117-86-2

Basic information

• Product Name: 3-nitronaphthalene-1,5-disulphonic acid
• Synonyms: 3-nitronaphthalene-1,5-disulphonic acid;2-Nitro-4,8-naphthalenedisulfonic acid;3-Nitro-1,5-naphthalenedisulfonic acid
• CAS NO: 117-86-2
• Molecular Formula: C₁₀H₇NO₈S₂
• Molecular Weight: 333.29448
• EINECS: 204-216-8
• Mol File: 117-86-2.mol
• Article Data: 4

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.841g/cm³
• Refractive Index: 1.714
• CAS DataBase Reference: 3-nitronaphthalene-1,5-disulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3-nitronaphthalene-1,5-disulphonic acid(117-86-2)
• EPA Substance Registry System: 3-nitronaphthalene-1,5-disulphonic acid(117-86-2)

Safety Data

• Hazardous Substances Data: 117-86-2(Hazardous Substances Data)

Usage

General Description

3-Nitronaphthalene-1,5-disulphonic acid is a chemical compound with the molecular formula C10H7NO8S2. It is a derivative of naphthalene with two nitro groups and two sulfonic acid groups attached to the 1 and 5 positions of the naphthalene ring. 3-nitronaphthalene-1,5-disulphonic acid is used in the production of dyes and pigments, as well as in the synthesis of pharmaceuticals and organic compounds. It is a water-soluble compound and is often used as a dye intermediate due to its ability to react with various chemicals to produce a wide range of colors. Additionally, it is used in the manufacturing of chemicals for the agricultural and textile industries.

InChI:InChI=1/C10H7NO8S2/c12-11(13)6-4-8-7(10(5-6)21(17,18)19)2-1-3-9(8)20(14,15)16/h1-5H,(H,14,15,16)(H,17,18,19)

Upstream product

• 581-89-5 2-nitronaphthalene 
• 81-04-9 naphthalene-1,5-disulfonate 
• 91-20-3 naphthalene 

Downstream Products

• 131-27-1 3-amino-1,5-naphthalenedisulfonic acid 

Relevant articles and documents

Preparation method of clean product amino C acid

The invention relates to a preparation method of clean product amino C acid. The preparation method comprises the steps that refined naphthalene is doubly sulfonated, then 1,5-naphthalene disulfonic acid is obtained, after nitration, 3-nitronaphthalene-1,5-disulfonic acid is generated, then neutralizing is conducted through liquid caustic soda, and the amino C acid is obtained through hydrazine hydrate reduction. Compared with an original production technology, no waste residue is generated in the whole technological process, the purpose of emission reduction is achieved, and the technology issimpler, more convenient and safer and has the actual effect.

Process for the preparation of aminoarylsulphonic acids

In the process according to the invention for the preparation of aminoarylsulphonic acids by catalytic hydrogenation of nitroarylsulphonic acids, a substantial increase in the space-time yield in combination with reduced consumption of the catalyst is achieved by dispersing the hydrogen more finely and by limiting according to the invention the concentration of the nitroarylsulphonic acids to be hydrogenated.