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Solvent blue 3R

Trade name: presol blue 3R
Product reference from abroad : Macrolex blue 3R
Chemical class
C.I. NO.
CAS NO. 
anthraquinone 
N/A
N/A
Applycation profile
PS
SAN
PC
CA
CAB 
PVC-R 
ABS
PA 
PMMA 
  ★ 
  ★ 
★= recommended ; ○= limited suitability ;  △= not recommended
Chemical and physical properties
Density [g/cm³]
Melting Point [°C]
Bulk density
Acid Resistance
1.26
167
0.46
Light fastness and heat resistance :
In GP-PS, transparent : 7 ; opaque : 6 (0.05% dyestuff+1.0% TiO2)
Generally, the values stated can also be applied to SAN, PMMA, PC and rigid PVC. For modified polystyrene, especially ABS, the fastness properties are lower.

Solubility in g/l at room temperature (23°C / 73°F)
Water
Acetone
Benzyl alcohol
Butyl acetate
Ethanol
Methylene chloride
Styrene (monomer)
Xylene
Insoluble
20
100
60
1.5
90
100
150
Heat stability:
 
PS
SB*
ABS
SAN
PMMA
PC
PET
PBT
PPO
1. °C
300
300
260-280
300
340
300
280
N/A
290
2. °C
300
300
260-280
280
300
340
300
N/A
290
1.=0.05%dyestuff
2.=0.05%dyestuff+1.0% TiO2
* Values not for styrene-butadiene block copolyme