Dye Sulphur Black 1326-82-5 Sulphur Black 1

Details:

Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,  

Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.  

Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization,  Keep moving!  

Product Name: Sulfur black BR , Sulphur black BR , Sulphur Black 1

Molecular formula: C6H4N2O5

Quality standard: GB/T25808-2010

CAS No.:1326-82-5

 

Application: 

  Sulfur black is insoluble in water and ethanol. It has good solubility in sodium sulfide solution and is green and black. Add sodium hydroxide to sodium sulfide aqueous solution to make the color blue; Add hydrochloric acid until there is green light and black precipitation in sodium sulfide solution; It is partially dissolved in cold concentrated sulfuric acid, heated to dark green light blue, and further heated to black blue; Black blue in 25% fuming sulfuric acid; There is green light and black precipitation after dilution; The dye is yellow olive in alkaline sodium hydrosulfite solution, and can restore its original color after oxidation; It will fade completely in sodium hypochlorite solution, and it will not be affected by adding  concentrated sulfuric acid.

  Sulfur black is a common dye for black dyeing of cotton, hemp, viscose fibers and their fabrics. The dye uptake and levelness are good. Sulphur black dyes have good dyeing strength and light fastness. It is also used for dyeing leather and paper. 

 

Specification:

Product name	Sulphur black BR 240%
Quality standard	GB/T25808-2010
Appearance	Flashing black flakes or granules
Strength	240% according to customer request
Moisture content	Max 6%
Insoluble substance in sodium sulfide	Max 0.5%

 

Fastness on Cotton fabric:

Fastness	Grade
Light fastness(Xenon Arc, 8%owf)	6
Washing fastness(95ºC)	3(fading); 3~4(cotton staining); 4~5(viscose staining)
Water fastness	4(fading);4~5(cotton staining); 4~5(wool staining)
Perspiration fastness(alkaline)	4(fading);4~5(cotton staining); 4~5(wool staining)
Perspiration fastness(acid)	4(fading);4~5(cotton staining); 4~5(wool staining)
Iron fastness(200°C after 4h fading)	4 grade
Rubbing fastness	2~3(dry); 1~2(wet)

 

Storage: It shall be stored in a cool, dry and ventilated place to prevent moisture and heat. The shelf life is one year.

 

Packaging & Shipping :
1.Standard export packaging. There are usually fiber drums, kraft bags, or cartons. We can also pack them according to customers' requirements. 

2.EMS,DHL, TNT, UPS ,FEDEX, BY AIR, BY SEA

DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service; 

Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;

For high value products, please select air shipping and DHL express for safe;

Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.


FAQ: 
1.Are you a trade company or factory   
We are a  factory with our own trading company.  

2.How do you control the quality   
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   

3.How long is lead time   
We deliver goods within 3 days for small order, 7-10 days for bulk order.   

4. Where is your factory located  How can I visit the factory   
 Our factory located in HEBEI, China.
5.Can i get some samples  
  Yes, we can supply free sample, but the shipping cost be paid by our customers. 
6.How to start orders or make payments  
  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,  

7. How to confirm the Product Quality before placing orders  
  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. 
8. How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.

9. How do you treat quality complaint
  First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.