Sulfanilic acid 4-Aminobenzenesulfonic acid CAS: 121-57-3

FOB Price
USD $18.00 / Piece
Place Of Origin
hunan
Minimum Order
1
Packaging
bags
Delivery
7 Days
Product Name: Sulfanilic acid
Synonyms: 4-Aminobenzenesulfonic acid; 4-Anilinesulfonic acid; Sulphanilic acid; 4-Aminobenzenesulphonic acid; Sulphanillic Acid; 4-aminobenzenesulfonate; p-Aminobenesulfonic acid
CAS: 121-57-3
MF: C6H7NO3S
MW: 173.19
EINECS: 204-482-5
Product Categories: Amines;Aromatics;Sulfur & Selenium Compounds;Intermediates of Dyes and Pigments;INORGANIC & ORGANIC CHEMICALS;

Description:

Sulfanilic acid (4-aminobenzenesulfonic acid ) is an off-white crystalline solid which finds application in quantitative analysis of
nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point.

As the compound readily form diazo compounds, it is used to make dyes and sulpha drugs. This property is also used for the quantitat
通过与N-(1-萘基)乙二胺进行重氮偶联反应来分析硝酸根和亚硝酸根离子,产生偶氮染料,
并通过比色法从所得红色溶液的颜色强度中推导出硝酸根或亚硝酸根离子的浓度。

规范:

外观(颜色):白色至淡褐色
形式:结晶粉末
测定(含水酸碱
滴定):
> 98.5至<101.5%

磺胺酸化学性质

mp > 300°C(lit。)
密度 1.485
存储温度 在黑暗中存储!
水溶解度 0.1 g / 100 mL(20 oC)
默克 14,8926
BRN 908765
稳定性: 稳定。与强氧化剂不相容。

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