827-19-0

Basic information

• Product Name: 2,5-DIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE
• Synonyms: SODIUM 2,5-DIMETHYLBENZENESULFONATE;2,5-DIMETHYLBENZENESULFONIC ACID, SODIUM SALT;2,5-DIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE;2,5-dimethyl-benzenesulfonicacisodiumsalt;sodium p-xylene-2-sulphonate;2,5-Dimethylbenzenesulfonic acid sodium salt, monohydrate, 99+%;Benzenesulfonic acid, 2,5-dimethyl-, sodium salt;(R)-(-)-2-XDIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE
• CAS NO: 827-19-0
• Molecular Formula: C₈H₉O₃S*Na
• Molecular Weight: 208.21
• EINECS: 212-566-8
• Mol File: 827-19-0.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,5-DIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-DIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE(827-19-0)
• EPA Substance Registry System: 2,5-DIMETHYLBENZENESULFONIC ACID SODIUM SALT MONOHYDRATE(827-19-0)

Safety Data

• Safety Statements: 24/25
• Hazardous Substances Data: 827-19-0(Hazardous Substances Data)

Usage

Chemical Properties

white fine powder

Purification Methods

Dissolve it in distilled water, filter it, then evaporate it to dryness. Recrystallise it twice from absolute EtOH or MeOH and dry it at 110o under vacuum. [Beilstein 11 III 93, 11 IV 502.]

InChI:InChI=1/C8H10O3S.Na.H2O/c1-6-3-4-7(2)8(5-6)12(9,10)11;;/h3-5H,1-2H3,(H,9,10,11);;1H2/q;+1;/p-1

Upstream product

• 676-58-4 methylmagnesium chloride 
• 71-43-2 benzene 
• 106-42-3 para-xylene 
• 609-54-1 2,5-dimethylbenzenesulfonic acid 

Downstream Products

• 90254-03-8 p-xylene-2-sulphonic acid S-benzylisothiouronium salt 
• 95-87-4 2,5-Dimethylphenol 
• 19089-60-2 2-sulfoterephthalic acid monosodium salt 

Relevant articles and documents

Preparation of monosodium 2-sulfoterephthalate to make a MIL-101(Cr)-SO3H catalyst

MIL-101(Cr)-SO3H has excellent thermal and chemical stabilities, making it an ideal porous acid catalyst for many organic reactions and petrochemical industries. However, there are some disadvantages such as the fact that it is not easy to mass produce crystalline MIL-101(Cr)-SO3H and it is time-consuming to purchase the starting organic ligand of 2-sulfoterephthalate monosodium (sTA-Na). In this study, readily available p-xylene (1,4-dimethylbenzene) was used as the raw material for the lab-synthesis of sTA-Na. Some optimal conditions were studied and established to obtain a maximum sTA-Na yield of ～75%. The prepared sTA-Na was characterized by FT-IR, PXRD, FE-SEM, NMR and MS spectroscopies, showing that its functional groups, molecular structure, and molecular weight are the same as those of the commercial counterpart from TCI company; however, their particle shapes and crystal phases are different. Then, the MIL-101(Cr)-SO3H powder was prepared from the lab-synthesized sTA-Na and used as a catalyst in ethylene dichloride (EDC) cracking to produce a vinyl chloride monomer (VCM). The catalytic activity test in the EDC cracking showed that the reaction temperature can be lowered to 255 °C from 550 °C, while the percentage conversion (～75%) and the selectivity (99.8%) remain unchanged or even better than those in current industrial processes, indicating that MIL-101(Cr)-SO3H is a promising catalyst applied as an energy efficiency technology in the EDC cracking to produce VCM.