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.	+1-781-999-5354;	support@targetmol.com	United States	39039	58
DAYANG CHEM (HANGZHOU) CO.,LTD	+86-88938639 +86-17705817739	info@dycnchem.com	China	53803	58
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd	029-029-81120477 17792793610	1033@dideu.com	China	9995	58

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

---

• 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