Starwin Chrome Yellow - Pigment Yellow 34

产品概览

Pigment Yellow 34, commonly known as Chrome Yellow, is a high-performance inorganic pigment belonging to the lead sulfochromate family (PbCrO₄). It is produced by precipitation and controlled calcination processes, delivering a range of shades from lemon yellow to deep orange-yellow. Chrome Yellow is characterized by high opacity, excellent tinting strength, brilliant color, and good light fastness.

Starwin Chrome Yellow is the commercial-grade Pigment Yellow 34 supplied by Hangzhou Starwin Tech Co., Ltd. With more than 15 years of experience in inorganic pigment production, Starwin delivers consistent tinting strength, stable hue, and reliable batch-to-batch reproducibility for demanding industrial applications.

Key Identification

Property	Value
Product Name (EN)	Chrome Yellow, Lead Sulfochromate Yellow
商号	Starwin Chrome Yellow
C.I. Name	颜料黄 34
客户编号	77600
CAS 编号	1344-37-2
Molecular Formula	PbCrO₄ (lead sulfochromate)
化学类别	Inorganic / Lead Chromate
外观	Yellow to orange-yellow powder
Color Shades	Lemon, Light, Medium, Deep, Orange

Technical Specifications

The following data represents typical performance properties of Starwin Chrome Yellow. Actual values may vary by grade — please refer to the Certificate of Analysis (COA) for each shipment.

Parameter	规格
Lead Chromate Content	≥ 85% (up to 94.2% for encapsulated grades)
含水量	≤ 0.5%
吸油	15 – 25 g/100g
Specific Gravity	5.4 – 6.0 g/cm³
堆积密度	0.80 – 1.20 g/cm³
105°C下的挥发分	≤ 0.5%
Soluble Matter in Water	≤ 0.5%
pH Value	5.0 – 8.0
Tinting Strength (vs. Standard)	95 – 105%
耐光性	4 – 5 (Blue Wool Scale)
Water Fastness	5 (excellent)
耐热性	160 – 200°C (encapsulated up to 220°C)
包装	25 kg/bag with inner PE liner
存储	Cool, dry, ventilated area, away from direct sunlight
HS 编码	32061900

How to Interpret These Specifications

• Lead Chromate Content (≥ 85%): Higher lead chromate content indicates higher pigment purity and color strength. Encapsulated grades can reach 94.2% lead chromate content while offering improved heat and chemical resistance.
• Heat Resistance (160–220°C): Standard grades withstand 160–200°C. Encapsulated grades can be used in plastics processing up to 220°C.
• 吸油值（15–25 g/100g）: Lower oil absorption indicates lower binder demand and higher pigment loading capacity, making chrome pigments cost-effective in formulation.
• Light Fastness (4–5): Moderate to good. Chrome pigments are suitable for interior applications and semi-durable exterior applications.

Shade Range

Shade	Description	Primary Applications
Lemon Chrome	Greenish-yellow, lightest shade	Industrial coatings, inks
Light Chrome	Pale yellow	Industrial coatings, plastics
Medium Chrome	Standard yellow	Road marking, industrial coatings
Deep Chrome	Orange-yellow	Construction machinery, industrial coatings
Orange Chrome	Deep orange	Road marking, construction coatings

封装成绩

Starwin offers encapsulated (coated) grades of Chrome Yellow. These grades feature a dense amorphous coating (typically silica, alumina, or organic treatment) deposited on the pigment particle surface to improve:

• Heat resistance: Up to 220°C for plastic processing
• Chemical resistance: Improved stability against acids, alkalis, and sulfur
• Light fastness: Enhanced UV stability for exterior applications
• 色散： Improved dispersibility in solvent-based and water-based systems

Encapsulated grades are recommended for applications requiring higher performance than standard grades, including plastics, powder coatings, and automotive refinish systems.

关键应用领域

1. Industrial Coatings

• Road Marking Paints: Extensively used for its high visibility, durability, and cost-effectiveness. Provides excellent opacity and weather resistance for traffic paints.
• Construction Machinery Coatings: Used in heavy-duty equipment coatings requiring high opacity and bright color.
• Industrial Finishes: Used in general industrial coatings for machinery, metal furniture, and structural steel.

