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Pigment Yellow 34

Brand	Fineland Chem
Color Index	Pigment Yellow 34
Color Index No	11741
CAS No	1344-37-2
EC No	215-693-7
Chemical Group	Chrome Yellow (Lead Chromate)
Chemical Formula	PbCrO₄

Introduction

Pigment Yellow 34, also known as chrome yellow, is an inorganic pigment based on lead chromate. It provides a bright, greenish-yellow shade with excellent opacity and strong tinting strength. Historically, PY 34 was widely used in coatings, plastics, printing inks, and industrial paints due to its durability and weather resistance. However, because it contains lead compounds, its use has been significantly restricted worldwide for health and environmental reasons. Today, Pigment Yellow 34 is largely replaced by safer organic or inorganic alternatives in most applications.

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Physical Properties

Test Item	Specification
Density (g/cm3)	5.4-6.2
Specific Surface Area(m2/g)	4-9
Oil Absorption (g/100g)	16-25
PH Value	6-8
Bulk Density (lb/gal)	100-110
Total impurities(ppm)	≤600

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃)	180-220	Alkali Resistance (1-5)	3
Light Resistance (Full Shade, 1-8)	4-6	Migration Resistance(1-5)	3-4
Light (Reduced tinting, 1-8)	4-5	Ethyl Acetate (1-5)	3-5
Weather Resistance (1-5)	3	Ethanol (1-5)	3-5
Acid Resistance (1-5)	3	MEK (1-5)	3-5

Application

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