Description
Chemical Name:2,2′-Benzidinedisulfonic acid
Cas No:117-61-3
Synonyms:2,2′-Disulfo-4,4′-diaminobiphenyl;
Molecular Weight:344.36
Molecular Formula:C12H12N2O6S2
Molecular Weight:
Specification of 2 2′-Benzidinedisulfonic acid:
Items
Specifications
Melting point
175°C
Boiling point
638.25℃
Fp
/
Density
1.5417
Appearance
Lavender powder
PH
/
pKa
-1.85±0.50
Refractive Index
1.6510
Items | Specifications |
Melting point | 175°C |
Boiling point | 638.25℃ |
Fp | / |
Density | 1.5417 |
Appearance | Lavender powder |
PH | / |
pKa | -1.85±0.50 |
Refractive Index | 1.6510 |
Function of 2 2′-Benzidinedisulfonic acid:
- Hydrophilicity: The presence of sulfonic acid groups gives the compound good hydrophilicity, allowing it to dissolve well in water.
- Reactivity: The amino group (-NH₂) and sulfonic acid group in the molecule have certain reactivity and can participate in a variety of organic reactions.
Application of 2 2′-Benzidinedisulfonic acid:
- Dye intermediate: It is an important intermediate for synthesizing various acid dyes, direct dyes and reactive dyes.
- Paper strengthener: In the papermaking industry, it can interact with cellulose fibers in paper, and enhance the bonding force between fibers by forming hydrogen bonds or chemical bonds, thereby improving the strength of paper.
- Water treatment agent: It can be used as a water treatment agent to remove heavy metal ions in water.
Product Packaging and Transportation Show：
FQAs:
- Q1:What kind of packaging do the products usually come in?
A: This depends on the specific form of the product.
a1：If the product is in powder form, it is usually packed in 25kg woven bag/25kg cardboard drum, samples are usually bagged .
a2：If the product is liquid, it is usually packed in 180kg plastic drum/200kg iron drum, and the samples are usually in bottles.
a3：If customers have special requirements, please inform us in advance, we will choose the most suitable packaging according to the actual situation. - Q2:What is your shipping method?
A1：Usually, we will send small goods by FedEx, UPS and other international courier; bulk goods can be selected by sea, air or sea-land transport and other ways.
A2：If you have a designated courier or logistics channel, please be sure to inform us in advance so that we can arrange according to your requirements. - Q3: What methods can customers pay?
A: We offer a variety of payment methods, including TT transfer and credit card payment, which you can choose according to your needs. - Q4: What is your delivery time?
A: The exact delivery time will be determined according to the product category and quantity in your order. - Q5: If you have any questions or needs, please feel free to contact us, we will be happy to provide you with satisfactory service!