2. Plastics

• PVC and Polyolefins:适用于 PVC、PE 和 PP，需具备高达 220°C 的热稳定性（封装级）。
• Masterbatch: Used in color masterbatch for plastics, providing high opacity and bright color.
• Engineering Plastics:包封级填料适用于在较高温度下加工的特定工程塑料。

3. Printing Inks

• Offset Inks: Used in sheetfed and web offset inks for yellow tones.
• Packaging Inks: Used in solvent-based and water-based packaging inks.

Competitive Grade Equivalents

Starwin Grade	BASF Equivalent	DCC Equivalent	Primary Application
Lemon Chrome	L1922 / L1625	1034 / 1019	Industrial coatings, inks
Light Chrome	L1925 / L1422	1032 / 608	Industrial coatings, plastics
Medium Chrome	L1622 / L1522	1003 / 602	Road marking, industrial coatings
Deep Chrome	L3035S / L3025	5606 / 5612	Construction machinery
Orange Chrome	L3125 / L3130S	1606 / 1607	Road marking, construction
Encapsulated Lemon	L3230S / L2922	—	Plastics, powder coatings
Encapsulated Medium	L3022	—	Plastics, automotive refinish

监管状态

Lead chromate pigments are subject to significant regulatory restrictions worldwide:

• REACH Annex XIV: PY34 is included in the Authorisation List. Since May 21, 2015, use without approved authorisation is prohibited in the EU.
• RoHS 指令： Lead restricted to < 0.1% in electrical and electronic equipment.
• Not approved for food contact or cosmetic applications.

Customers must verify compliance with local regulations before use. Consider heavy-metal-free alternatives such as Bismuth Vanadate (PY184) or Diarylide Yellow (PY12/13/14) where applicable.

Packaging & Storage

• 包装： 25 kg/bag with inner PE liner. 25 kg fiber drum available. Bulk super sacks available upon request.
• Storage: Store in a cool, dry, well-ventilated area away from direct sunlight and moisture. Keep container tightly closed when not in use.
• 交通： Handle with care to avoid dust generation. Follow local regulations for lead compound transportation.

Frequently Asked Questions (FAQ)

What are the main advantages of Chrome Yellow?

Chrome Yellow offers high opacity, excellent tinting strength, brilliant color, and good light fastness at a lower cost compared to organic pigments and heavy-metal-free alternatives like Bismuth Vanadate. They remain 50–80% less expensive per kilogram than Bismuth Vanadate, making them cost-effective for industrial applications where regulatory restrictions permit their use.

Can Starwin Chrome Yellow directly replace BASF L-series or DCC grades?

In most cases, yes — with proper testing. The Competitive Grade Equivalents table maps Starwin grades to equivalent products from BASF, DCC, and other international suppliers. We recommend requesting samples and conducting comparative testing for your specific formulation.

What are the alternatives to Chrome Yellow?

Heavy-metal-free alternatives include Bismuth Vanadate (PY184) for high-performance yellow, and Diarylide Yellow (PY12/13/14) for inks and coatings with lower cost but lower opacity and heat resistance.

是否提供样品、COA 和 SDS？

是的，杭州星赢科技有限公司提供样品供评估，每批货物均附带COA和SDS。

Why Choose Hangzhou Starwin Tech Co., Ltd. as Your Chrome Yellow Supplier?

• 15+ Years Experience: Deep expertise in inorganic pigment production with consistent quality control.
• Complete Shade Range: Lemon to Orange Chrome available in standard and encapsulated grades.
• Competitive Grade Matching: Grades engineered to match BASF L-series, DCC, and other international brands.
• Encapsulated Grades Available: Improved heat resistance, chemical resistance, and light fastness for demanding applications.
• 技术支持： Grade selection, shade matching, competitive matching, and application-specific troubleshooting.
• 可靠供应：拥有服务亚洲、欧洲及美洲客户的丰富经验。

Contact Us

杭州星威科技有限公司

关于技术数据表（TDS）、安全数据表（SDS）、样品或价格咨询，Starwin Chrome Yellow (Pigment Yellow 34, CAS 1344-37-2)，请联系我们的团队。

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