Yellow Pigment

🔹 Categories of Yellow Pigments

Type Description
Organic Yellow Pigments Bright, vivid shades with good dispersion and high tint strength
Inorganic Yellow Pigments Duller but offer excellent heat, weather, and light resistance

🔹 Common Organic Yellow Pigments

Pigment Name C.I. Number Shade Features & Uses
Pigment Yellow 1 C.I. 11680 Greenish Yellow Monoazo, good for inks, low-cost paints
Pigment Yellow 3 C.I. 11710 Lemon Yellow Monoazo, bright and economical
Pigment Yellow 12 C.I. 21090 Golden Yellow Diarylide, strong tint, used in plastics & inks
Pigment Yellow 13 C.I. 21100 Reddish Yellow Diarylide, more weather resistant
Pigment Yellow 74 C.I. 11741 Medium Yellow Azo, good lightfastness, universal usage

🔹 Common Inorganic Yellow Pigments

Pigment Name C.I. Number Shade Description
Chrome Yellow C.I. 77600 Reddish Yellow Lead chromate – bright, but toxic and restricted
Bismuth Vanadate (PY 184) C.I. 771740 Lemon Yellow Non-toxic, excellent durability, high-end coatings
Iron Oxide Yellow C.I. 77492 Earthy Yellow Very durable, used in construction & masonry
Cadmium Yellow C.I. 77202 Bright Yellow Toxic, excellent opacity and lightfastness (now restricted)

🔹 Key Properties to Consider

Property Organic Pigments Inorganic Pigments
Color Brightness Very bright Moderate to bright (PY184)
Lightfastness Moderate to Excellent Excellent
Heat Resistance Moderate (150–200°C typically) Excellent (up to 800°C+)
Cost Generally lower Higher (e.g., Bismuth Vanadate)
Toxicity Mostly non-toxic (modern grades) Some may contain Pb or Cd
Category:

🔹 Applications

Industry Common Uses
Paints & Coatings Emulsion paints, automotive, powder coatings
Plastics PP, PE, PVC, ABS, PET colorants
Printing Inks Flexo, gravure, offset inks
Construction Colored cement, tiles, concrete
Textiles Pigment printing on fabrics
Cosmetics & Soaps Soap colorants (non-toxic types only)

🔹 Selection Tip

If you need:

  • High brightness and low cost → Try PY12, PY3, or PY74

  • UV/weather resistance → Use PY13 (diarylide) or PY184 (Bismuth Vanadate)

  • Eco-friendly option → Avoid chrome/cadmium; prefer iron oxide or bismuth vanadate

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