Direct Violet 51

Powder properties

Direct Violet 51 powder is Blue purple. For the red light purple is soluble in water, soluble in soluble fiber element, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid dyes in dark green for blue-ray, diluted into blue; In nitric acid for blue-ray in green, to dark brown. The dye solution to join strong hydrochloric acid into blue, precipitation; Add thick sodium hydroxide solution to purple, have precipitation. 60 ℃ the solubility of 15 when g/L, 97 ℃ the solubility of 25 g when/L, not sensitive to that fights. For blue light purple, dyeing encounter copper, iron ion colored light are a little red. For A class SDC classification. To dead cotton covered the gender is poorer, cotton and glue neutral white are 4 ~ 5 level, cotton white alkaline for 4 ~ 5 level, viscose alkaline white into four grades.

Shade:Blue purple powder.

Liquid properties

Direct Violet 51 (liquid) is a ready-to-use aqueous direct dye formulated to deliver clear, deep violet shades with excellent leveling on cotton, viscose and cellulosic blends. Designed for modern textile operations, DV51 offers reduced migration and tight shade reproducibility from lab to production.

Unlike conventional powder dyes, Direct violet 51 liquid dispersion improves dosing accuracy, eliminates dust hazards and simplifies integration with automated metering systems. Built-in anti-migration and leveling components reduce the risk of bleeding and streaking—helping mills reduce rework and achieve consistent quality across large production lots.

Related Name: 

C.I. Direct Violet 51 (7CI);C.I. Direct Violet 51,disodium salt (8CI);Sirius Violet BB (6CI);Amanil Fast Violet BL;AtlanticFast Violet FFB;Azine Light Violet BB;Benzanil Fast Violet 2BL;Benzo ViscoseViolet BL;Chloramine Brilliant Fast Violet 3B;Chrome LeatherViolet BL;Cotton Violet BB;Diazol Light Violet B;Diphenyl Brilliant VioletB;Diphenyl Brilliant Violet RC;Direct Fast Violet BL;

What sets Direct Violet 51 apart

• Process stability: Formulated for reproducible shades across pad, rope and exhaust dyeing processes.
• Reduced handling risk: Liquid form eliminates common powder handling issues and cross-contamination.
• Flexible recipes: Compatible with many direct dye auxiliaries; supports low-salt options in selected processes.

Technical Specifications

• ‍Product Name: Direct Violet 51
• C.I. No.: 27905
• Molecular Formula: C32H27N5Na2O8S2

• Molecular Weight: 719.7‍

Liquid light fastness and solubility

Package

Standard packaging: 25 kg kraft drums (powder), 25–200 L drums or IBCs (liquid). Custom packing and export documentation available on request.

Handling, storage & safety

Use appropriate PPE (gloves, goggles) when handling. Avoid eye and prolonged skin contact. In case of eye contact, rinse thoroughly with water and seek medical attention if necessary. Dispose of contents and containers according to local regulations. See SDS for full guidance.

Storage

Store in original containers, tightly closed, between 5–30°C. Protect from frost and direct sunlight. Shelf-life unopened: typically 12 months under recommended conditions.

Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.