3,6-ナフタレンジスルホン酸

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H314：重篤な皮膚の薬傷?眼の損傷

• 注意書き

  P260：粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ と。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P310：ただちに医師に連絡すること。

3,6-ナフタレンジスルホン酸 価格

3,6-ナフタレンジスルホン酸 化学特性,用途語,生産方法

• 化学的特性

  White, crystalline solid.Soluble in water. Combustible. Naphthalene-2,7-disulfonic acid [92- 41-1]. C10H8O6S2, Mr 288.28; the sodium salt of Naphthalene-2,7-disulfonic acid is much more soluble than that of the 2,6- isomer but can be isolated and purified by precipitation of the calcium salt at lower temperature followed by recrystallization.

• 使用

  Intermediate for dyes. The disodium salt of 8 gives 2-hydroxynaphthalene-7-sulfonic acid or 2,7-dihydroxynaphthalene by fusion processes. Sulfonation by oleum gives the 1,3,6-trisulfonic acid, and nitration gives 1-nitronaphthalene-3,6- disulfonic acid. In sulfuric acid solution, the disodium salt of naphthalene-2,7-disulfonic acid undergoes an unusual reaction at the 4-position with 4,40 -bis- (dimethylamino)benzhydrol. The resulting condensation product is oxidized with lead dioxide to give the acid basic dye C.I. Acid Green 16.

• 定義

  ChEBI: A naphthalenesulfonic acid in which the sulfo groups are attached to positions 2 and 7 of the naphthalene ring.

• 純化方法

  Crystallise the acid from conc HCl. The disulfonamide has m 273o (from EtOH). [Beilstein 11 II 119, 11 III 463.]

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92-41-1, 3,6-ナフタレンジスルホン酸 キーワード