Wusu, Tacheng Prefecture, Xinjiang, China sales7@sinochem-nanjing.com 3389378665@qq.com
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Direct Black 19

    • Product Name Direct Black 19
    • Mininmum Order 1 g
    • Factory Site Wusu, Tacheng Prefecture, Xinjiang, China
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    Specifications

    HS Code

    577084

    Chemical Name Direct Black 19
    Cas Number 6428-31-5
    Molecular Formula C34H28N6Na4O14S4
    Molecular Weight 960.91 g/mol
    Appearance Black powder or granules
    Solubility In Water Soluble
    Dye Class Azo dye
    Application Textile dyeing (cotton, paper, silk)
    Color Index Number C.I. 20500
    Melting Point Decomposes
    Ph Value 6-8 (1% solution)
    Light Fastness Moderate
    Storage Conditions Cool, dry place

    As an accredited Direct Black 19 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Direct Black 19 is packaged in a 25 kg woven polyethylene bag, featuring clear labeling, batch number, and hazard symbols.
    Storage Direct Black 19 should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, moisture, and incompatible substances such as strong oxidizers. The container must be tightly closed and clearly labeled. Avoid contact with skin and eyes, and prevent dust formation. Use appropriate personal protective equipment (PPE) during handling and storage to ensure safety.
    Shipping Direct Black 19 is shipped as a powder or granules in sealed, labeled, and approved containers, such as fiber drums or plastic bags, to ensure safety and prevent contamination. Packaging complies with international transport regulations, and the product is protected from moisture, heat, and direct sunlight during transit.
    Free Quote

    Competitive Direct Black 19 prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to sales7@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: sales7@sinochem-nanjing.com