Eriochrome Black T CAS 1787-61-7 C. I. 14645 Mordant Black 11

• Customization: Available
• CAS No.: 1787-61-7
• Formula: C20h12n3nao7s
• Model NO.: SUREST-111
• EINECS: 217-250-3
• Classification: Polycyclic Aromatic Hydrocarbons
• Shape: Powdery
• Grade Standard: Industrial Grade
• Source: Arene Separation
• Shelf Life: 2 Years
• Stock: Available
• Molecular Weight: 461.38
• Water Solubility: 50 G/L (20 ºC)
• Color: Black
• Transport Package: 25kg/Bag
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 2927000090
• Production Capacity: 1000 Tons Yearly

Product Description

Product Description

 

 

Name	Eriochrome Black T
Synonyms	C.I. 14645; 3-Hydroxy-4-(1-hydroxy-2-naphthylazo)-7-nitro-1-naphthalene sulfonic acid sodium salt; Mordant Black 11
Molecular Structure
Molecular Formula	C20H12N3NaO7S
Molecular Weight	461.38
CAS Registry Number	1787-61-7
EINECS	217-250-3

Properties

Water solubility	50 g/L (20 ºC)

 

Chemical Property/Description:

 

Black powder, soluble in water, and bordeaux to paddle red; Slightly soluble in alcohol, and brown magenta color;  It is dark blue in concentrated sulfuric acid and light reddish brown after dilution. Its aqueous solution, adding concentrated  has no great change; Add solution and turn brown to magenta. The solubility in water (90ºC) is 25g/L. When dyeing copper, iron, color light influence is greater.


 

Main Uses:

 

It is mainly used for dyeing and printing wool fabrics, can also be used for dyeing silk, nylon and other textiles, and can also be used for fur dyeing. Pure products can be used as indicators.

Used as a metal indicator for the determination of Ba2+, Mg2+, Mn2+, Zn2+ and rare earth by EDTA titration.

It is also used for spectrophotometric determination of Co2+, Mg2+, and other metal ions as color developing agents.

 

Detailed Photos

 

FAQ

 

FAQ
Question 1: Can I get samples?
Answer: Yes,you can get free samples of our most products,
while the courier cost will be borne by the buyers.

Question 2: What's your MOQ?
Answer: For a express delivery order,the MOQ is usually 100 g~1 kg;
for an air transport order or sea delivery order ,the MOQ is usually 25 kgs.

Question 3: What's your delivery time?
Answer:
Orders shipped by express delivery,the delivery time is usually 5~7 working days;
Orders shipped by air transport,usually around 7~10 working days;
Orders shipped by sea , usually around 2~3 working weeks.

Question 4: What are the different payment methods?
Answer: We usually accept T/T, L/C and Western Union.

Question 5: How do you treat quality complaint?
We take quality very seriously, it is one of the founding principles of our business.
 If the quality problem actually exists, we will replace with qualified goods or refund the money.