The most cost-effective Acid Nigrosine100% Black granule used on leather
Product Specification
| Name | Acid Nigrosine |
| Other Names | Acid Black 2 |
| CAS No. | 8005-03-6 |
| STRENGTH | 100% |
| APPEARANCE | Black Granule |
| APPLICATION | Used for dyeing silk, wool, leather, paper, nylon and so on. |
| PACKING | 25KGS PP Bags/Kraft Bag/Carton Box/Iron Drum |
Description
Acid Nigrosine（Acid Black 2）We can provide Black Granule. the intensity is divided into the 100 color light of the standard,Acid Nigrosine（Acid Black 2）Black Granule. Soluble in water, the water solution is blue and black, adding concentrated hydrochloric acid to produce green light blue precipitation; Sodium hydroxide solution is added to produce a blue precipitate. Soluble in ethanol, blue, slightly soluble in acetone, insoluble in other organic solvents. Dark green solution in concentrated nitric acid and then change to sauce red; Blue precipitate is produced in 10% sodium hydroxide solution. When dyeing, the color changes slightly in case of copper ion; Iron ion color slightly light green.
Product character
Acid Nigrosine（Acid Black 2）Black Granule. Soluble in water, the water solution is blue and black, adding concentrated hydrochloric acid to produce green light blue precipitation; Sodium hydroxide solution is added to produce a blue precipitate. Soluble in ethanol, blue, slightly soluble in acetone, insoluble in other organic solvents.,Our professional engineering group will always be ready to serve you for consultation and feedback. We are able to also offer you with absolutely free samples to meet your requirements. Finest efforts will likely be produced to give you the ideal service and goods. For anyone who is thinking about our company and merchandise, please contact us by sending us emails or contact us quickly. As a way to know our merchandise and firm. lot more, you can come to our factory to find out it. We'll always welcome guests from all over the world to our business to build company relations with us. Please feel free to get in touch with us for business and we believe we are going to share the top trading practical experience with all our merchants.
Application
Acid Nigrosine（Acid Black 2）It is mainly used for the dyeing of wool and silk, but also for the dyeing of leather (usually through chromium dye), as well as the coloring of paper, wood products, soap, electrolytic aluminum and the manufacture of ink.
Packing
25KGS PP Bags/Kraft Bag/Carton Box/Iron Drum
Storage & Transportation
Acid Nigrosine（Acid Black 2）must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.
