4,5-Dihydroxybenzol-1,3-disulfonsure Chemische Eigenschaften,Einsatz,Produktion Methoden

Vorbereitung Methode

4,5-dihydroxybenzene-1,3-disulphonic acid is produced by sulfonation of pyrocatechol with oleum or by alkali fusion of 2-hydroxy-1,3,5-benzenetrisulfonic acid: 10 kg of the tetrasodium salt of phenoltrisulfonic acid is introduced into 16 kg of sodium hydroxide at about 20 ℃. After adding some water, the temperature is gradually raised to 160 ℃; at the end of the reaction the melt is diluted with water and acidified with sulfuric acid, and sulfur dioxide is driven off. After cooling, precipitated sodium sulfate is removed by filtration and excess sulfate ions are precipitated in fractions. Finally the barium salt, which has poor solubility in cold water, is precipitated.

4,5-Dihydroxybenzol-1,3-disulfonsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

4,5-Dihydroxybenzol-1,3-disulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Firmenname	Telefon	E-Mail	Land	Produktkatalog	Edge Rate
TargetMol Chemicals Inc.		support@targetmol.com	United States	38631	58
SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD	0755-0755-0755-83725350 13380397412	3001280422@qq.com	China	10005	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	15229059051	1027@dideu.com	China	10003	58

149-46-2(4,5-Dihydroxybenzol-1,3-disulfonsure)Verwandte Suche:

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• 4,5-dihydroxybenzene-1,3-disulphonic acid
• 1,2-Dihydroxy-3,5-benzenedisulfonic acid
• 1,2-Dihydroxybenzene-3,5-disulfonic acid
• 4,5-Dihydroxybenzene-1,3-disulfonic acid
• Pyrocatechol-3,5-disulfonic acid
• 1,3-Benzenedisulfonicacid, 4,5-dihydroxy-
• 4,5-dihydroxy- (9ci)1,3-Benzenedisulfonic acid
• Tiron free acid
• 149-46-2