Pigment Red 57:1

Synonym(s):3-Hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthoic acid calcium salt

CAS NO.：5281-04-9
Empirical Formula: C18H16CaN2O6S
Molecular Weight: 428.47
MDL number: MFCD00059529
EINECS: 226-109-5
SAFETY DATA SHEET (SDS)
Update Date: 2025-01-27 09:38:02

What is Pigment Red 57:1?

Characteristics

C.I. Pigment Red 57:1,15850:1 (Lithol Rubine) is one of the most important organic pigments and an important printing ink pigment.It has a brilliant shade that corresponds to the standard “magenta”shade of the European scale for multicolor, letterpress, and offset printing, as well as high tinting strength, good lightfastness, and solvent resistance.

The Uses of Pigment Red 57:1

Pigment Red 57:1 is one of the most important organic pigments and an important printing ink pigment.
It is used in almost all printing ink sectors (in letterpress and offset printing, and in illustration and packaging gravure printing) for several reasons. It has a brilliant shade that corresponds to the standard “magenta” shade of the European scale for multicolor, letterpress, and offset printing, as well as high tinting strength, good lightfastness, and solvent resistance.

Flammability and Explosibility

Not classified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	RED POWDER
SHADE	BLUISH
HEAT RESISTANCE	180 °C min
LIGHT FASTNESS	6
ACID RESISTANCE	5
ALKALI RESISTANCE	4
FASTNESS TO BLEEDING	5
OIL ABSORPTION	45-50%
SPECIFIC SURFACE	28 m ² /g
DENSITY	1.60 g/cm ³
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %

Properties of Pigment Red 57:1

Density	0.352-1.7[at 20℃]
vapor pressure	0Pa at 25℃
form	powder to crystal
Colour Index	15850
color	Red to Dark red to Brown
Water Solubility	8.9mg/L at 25℃
CAS DataBase Reference	5281-04-9(CAS DataBase Reference)
EPA Substance Registry System	C.I. Pigment Red 57, calcium salt (1:1) (5281-04-9)

Safety information for Pigment Red 57:1

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H317:Sensitisation, Skin
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P501:Dispose of contents/container to..…