| Identification | Back Directory | [Name]
PHENOLDISULFONIC ACID | [CAS]
96-77-5 | [Synonyms]
PHENOLDISULFONIC ACID
Phenoldisu1fonic acid
PHENOLDISULPHONIC ACID
Phenol-2,4-disulfonicacid
Solution25%wvinsulfuricacid
4-Hydroxybenzenedisulfonicacid
Phenol disulfonic acid solution
Phenol disulphonic acid, GR 25%
4-hydroxy-3-benzenedisulfonicacid
3-Benzenedisulfonicacid,4-hydroxy-1
4-Hydroxy-1,3-benzenedisulfonic acid
Phenol disulfonic acid test solution
4-hydroxy-benzene-1,3-disulfonic acid
4-hydroxybenzene-1,3-disulphonic acid
1,3-Benzenedisulfonic acid, 4-hydroxy-
4-Hydroxybenzene-1,3-bis(sulfonic acid)
Phenol disulfonic acid test solution(ChP)
PhenoldisulphonicAcidSolu.25%W/VInSulphonicA
PHENOLDISULPHONIC ACID SOLUTION 25% W/V IN SULPHURIC ACID | [EINECS(EC#)]
202-533-6 | [Molecular Formula]
C6H6O7S2 | [MDL Number]
MFCD00152742 | [MOL File]
96-77-5.mol | [Molecular Weight]
254.24 |
| Hazard Information | Back Directory | [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.] |
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