1,3,7-Naphthalenetrisulfonic acid synthesis
- Product Name:1,3,7-Naphthalenetrisulfonic acid
- CAS Number:85-49-4
- Molecular formula:C10H8O9S3
- Molecular Weight:368.36
91-20-3
519 suppliers
$15.50/250mg
6654-64-4
112 suppliers
$19.00/250mg
86-66-8
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85-49-4
1 suppliers
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Yield:86-66-8 80% ，85-49-4 13% ，6654-64-4 6%
Reaction Conditions:
with sulfuric acid;sulfur trioxide at 65 - 150;
Steps:
Sulfonation treatment: the liquid naphthalene and concentration of 100% sulfuric acid solution was continuously added to the kettle sulfonated, sulfonated kettle temperature rose to 90 , for the first time sulfonated, after the first sulfonated products were continuously fed to the buffer tank indexable sulfonated column, the column transposition sulfonated temperature rose to 150 , conducted transfer reaction;The complete material transfer reaction mass concentration of 100% sulfuric acid solution and the mass concentration of 65% oleum sulfonation continuously fed to the reactor, the reactor temperature sulfonation was 65 , second sulfonated;And materials will be sent to the concentration after the second sulfonated completed 65% oleum sulfonated three towers, three towers sulfonation the temperature rose to 150 , a third sulfonated, sulfonated generation, sulfonated sulfonated and into the buffer storage tank.Sulfonated as nitrification spare
References:
CN105669500,2016,A Location in patent:Paragraph 0058; 0059; 0060; 0061; 0062
120-18-3
287 suppliers
$7.00/25g
6654-64-4
112 suppliers
$19.00/250mg
86-66-8
21 suppliers
inquiry
85-49-4
1 suppliers
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581-75-9
64 suppliers
$333.00/1g
85-49-4
1 suppliers
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86-65-7
98 suppliers
$60.00/1g
85-49-4
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6362-05-6
2 suppliers
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85-49-4
1 suppliers
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