as architectural and artists paints. Monoarylide yellows have better lightfastness than diarylides.

Synonyms and Related Terms

monoarylide; diarylide; azo dye; monoazo dye; Hansa yellow; colorante azoico (Esp.); colorante azoico (It.)

FTIR PY1(MFA)

PY001 sun arylide yellow 272-0008.TIF

FTIR PY3(MFA)

PY003 sun arylide yellow 272-3119.TIF

FTIR PY4(MFA)

PY4 Eljon Yellow 5G.TIF

FTIR PY62(MFA)

PY062 sun arylide yellow calcium salt 262-3562.TIF

FTIR PY65(MFA)

PY065 sun arylide yellow 272-0065.TIF

FTIR PY73(MFA)

PY073 sun arylide yellow 272-0553.TIF

FTIR PY74(MFA)

PY074 sun arylide yellow 272-4608.TIF

FTIR PY75(MFA)

PY075 sun arylide yellow 272-0075.TIF

Comparisons

Pigment number Manufacture Pigment name Manufacture CI number Comments
PY001 Sun arylide yellow 272-0008
PY003 Sun arylide yellow 272-3119
PY004 unknown eljon yellow 5g unknown
PY062 Sun arylide yellow 262-3562
PY065 Sun arylide yellow 272-0065
PY073 Sun arylide yellow 272-0553
PY074 Sun arylide yellow 272-4608 same spectrum for Kremer PY74
PY074 Kremer unspecified 23650
PY075 Sun arylide yellow 272-0075

Physical and Chemical Properties

Most arylide dyes are soluble in organic solvents. Resistant to water, oil, acids and bases. Melting Point = 150 (dec)

Risks

May bleed in paints. Decomposes at temperatures over 150 C.

Potential carcinogen.

Resources and Citations

  • B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997
  • Website: www.handprint.com

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