PIGMENT ORANGE 13 – Introduction and Application

C.I. Pigment Orange 13

Structure No. 21110.

Molecular formula: C32H24CL2N8O2.

CAS number: [3520-72-7]

Structural formula

Color characterization

Pigment Orange 13 is a bright yellowish orange pigment,the shade is slightly yellower than Pigment Orange 34 and the tinting strength is also slightly stronger.Moreover,the required concentration of pigment is only 0.12% when blending with 1% of titanium dioxide to achieve 1/3 SD in HDPE.

Table 4.106 Application properties of Pigment Orange 13 in PVC

Table 4.107  Application properties of Pigment Orange 13 in HDPE

Table 4.108  Application of Pigment Orange 13

●-Recommended to use,   ○-Conditional use,   X-No recommended to use.

Varieties characteristics

The color is similar to pigment orange 34, with a translucent specific surface area of 35~40m2/ G (specific surface area of Irgalite orange D is 39m2/ G).Heat resistant (200℃), can be used for color masterbatch, plastic (structure: synthetic (from several parts into a whole) resin, plasticizer, stabilizer, color material) (Polyvinyl chloride /PE/EVA/LDPE/HDPE/PP), plastic woven wire drawing, Rubber, etc.At the same time, because the color is bright, easy to disperse and the price is relatively moderate, it is widely used in the domain of water-based printing ink, solvent (properties: transparent and colorless liquid) ink, offset printing ink, water-based printing paste and fine art pigments.
Method for the synthesis of permanent orange yellow G:3,3 ‘-dichlorobenzidine (DCB) and Acerbity (HCl) were beaten with water, and the diazotization reaction was carried out under 0~5℃ by adding rong ye, Sodium Sodium of Nitric acid.The prepared diazonium salt was added to 3-methyl-1-phenyl-5-pyrazolinone for coupling reaction at pH=9.5~10, heating to 85~90℃, filtering, washing, drying;

Countertype：

C.I. 21110
C.I. Pigment Orange 13
Benzidine orange
4,4′-[(3,3'-Dichloro[1,1'-biphenyl]-4,4′-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]
PIGMENT ORANGE 13
PYRAZOLONE ORANGE
4-dihydro-5-methyl-2-phenyl-
atulvulcanfastpigmentorangeg
benzidineorange
benzidineorange45-2850
FAST ORANGE G
Pigment Orange 13 (21110)
(4E,4′E)-4,4′-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(1E)hydrazin-2-yl-1-ylidene]bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one)
4,4′-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one)

Physico-chemical Properties
Molecular Formula C32H24Cl2N8O2
Molar Mass 623.491 g/mol
Density 1.42g/cm3
Boling Point 825.5°C at 760 mmHg
Flash Point 453.1°C
Vapor Presure 2.19E-27mmHg at 25°C
Refractive Index 1.714
Risk and Safety
Risk Codes R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38 – Irritating to eyes, respiratory system and skin.
Safety Description S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection.
Upstream Downstream Industry
Raw Materials 3,3-Dichlorobenzidine
Sodium hydroxide
Sulfonated castor oil
Sodium nitrite
Hydrochloric acid

Links to Pigment Orange 13 Specification: Plastics application.