4-Amino-1,3-benzenedisulfonic acid
137-51-9Nc1ccc(S(=O)(=O)O)cc1S(=O)(=O)OIMUUNYPYNWXUBO-UHFFFAOYSA-N137-51-9DTXSID4059675安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Danger
H318 (71.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
P264+P265, P280, P305+P351+P338, P305+P354+P338, P317, and P337+P317 (click each P-code to see the statement)
Aggregated GHS information provided per 145 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
用途有機合成原料。
4-Amino-1,3-benzenedisulfonic acid is freely soluble in water and ethyl alcohol. It is prepared by sulfonating 4-aminobenzenesulfonic acid with oleum at 20 ℃ and130 ℃ (4 – 6.5 h), draining the sulfonation mixture into water under pressure, adding lime at 70 – 75 ℃, separating the resulting gypsum, precipitating the calcium ions with soda, removing the calcium carbonate formed, and concentrating the sodium salt solution by evaporation. Yield 90 – 91%
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