Naphtalene-1,3,6-trisulfonic Acid
- CAS No.
- 86-66-8
- Chemical Name:
- Naphtalene-1,3,6-trisulfonic Acid
- Synonyms
- 2,5,7-Naphthalenetrisulfonic acid;naphthalene-1,3,6-trisulphonic acid
- CBNumber:
- CB8875761
- Molecular Formula:
- C10H8O9S3
- Molecular Weight:
- 368.36
- MOL File:
- 86-66-8.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/10/30 17:15:29
| Density | 1.919±0.06 g/cm3(Predicted) |
|---|---|
| pka | -0.76±0.40(Predicted) |
| EPA Substance Registry System | 1,3,6-Naphthalenetrisulfonic acid (86-66-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|---|---|
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P310-P260-P280 |
| HS Code | 2904100090 |
Naphtalene-1,3,6-trisulfonic Acid Chemical Properties,Uses,Production
Uses
The total reaction mixture is nitrated, and the resulting 8-nitro derivative is reduced to give 1-aminonaphthalene-3,6,8-trisulfonic acid (Koch acid), the key intermediate in the production of the important H acid. The crude trisodium salt may be precipitated from the quenched mixture after dilution to 75 % acid strength to give a product (Azoguard) used as a diazo stabilizer.
Production Methods
Naphthalene is initially sulfonated with sulfuric acid monohydrate under programmed temperature control between 80 and 145℃. Then, 65 % oleum is added gradually at 40℃ and heating is continued for 2.5 h at 145℃. Trisulfonation is complete after the further addition of 65 % oleum and heating for 3 h at 150℃. This complex procedure maximizes the formation of Naphtalene-1,3,6-trisulfonic Acid with a conversion of up to 75 %.
Naphtalene-1,3,6-trisulfonic Acid Preparation Products And Raw materials
Naphtalene-1,3,6-trisulfonic Acid Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
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| Amadis Chemical Company Limited | 571-89925085 | China | 131980 | 58 | Inquiry |
| Aikon International Limited | 025-66113011 13155353615 | China | 15396 | 58 | Inquiry |
| Yangzhou modier Electronic Materials Co., Ltd | 0514-82098883; 13761402923 | China | 882 | 58 | Inquiry |
| Baoji Didu Pharmaceutical and Chemical Co., Ltd | 029-61856358 15829046862 | China | 10011 | 58 | Inquiry |
| Anyang Hongmeng New Materials Co., Ltd | 19588588067 19588588067 | China | 11485 | 58 | Inquiry |
| Shanghai Honghao Chemicals Co., Ltd | 86-021-50321622 | China | 30 | 39 | Inquiry |
| APAC Pharmaceutical, LLC | +1(410) 997 5552 | United States | 6332 | 38 | Inquiry |
| Service Chemical Inc. | 888-895-6920 | Germany | 6373 | 71 | Inquiry |