Solvent Black 7 | Oil Soluble Nigrosine CAS 8005-02-5 Powder & Liquid Dye
Overview of Solvent Black 7 (Oil Soluble Nigrosine CAS 8005-02-5)
Our high-purity Solvent Black 7, universally known as Nigrosine Black or Oil Soluble Nigrosine with CAS 8005-02-5, is a mainstream solvent soluble dye for non-aqueous coloring. We provide two mainstream specifications: solvent dye powder and oil soluble liquid dye, two standard oil soluble colour formats to match diversified production processes for global industrial buyers.
Core Product Features
As premium oil soluble dyes, this nigrosine black delivers outstanding solvent compatibility. It is fully soluble in ethanol, toluene, mineral oil and waxes yet completely insoluble in water, with no sediment or flocculation after long-term blending. The ultrafine solvent dye powder avoids agglomeration even at low stirring speed; the ready-to-use oil soluble liquid dye eliminates secondary dissolution steps, reducing production loss. It also features 180℃ heat resistance, excellent light fastness and anti-bleeding performance, keeping stable transparent blue-black shade without batch color deviation. All batches comply with international raw material inspection standards for cosmetic-grade usage.
Main Application Scenarios
This versatile solvent black covers three core downstream industries. First, as a professional textile dye, it is used for solvent dyeing of nylon, polyester and other synthetic fibers, and oil-based textile waterproof finishing coloring. Second, it acts as qualified oil soluble dyes for cosmetics, widely used in hair pomade, oily lip gloss, waterproof eyeliner paste and skin care base oil, meeting cosmetic ingredient safety requirements. Third, it serves industrial coloring needs for shoe polish, ballpoint pen ink, plastic resin, wax coating and carbon paper.
Supply & Quality Support
Every batch of CAS 8005-02-5 nigrosine black undergoes strict purity and solubility testing before delivery. We support bulk wholesale, customized OEM packaging and free sample testing for overseas distributors and manufacturers. Long-term storage will not cause fading, oxidation or color migration for finished colored products.
Post time: Jun-11-2026