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HS Code |
616467 |
| Name | Acid Yellow 7 |
| Alternative Names | Acid Yellow G, Food Yellow 3, Tartrazine |
| Cas Number | 1934-21-0 |
| Chemical Formula | C16H9N4Na3O9S2 |
| Molar Mass | 534.36 g/mol |
| Appearance | Yellow-orange powder |
| Solubility In Water | Freely soluble |
| Ph Range | 6.0-7.0 (1% solution) |
| Uses | Dye for food, textiles, paper, and cosmetics |
| Maximum Absorption Wavelength | 427 nm |
As an accredited Acid Yellow 7 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Acid Yellow 7 is packaged in a sealed, 500g HDPE bottle with a yellow hazard label and product identification details. |
| Shipping | Acid Yellow 7 should be shipped in tightly sealed containers, protected from moisture, heat, and incompatible substances. Ensure proper labeling and follow all relevant transportation regulations, including hazardous material guidelines if applicable. Use secondary containment to prevent spills, and provide safety documentation such as Safety Data Sheets (SDS) with the shipment. |
| Storage | Acid Yellow 7 should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from sources of ignition, direct sunlight, and incompatible substances such as strong oxidizers. Avoid moisture and extreme temperatures. Ensure proper labeling and prevent dust generation. Use secondary containment to avoid spills or leaks, and store away from food and drink. |
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Purity 98%: Acid Yellow 7 with 98% purity is used in textile dyeing applications, where it ensures consistent and vibrant color shade development. Aqueous Solubility: Acid Yellow 7 exhibiting high aqueous solubility is used in liquid ink formulations, where it delivers uniform dispersion and minimizes sedimentation. Lightfastness Grade 4: Acid Yellow 7 with lightfastness grade 4 is used in paper coating processes, where it improves resistance to color fading under UV exposure. pH Stability Range 2-7: Acid Yellow 7 stable at pH 2-7 is used in leather dye baths, where it maintains color integrity across variable pH conditions. Particle Size D50 1.2 µm: Acid Yellow 7 with a median particle size of 1.2 µm is used in water-based paints, where it provides smooth and homogeneous coloration. Melting Point 210°C: Acid Yellow 7 with a melting point of 210°C is used in thermoplastic polymer coloring, where it withstands high processing temperatures without degradation. Sulfonation Level 1.5 mmol/g: Acid Yellow 7 at a sulfonation level of 1.5 mmol/g is used in anionic detergent formulations, where it enhances dye solubility and compatibility. Stability Temperature up to 120°C: Acid Yellow 7 stable up to 120°C is used in hot aqueous dye processing, where it retains chromatic strength under elevated temperatures. |
Competitive Acid Yellow 7 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
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