Metanilic acid synthesis
- Product Name:Metanilic acid
- CAS Number:121-47-1
- Molecular formula:C6H7NO3S
- Molecular Weight:173.19
108-44-1
390 suppliers
$9.00/1g
121-47-1
430 suppliers
$6.00/25g
Yield:121-47-1 93%
Reaction Conditions:
with aluminum oxide;sulfuric acid at 45 - 80; for 2.5 h;
Steps:
3 Example 3
In the reaction container by adding 2 µM of 3 - methylaniline, 4 µM mass fraction is 40% sulfuric acid solution, 13 g of alumina powder, raising the temperature of the solution to the 45 °C, the stirring speed is 110 rpm, stirring 110 min after, raising the temperature of the solution to 80 °C, return 40 min, the mass fraction is 20% potassium bromide solution washing, the mass fraction is 40% cyclohexane solution washing, the mass fraction is 50% butanone solution washing, phosphorus pentoxide desiccant dehydration, in the mass fraction is 80% in isopropanol solution of recrystallization, sulfanilic acid shall be crystal between 323.64 g, yield 93%.
References:
Chengdu Zhong Heng Huatie Technology Co., Ltd.;Peng Xiangliang CN108395388, 2018, A Location in patent:Paragraph 0011; 0013; 0014; 015
127-68-4
560 suppliers
$5.00/25g
121-47-1
430 suppliers
$6.00/25g
98-47-5
9 suppliers
$114.00/5g
121-47-1
430 suppliers
$6.00/25g
98-44-2
224 suppliers
$10.00/1g
121-47-1
430 suppliers
$6.00/25g