C.I. Pigment Red 4 mainly used in printing ink, paint, watercolor, paint and inkpad color, also can be used for rubber, natural raw lacquer, cosmetics, paint and coating printing color. Yellow red powder, bright color. Insoluble in water, slightly soluble in ethanol, acetone and benzene. In concentrated sulfuric acid to blue light magenta, dilution after yellow red precipitation; In concentrated nitric acid for brilliant scarlet; In a dilute sodium hydroxide solution does not change color; In the ethanol – potassium hydroxide solution for purple. Liquidity and cover resistance, good heat resistance is poor.
MedKoo Cat#: 581243
Name: C.I. Pigment Red 4
CAS#: 2814-77-9
Chemical Formula: C16H10ClN3O3
Exact Mass: 327.0411
Molecular Weight: 327.72
Elemental Analysis: C, 58.64; H, 3.08; Cl, 10.82; N, 12.82; O, 14.65
The following data is based on the product molecular weight 327.72 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
