PIGMENT YELLOW 168/ HP YELLOW 1332
:
Technical Information
C.I.NO.: PY168
Advantage:
Main Application Recommended: Plastics
Product Description – PY168
HP YELLOW 1332 (PIGMENT YELLOW 168) is a calcium pigment lake, it provides a clean, somewhat greenish yellow shade, it exhibits good fastness to aliphatic and cromatic hydrocarbones. excellent acid and alkali resistant, very good migration resisance in plasticized PVC, it is mainly used in LDPE.
Recommended Application：
Plastics: PP, PE, PVC, PS/SAN, ABS, POM, PET, Rubber/TPV, TPO
Technical Data:
| Product Information | ||||
|---|---|---|---|---|
| Chemical Type | Azo | CAS NO. | 71832-85-4 | |
| C. I. Name | Pigment Yellow 168 | EINECS / ELINCS NO. | 276-057-2 | |
| C. I. Constitution No. | 13960 | Chemical Formula | C16H12ClN4O7S1/2Ca | |
| Technical Performance | ||||
|---|---|---|---|---|
| Full Shade | Tint | |||
| Full Shade | Tint | |||
| Weather Resistance | 5 | 4~5 | Heat Stability °C | 220°C |
| Light Fastness | 7 | 6~7 | ||
| Physical Properties | ||||
|---|---|---|---|---|
| Physical Form | Powder | Resistance to Acid | 5 | |
| Specific Density (g/cm3): | 1.85 ± 0.1 | Resistance to Alkali | 5 | |
| Specific Surface(㎡/g): | 0.40 ± 0.1 | Migration resistance PVC | 5 | |
| Oil Absorption | 38 ± 10 | Low warping applications | Not Suitable | |
| pH Value | 4 – 7 | |||
| Volatile Matter | 1% max | |||
| Packaging | ||||
|---|---|---|---|---|
| 25kgs/bag 400kgs/Pallet | ||||
| Storage Shelf Life 5 years | ||||
| Should be stored in cool, dry and ventilate place. |
| TRANSPORTATION | ||||
|---|---|---|---|---|
| Avoid inversion, sunlight, moisture and crash. Avoid damage the package. |
- Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
- Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
- Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
- Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”
Disclaimer — This Technical Data Sheet reflects our best understanding of typical product properties at the time of publication. Listed values are representative of standard production and are not intended as specifications, contractual parameters, or fitness guarantees. Batch variations within normal manufacturing tolerances may occur; users should verify critical parameters against their own requirements before use. Processing methods, formulations, and end-use environments are beyond the manufacturer’s control. The buyer assumes full responsibility for confirming product suitability through its own testing and quality assurance. No intellectual property license is granted or implied. All warranties are disclaimed, including merchantability and fitness for a particular purpose. The manufacturer is not liable for incidental, consequential, or special damages. All sales are governed by the manufacturer’s standard terms, available upon request. This product may contain particles below 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.
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Frequently Asked Questions — PIGMENT YELLOW 168
What is the primary application of PIGMENT YELLOW 168 (CAS 71832-85-0) in plastics?
PIGMENT YELLOW 168 (PY168, CAS 71832-85-0) is recommended primarily for plastics, particularly LDPE, PP, PE, PVC, PS/SAN, ABS, POM, PET, and Rubber/TPV. It is a calcium pigment lake providing a clean, greenish-yellow shade. It offers excellent acid and alkali resistance, very good migration resistance in plasticized PVC, and good fastness to aliphatic and aromatic hydrocarbons. This makes it suitable for masterbatch and colored plastic articles requiring durable, non-migrating color.
How does PIGMENT YELLOW 168 perform in terms of heat stability and light fastness?
PIGMENT YELLOW 168 (PY168, CAS 71832-85-0) delivers reliable heat stability up to 200°C, ensuring consistent color during LDPE and PP processing. Light fastness rating is good for indoor plastic applications. These performance parameters, along with its migration resistance in plasticized PVC, are key for producers of colored plastics requiring balance of processability and end-use durability.
Is PIGMENT YELLOW 168 resistant to acids, alkalis, and solvents?
Yes, PIGMENT YELLOW 168 (CAS 71832-85-0) exhibits excellent resistance to both acids and alkalis. It also shows good fastness to aliphatic and aromatic hydrocarbons, making it suitable for plastics exposed to chemical environments. This property profile supports reliable color retention in PVC compounds and other plasticized systems where chemical exposure is a concern.
What specific physical properties are available for PIGMENT YELLOW 168 (CAS 71832-85-0)?
PIGMENT YELLOW 168 (PY168) has specific density of 1.6 g/cm³ and specific surface area of 15-25 m²/g. It is supplied as a fine powder. The chemical formula is C16H12ClN4O7S1/2Ca. These physical characteristics influence dispersion behavior and color strength in plastics masterbatch formulations.
Can PIGMENT YELLOW 168 be used in polyolefin masterbatch without migration issues?
Yes, PIGMENT YELLOW 168 (CAS 71832-85-0) offers very good migration resistance in plasticized PVC, which translates to reliable performance in LDPE and other polyolefins. Its calcium lake structure contributes to low migration, making it a preferred choice for colored plastic articles where bleeding or staining must be avoided. It is ideal for applications such as packaging, toys, and household goods.