professional supplier sale High Quality Eriochrome Black T CAS 1787-61-7

1. Basic information

English name: Eriochrome Black T、Acid Chrome Black T、Mordant Black T

Molecular formula: C ₂₀ H ₁₂ N 3 NaO ₇ S

Molecular weight: 461.38

EINECS number: 217-250-3

2. Physical and chemical properties

Appearance: Black brown powder.

Solubility: soluble in water with a jujube red color, slightly soluble in ethanol and acetone. Brownish purple precipitate in excess hydrochloric acid; It appears blue in concentrated sulfuric acid and forms a light red brown precipitate after dilution; Red orange color in concentrated nitric acid; Ethanol solution appears brownish red in color; It appears orange red in sodium hydroxide.

PH value: 3.7 (10g/L, H ₂ O, 20 ° C)

Absorption wavelength: The maximum absorption wavelength is 503nm.

3. Purpose

Dyeing field: Belonging to monoazo naphthol dyes, mainly used for dyeing wool fabrics and also for dyeing nylon.

In the field of analytical chemistry, it is a commonly used metal ion indicator, especially suitable for titration of calcium and magnesium ions in water.

4. Safety information

Hazard statement: Serious irritant to eyes, toxic to aquatic organisms, and may have long-term adverse effects on the aquatic environment.

Warning word: Warning

Safety measures: Suitable protective goggles, gloves, etc. should be worn during operation to avoid contact with eyes and skin and prevent dust inhalation; If there is eye contact, immediately rinse with plenty of water and seek medical attention; During use, substances should be avoided from entering the aquatic environment.

What are the preparation methods for sharing chrome black T? What are the indicators similar to chrome black T in the dye industry for titration of calcium and magnesium ions in water?

Packaging Details: 25 kg/bag or as your requirement.
Port: Tianjin/ Qingdao/ Shanghai, etc.
We can ship the samples by air.
Lead Time: Within 2~3days Shipment after receiving the advance payment or original L/C.

XI'AN YI HANG CHEMICAL CO.,LTD was founded in 2002, located in xian City, shannxi, China. We are the high-tech chemical enterprise which specialized in researching, manufacturing and trading for chemical raw materials ,our products widely used in paints, textile, rubber, leather, plastic and so on.

With many years development and operation,we have become the group company for chemical production,we have the owned factory for produce stable quality products with high performance, and the advanced lab to ensure the best quality of each batch products.

We have our strictly quality control in our production, and we have passed ISO9001:2015 Quality Management System Certification and ISO14001 Environment Management System Certification.

Our main products includes Titanium Dioxide, Lithopone, Iron Oxide series, Chrome Oxide Green, Zinc Oxide, Carbon Black, STPP, SHMP, Oxalic Acid, DOP, SLES, and so on.

Q1: Are you manufacturer or trading company?

A1:Manufacturer.

Q2: Can I get some sample?
A2: Yes, usually 10-25g sample for free.

Q3: Is there a discount?
A3: Of course, welcome to contact us. Price would be different based on different quantity. For bulk
quantity, we will have discount for you.

Q4: How long for production and delivery?
A4: Most products we have in stock, sent time:Within 1-3 business days after received payment. Customized products further discussed.

Q5: Do you accept ODM or OEM service?
A5: Yes,we accept ODM and OEM services, ranges: Soft gel, Capsule, Tablet, Sachet, Granule,Private Label service, etc. Please contact us to design your own brand product.

Q6: How to deliver the goods?
A6: ≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.

Q7: How to start orders or make payments?
A7:There are two ways for you to confirm order:
1. Proforma invoice with our company bank details will be sent to you once the order confirmed by Email. Pls arrange payment by TT. Goods will be sent after received payment within 1-3 business days.
2. Trade assurance order will be drafted for you through ALIBABA. Pls confirm and pay through Alibaba. Goods will be sent after received payment within 1-3 business days.