Naphthalene-1,3,5-trisulphonic acid
- CAS NO.：6654-64-4
- Empirical Formula: C10H8O9S3
- Molecular Weight: 368.36
- MDL number: MFCD03265508
- EINECS: 229-679-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Naphthalene-1,3,5-trisulphonic acid?
Chemical properties
Naphthalene-1,3,5-trisulfonic acid [6654- 64-4]. C10H8O9S3, Mr 368.34, is extremely soluble in water; the sodium salt crystallizes as the tetrahydrate.
The Uses of Naphthalene-1,3,5-trisulphonic acid
Naphthalene-1,3,5-trisulphonic Acid is a residue found in environmental samples that is a result of the degredation of domestic and industrial use surfactants. The total reaction mixture is nitrated and the resulting 8-nitro derivative is reduced to give a mixture of 1-aminonaphthalene-3,6,8- and 4,6,8-trisulfonic acids.
Definition
ChEBI: Naphthalene-1,3,5-trisulfonic acid is a naphthalenesulfonic acid.
Production Methods
Naphthalene and 65 % oleum are added simultaneously to sulfuric acid monohydrate over a period of 32 h at 30 – 35℃. The mixture is then heated at 50℃ for 1 h, 70℃ for 1 h, and finally 90℃ for 7 h. This procedure minimizes formation of the 1,3,6-isomer, but a purer product may be obtained by using isolated naphthalene-1,5-disulfonic acid as starting material.
Properties of Naphthalene-1,3,5-trisulphonic acid
| Density | 1.919±0.06 g/cm3(Predicted) |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| pka | -0.89±0.40(Predicted) |
| color | White |
| CAS DataBase Reference | 6654-64-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3,5-Naphthalenetrisulfonic acid (6654-64-4) |
Safety information for Naphthalene-1,3,5-trisulphonic acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P310:Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for Naphthalene-1,3,5-trisulphonic acid
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![SURAMIN HEXASODIUM SALT, [3H(G)]](https://img.chemicalbook.in/StructureFile/ChemBookStructure4/GIF/CB6255888.gif)
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