| Customization: | Available |
|---|---|
| CAS No.: | 121-57-3 |
| Formula: | C6h7no3s |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Basic Information
Product Name:Sulfanilic acid, 4-Aminobenzenesulfonic acid
CAS Number: 121-57-3
Chemical Formula: C6H7NO3S
Molecular Weight: 173.19
Appearance: It is a white to off - white crystalline powder.
Melting Point: >300ºC (decomposition)
Solubility: It is slightly soluble in cold water, readily soluble in hot water, and insoluble in organic solvents such as ethanol, ether, and benzene. It is acidic in aqueous solution and can dissolve in sodium hydroxide solution and sodium carbonate solution.
Application Areas
Dye Industry: It is an important intermediate for the synthesis of various dyes, such as acid dyes, direct dyes, and reactive dyes. Through a series of chemical reactions, it can be converted into dye molecules with different colors and properties, which are widely used in the dyeing processes of the textile and leather industries.
Pharmaceutical Industry: It is used in the manufacture of sulfonamide drugs, such as sulfadiazine and sulfamethoxazole. These sulfonamide drugs have antibacterial and anti - inflammatory effects and play an important role in the pharmaceutical field. They can be used to treat a variety of bacterial infectious diseases.
Pesticide Industry: It participates in the synthesis of some pesticides as an intermediate, such as the synthesis of certain sulfonylurea herbicides. These herbicides have the characteristics of high efficiency, low toxicity, and strong selectivity, which can effectively control the growth of weeds in farmland and improve the yield and quality of crops.
Other Fields: It can also be used as an analytical reagent for the determination of elements such as aluminum, magnesium, potassium, sodium, and iodine. In the electroplating industry, it can be used as an additive in the electroplating solution to improve the quality and performance of the electroplated layer. In the paper industry, it helps to improve the strength and whiteness of paper.
Production Method
Usually, it is prepared by the sulfonation of aniline. Aniline is added to concentrated sulfuric acid, and the sulfonation reaction is carried out at a certain temperature. After the reaction is completed, the crude p - Aminobenzenesulfonic acid is obtained through processes such as cooling, crystallization, filtration, and washing. Then, through further purification treatments such as recrystallization, high - purity p - Aminobenzenesulfonic acid products can be obtained.
Packaging, Storage, Transportation and Safety
Packaging: Generally, it is packed in woven bags or paper bags with inner plastic bags, with a net weight of 25kg or 50kg per bag to prevent the product from getting wet and contaminated.
Storage and Transportation: It should be stored in a cool, dry, and well - ventilated warehouse, away from fire and heat sources. Avoid mixing it with oxidants, acids, alkalis, and other substances. During transportation, it is necessary to prevent rain and moisture, and ensure that the packaging is intact.
Safety: p - Aminobenzenesulfonic acid itself has low toxicity, but during production and use, it is necessary to avoid dust inhalation and skin contact. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical attention in a timely manner. At the same time, pay attention to fire and explosion prevention.
| Liquid products | Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
| Solid products | Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.
){kind=link}