Hangzhou Leap Chem Co., Ltd. is one of the most professional manufacturers and suppliers of 1,5-naphthalenedisulfonic acid tetrahydrate丨cas 211366-30-2 in China. Welcome to wholesale bulk high quality chemical products at competitive price from our factory. If you have any enquiry about custom service, please feel free to email us.
Specifications
| Appearance: | Off-White crystal powder |
| Purity (HPLC): | 98.0% min |
| Fe: | 40 ppm max |
| Water-insoluble: | 0.2% max |
| Ash: | 0.1% max |
| Water: | 25% max |
Transport Information
|
Parameter |
Specification |
|
UN Number |
2585 |
|
Class |
8 |
|
Packing Group |
III |
|
H.S. Code |
2904100000 |
|
Stability & Reactivity |
The product is chemically stable under standard ambient conditions. |
|
Storage |
Keep container tightly closed in a dry and well-ventilated place. |
|
Condition to Avoid |
|
|
Package |
Applications
1,5-Naphthalenedisulfonic acid tetrahydrate is a sulfonated aromatic compound widely used in dye, pigment, and chemical synthesis industries. It serves as an intermediate for the production of azo dyes, fluorescent brighteners, and optical brightening agents due to its highly water-soluble sulfonic acid groups, which improve dye solubility and affinity for fibers. In polymer and resin chemistry, it is employed as a dispersing and sulfonating agent to enhance stability, wettability, and ionic interaction of materials. The compound is also used in analytical chemistry as a reagent for titration, complex formation, and pH buffering applications, taking advantage of its strong acidity and solubility.
Benefits
The compound provides high water solubility and strong acidity, which make it an effective dispersant, sulfonating, and stabilizing agent in various chemical processes. Its aromatic disulfonic structure enhances reactivity and allows selective derivatization for the synthesis of dyes, fluorescent compounds, and polymers. The tetrahydrate form improves handling and reproducibility in aqueous solutions, ensuring consistent performance in industrial and laboratory applications. Additionally, its thermal and chemical stability allows it to maintain functionality under demanding process conditions.
Conclusion
1,5-Naphthalenedisulfonic acid tetrahydrate is a versatile intermediate for the dye, pigment, polymer, and analytical chemistry sectors. Its dual sulfonic groups, high solubility, and chemical stability make it essential for producing water-soluble dyes, dispersants, and functionalized materials, supporting efficient, high-performance industrial and research applications.
