HRID66032

反应详情

EQUATION

反应方程式

HRID 66032 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A 14.0 g amount of 4-amino-1,5-naphthalenedisulfonic acid is suspended in 100 ml of water and the solution is made basic with 5N sodium hydroxide. The solution is warmed and absolute ethyl alcohol is added until a solid is precipitated. The solid is collected by filtration and is washed with 85% aqueous ethyl alcohol, ethyl alcohol and ether, then dried in vacuo to yield 12.0 g of 4-amino-1,5-naphthalenedisulfonic acid disodium salt.

WORKUP

后处理

  1. temperatureThe solution is warmed
  2. customis precipitated
  3. filtrationThe solid is collected by filtration
  4. washis washed with 85% aqueous ethyl alcohol, ethyl alcohol and ether
  5. customdried in vacuo