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The synthesis of 1,4-butanedisulfonic acid from 1,4-butanediol typically involves a two-step process:
1. Sulfonation: 1,4-butanediol is reacted with a strong sulfonating agent, such as concentrated sulfuric acid or chlorosulfonic acid, to form 1,4-butanedisulfonic acid.
2. Isolation and Purification: The resulting product is then isolated and purified through various techniques, such as precipitation, filtration, and recrystallization.