Molecular Formula: C24H20N4O
Molecular Weight: 380.44
CAS Registry Number: 85-83-6
Manufacturing Methods: 2-Methyl-4-(o-tolyldiazenyl)benzenaminediazotization, and Naphthalen-2-ol coupling.
Properties and Applications: red to blue light red. Red powder, resistance to 5% of hydrochloric acid and sodium carbonate solution. Insoluble in water, soluble in ethanol and acetone, soluble in benzene. In concentrated sulfuric acid to blue light green, dilution have red precipitation. Mainly used in acetate fiber, organic glass, ABS resin, rigid polyvinyl chloride (PVC) and so on the many kinds of plastic coloring, and can also be used to paint and ballpoint ink color, also can be used for polyester fiber colouring.
Standard |
Light Fastness |
Heat-resistant (℃) |
water |
Sodium Carbonate (5%) |
Hydrochloric acid (5%) |
|
Melting point |
Stable |
|||||
ISO |
Good |
184-185 |
120 |
Insoluble |
No change |
No change |
Other names:
Solvent Red 2B, Solvent Red 380, Transparent Red BR, Oil Red 2B, Oil Red BR
Performance & Applications:
Product name |
Color Index no. |
Chemical type |
Color tone |
Melting point℃ |
Bulk density (g/ml/) |
Fastness Specification |
|||
Concentration of coloring |
PS |
||||||||
Dyes |
TiO2 |
Light fastness |
Heat fastness |
||||||
/% |
/% |
(℃/5min) |
|||||||
Solvent red 2B |
Solvent Red 24 |
Double azo class |
Bluish |
185 |
0.333 |
0.05 |
1 |
4-5 |
280 |
Applications |
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PS |
HIPS |
ABS |
PC |
RPVC |
PMMA |
SAN |
AS |
PA6 |
PET |
★ |
○ |
○ |
△ |
★ |
★ |
○ |
△ |
— |
— |
★ Suitable ○ Suitable with restrictions △ Not recommended - Not Test
Note: The above technical data is only used for reference.The application, use and process of the products provided by our company, are not controlled by our company,we hope that the user should test the goods before mass use to verify whether Suitable for the process and use of your products.