Basic information Safety Supplier Related

PHENOLDISULFONIC ACID

Basic information Safety Supplier Related

PHENOLDISULFONIC ACID Basic information

Product Name:
PHENOLDISULFONIC ACID
Synonyms:
  • 4-hydroxy-3-benzenedisulfonicacid
  • 4-Hydroxybenzenedisulfonicacid
  • Phenol-2,4-disulfonicacid
  • PHENOLDISULFONIC ACID
  • Phenol disulfonic acid solution
  • PHENOLDISULPHONIC ACID
  • 4-hydroxybenzene-1,3-disulphonic acid
  • PhenoldisulphonicAcidSolu.25%W/VInSulphonicA
CAS:
96-77-5
MF:
C6H6O7S2
MW:
254.24
EINECS:
202-533-6
Product Categories:
  • Intermediates of Dyes and Pigments
Mol File:
96-77-5.mol
More
Less

PHENOLDISULFONIC ACID Chemical Properties

Melting point:
>99.85°C
Boiling point:
367.45°C (rough estimate)
Density 
1.606 (estimate)
refractive index 
1.6550 (estimate)
form 
liquid
pka
-1.13±0.45(Predicted)
color 
Yellow to brown
Water Solubility 
Reacts with water
EPA Substance Registry System
1,3-Benzenedisulfonic acid, 4-hydroxy- (96-77-5)
More
Less

Safety Information

HazardClass 
IRRITANT
PackingGroup 
II
More
Less

PHENOLDISULFONIC ACID Usage And Synthesis

Uses

In the manufacture of aminophenoldisulfonic acids which are intermediates in the dye industry.

Production Methods

Phenoldisulfonic acid is obtained by hydrolysis of the dichloride with ethyl alcohol and/or water. Nitration and reduction of this acid gives 5- amino-4-hydroxy-1,3-benzenedisulfonic acid. 4-Hydroxy-1,3-benzenedisulfonic acid accelerates the rearrangement of cumene hydroperoxide in the Hock – Lang phenol process.

Purification Methods

Crystallise the acid from EtOH/diethyl ether. [Beilstein 11 H 250, 11 I 58, 11 II 139, 6 III 522.]

PHENOLDISULFONIC ACIDSupplier

Codow Chemical Co.,Ltd.
Tel
18620099427 18620099427
Email
amy@howeipharm.com
Amadis Chemical Company Limited
Tel
571-89925085
Email
sales@amadischem.com
JinJin Le Chemical Co., Ltd
Tel
10106090
Email
jjlchem2@163.com
Dayang Chem (Hangzhou) Co.,Ltd.
Tel
571-88938639 +8617705817739
Email
info@dycnchem.com
AFINE CHEMICALS LIMITED
Tel
0571-85134551
Email
info@afinechem.com