chrome yellow

Thân thiện

A painter mixes chrome yellow on her palette to brighten the sky.

Definition

Noun: 1. A yellow pigment: Chrome yellow is any of several yellow pigments whose primary component is lead chromate (PbCrO₄). It is known for its bright, opaque yellow hue. 2. A specific chemical compound: More broadly, it refers to pigments made from normal lead chromate and other related lead compounds, used primarily for coloring paints and coatings.

Usage Examples

• Noun:
  • The artist's palette included a vibrant chrome yellow for the sunflowers.
  • Due to safety concerns, the use of chrome yellow in consumer paints has declined.
  • The vintage car was painted in a classic chrome yellow.

Advanced Usage

• Historical and Industrial Context: Chrome yellow was historically a very important pigment in the 19th and early-to-mid 20th centuries, used by famous artists and in industrial applications. Its usage is now restricted in many countries because the lead and hexavalent chromium it contains are toxic.
• Technical Specification: The exact shade of chrome yellow can vary from a lemon yellow to a deep orange-yellow, depending on the crystal structure and the presence of other lead compounds like lead sulfate.

Variants and Related Words

• Chrome orange (n): A related pigment, also based on lead chromate, which produces an orange hue.
• Lead chromate (n): The primary chemical compound (PbCrO₄) that constitutes chrome yellow pigment.

Synonyms

• Lead chromate yellow
• Paris yellow (an older name)
• Leipzig yellow (an older name)

Notes on Meaning

The term "chrome yellow" specifically denotes a pigment (a coloring material), not the color itself. While it describes a family of yellow shades, its core meaning is tied to its chemical composition. In modern usage, especially in health and safety contexts, it is strongly associated with its toxic components.

Học thuật

Noun

1. any of several yellow pigments consisting of normal lead chromate and other lead compounds