| Company Name: |
Chengdu HuaXia Chemical Reagent Co. Ltd
|
| Tel: |
400-1166-196;028-84555506- ;028-84555506- |
| Email: |
cdhxsj@163.com;cdhxsj@163.com;cdhxsj@163.com |
| Products Intro: |
Product Name:benzene-1,3-disulphonic acid
CAS:98-48-6
Purity:99% HPLC Package:10g;50g;100g;500g;1kg;5kg;25kg |
| Company Name: |
Shandong Ono Chemical Co., Ltd.
|
| Tel: |
0539-6362799（To 20） |
| Email: |
861669111@qq.com |
| Products Intro: |
CAS:98-48-6
Purity:90% Package:25g;100g;500g;1kg;25kg |
|
| | benzene-1,3-disulphonic acid Basic information |
| Product Name: | benzene-1,3-disulphonic acid | | Synonyms: | 831-59-4 (2 Sodium);Ai3-28531;Einecs 202-672-2;1,3-Benzenedisulfoni;benzene-1,3-disulphonic acid;BENZENE-M-DISULFONIC ACID;BENZENE-3-DISULFONICACID;benzene 1,3-disulfonate | | CAS: | 98-48-6 | | MF: | C6H6O6S2 | | MW: | 238.24 | | EINECS: | 202-672-2 | | Product Categories: | | | Mol File: | 98-48-6.mol |  |
| | benzene-1,3-disulphonic acid Chemical Properties |
| | benzene-1,3-disulphonic acid Usage And Synthesis |
| Definition | ChEBI: A member of the class of benzenesulfonic acids consisting of benzene carrying two sulfo groups at positions 1 and 3 respectively. | | Purification Methods | Free it from H2SO4 by conversion to the calcium or barium salts (using Ca(OH)2 or Ba(OH)2, and filtering). The calcium salt is then converted to the potassium salt, using K2CO3. Both the potassium and the barium salts are recrystallised from H2O, and the acid is regenerated by passing through the H+ form of a strong cation exchange resin. The acid is recrystallised twice from conductivity water and dried over CaCl2 at 25o. [Atkinson et al. J Am Chem Soc 83 1570 1961.] It has also been crystallised from Et2O and dried in a vacuum oven. The S-benzylisothiuronium salt has m 214.3o (from EtOH/H2O). [Beilstein 11 IV 553.] It is best kept as the disodium salt [831-59-4] which decomposes on heating [Beilstein 11 H 199, 11 I 48, 11 II 213, 11 III 453.] |
| | benzene-1,3-disulphonic acid Preparation Products And Raw materials |
|