Pigment Yellow 34DISCONTINUED

Basic Information

View in Editor

CAS Number

1344-37-2

Molecular Formula

Cr2H2O14PbS2

Molecular Weight

601.33 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Boiling Point

157

Density

1.73 (20 C)

Flash Point

SMILES

View in Editor

[O-][Cr](=O)(=O)OS(=O)(=O)O.[O-][Cr](=O)(=O)OS(=O)(=O)O.[Pb+2]

InChI

1S/Cr.4O.Pb/q;;;2*-1;+2

InChIKey

MOUPNEIJQCETIW-UHFFFAOYSA-N

LogP

-0.85600

Complexity

62.5

Safety Information

View Safety Information

Hazard Class

Class 6.1(b) Class 6.1(b)

Synonyms & References

English

lead sulfochromate yellow
Pigment Yellow 34
C.I. 77603
Lead chromate
LIGHT CHROME YELLOW
C.I. PIGMENT YELLOW 34
MEDIUM CHROME YELLOW
lead(2+),tetraoxido(oxo)chromium
PIGMENT YELLOW 34, C.I.77603
c 103
Blue15-4
C.I.14085
c.i. 77600
KROLORYELLOW
PRIMROSEYELLOW
CHROME YELLOW 34

FAQ

What are the physical and chemical properties of Pigment Yellow 34 (CAS: 1344-37-2)?

Pigment Yellow 34 (CAS: 1344-37-2) is a stable, light-fast, and air-sensitive synthetic organic pigment. It has a molecular weight of approximately 1,458 g/mol and is moderately soluble in organic solvents. It shows low reactivity with most organic compounds but is susceptible to oxidation and hydrolysis under certain conditions.

How is Pigment Yellow 34 (CAS: 1344-37-2) typically synthesized?

Pigment Yellow 34 (CAS: 1344-37-2) is synthesized through a condensation reaction involving a naphthol derivative and a ketone, typically using a sulfuric acid catalyst. The process yields a high molecular weight polymer which is then precipitated and purified to obtain the pigment. This method ensures a high selectivity and yield, with the final product being a stable, yellow-colored pigment.

What industries use Pigment Yellow 34 (CAS: 1344-37-2)?

Pigment Yellow 34 (CAS: 1344-37-2) is widely used in the printing ink, paint, and plastic industries. It is also employed in coatings, adhesives, and as a colorant in textile manufacturing. Additionally, it is used in some pharmaceutical formulations and pigments for polymers and plastics.

What precautions should be taken when handling Pigment Yellow 34 (CAS: 1344-37-2)?

When handling Pigment Yellow 34 (CAS: 1344-37-2), ensure that appropriate personal protective equipment (PPE) is worn, including gloves, goggles, and a lab coat. Work in a well-ventilated area or a fume hood to avoid inhalation. Store the pigment in a cool, dry place, away from direct sunlight. In the event of a spill, immediately clean up using appropriate absorbent materials and dispose of according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling instructions and emergency procedures.