Methanedisulfonic acid

Base Information

• Chemical Name: Methanedisulfonic acid
• CAS No.: 503-40-2
• Molecular Formula: CH4O6S2
• Molecular Weight: 176.171
• Hs Code.: 2904100000
• European Community (EC) Number: 228-543-0,207-966-4
• UNII: 55N1VUX48W
• DSSTox Substance ID: DTXSID3060118
• Nikkaji Number: J6.211A
• Wikipedia: Methanedisulfonic_acid
• Wikidata: Q27261323
• Mol file: 503-40-2.mol

Synonyms:METHANEDISULFONIC ACID;503-40-2;Methanedisulphonic acid;Methionic acid;Methane disulfonic acid;METHANEDISULFONICACID;MFCD00041888;UNII-55N1VUX48W;55N1VUX48W;EINECS 207-966-4;Dipotassium methionate;93NQD5PEW6;Dipotassium methanedisulphonate;NSC8541;EINECS 228-543-0;Methanedisulfonic acid, dipotassium salt;Disulfomethane;Methionsaure;CH4O6S2;methylenedisulfonic acid;UNII-93NQD5PEW6;METHIONIC ACID [MI];SCHEMBL34406;DTXSID3060118;C-H4-O6-S2;NSC 8541;BBL103928;STL557738;AKOS005259705;AS-17428;SY157937;FT-0628283;EN300-180243;F16475;A828074;W-105971;Q27261323

Chemical Property of Methanedisulfonic acid

Chemical Property:

• Appearance/Colour: white powder
• Vapor Pressure: 0Pa at 25℃
• Melting Point: 107-109oC
• Refractive Index: 1.581
• Boiling Point: 263℃ at 101.3kPa
• PKA: -0.71±0.50(Predicted)
• PSA: 125.50000
• Density: 2.145 g/cm³
• LogP: 0.88110
• Storage Temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
• Solubility.: DMSO (Sparingly, Heated), Methanol (Slightly)
• Water Solubility.: 2458g/L(25 oC)
• XLogP3: -1.9
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 2
• Exact Mass: 175.94493019
• Heavy Atom Count: 9
• Complexity: 225

Purity/Quality:

99% ^*data from raw suppliers

MethaneDisulfonicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C(S(=O)(=O)O)S(=O)(=O)O
• Uses: Methane disulfonic acid is used in esterification.

Technology Process of Methanedisulfonic acid

There total 76 articles about Methanedisulfonic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 89.0%

dichloromethane (75-09-2) + calcium methanedisulfonate → methanedisulfonic acid (503-40-2)

Guidance literature:

dichloromethane; With calcium sulfite; In water; at 180 ℃; for 10h; Autoclave;

calcium methanedisulfonate; With sulfuric acid; In water; at 80 ℃; for 2h; Reagent/catalyst; Temperature;

Reference yield: 84.7%

1,1-dibromomethane (74-95-3) → methanedisulfonic acid (503-40-2)

Guidance literature:

1,1-dibromomethane; With potassium sulfite; tetrabutylammomium bromide; potassium iodide; In water; at 80 - 90 ℃; for 88h;

With hydrogenchloride; In water; at 90 ℃; for 2h;

With barium(II) chloride; In water; at 20 - 90 ℃; for 2h;

Reference yield: 82.0%

1-azido-2-methylanthraquinone (21301-46-2) → 1-amino-2-methyl-4-chloroanthraquinone (3225-97-6)

Guidance literature:

With hydrogenchloride; In acetic acid; Heating;

upstream raw materials:

methylene trithiocarbonate

acetamide

sulfoacetic acid

LACTIC ACID

Downstream raw materials:

Dimethyl ether

diethyl ether

methanedisulfonyl chloride

methanetrisulfonic acid

Refernces

• 1、 -. "Method for preparing methanedisulfonic acid". Page/Page column 0034. . Retrieved 2016/01/10.
• 2、 -. "Process for oxidation of methane to acetic acid". Page/Page column 3-5; sheet 1-3. . Retrieved 2008/06/13.