E-mail: sales001@bosschemical.com JINAN BOSS CHEM CO.,LTD
Telephone: +86-15628782329
- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
Views: 0 Author: Y Publish Time: 2026-10-15 Origin: Site
Methanedisulfonic acid is an organic sulfur compound with two sulfonic acid groups. Sodium methanedisulfonate is the sodium salt of methanedisulfonic acid. Do not confuse this with sodium methanesulfonate , which is a different chemical with only one sulfonate group .
The disodium salt of methanedisulfonic acid is commonly known as sodium methanedisulfonate. The corresponding compound has a structure with a central carbon atom, two attached sulfonate groups, and sodium ions to balance the negative charges.
PubChem describes the compound as disodium methanedisulfonate .
The chemical identity of which can be described as:
Property | Information |
Chemical name | Disodium methanedisulfonate |
Related parent acid | Methanedisulfonic acid |
Molecular formula | CH₂Na₂O₆S₂ |
CAS Registry Number | 5799-70-2 |
Compound class | Organic sulfonate salt |
Functional groups | Two sulfonate groups |
Counterion | Sodium |
Its chemical structure defines its ionic character and sets it apart from other sulfur-containing compounds.
The characteristic structural feature is the presence of two sulfonate groups on one carbon center. These groups contain sulfur and oxygen atoms and are negatively charged in the respective disodium salt.
The structure is different from that of a monosulfonate which has only one sulfonate group.
The two sodium ions balance out the charges of the two sulfonate groups. This ionic composition is reflected by the molecular formula CH2Na2O6S2.
The sodium ions and sulfonate groups are important for assessing the compound’s behavior in aqueous systems, its compatibility with other ingredients, and its suitability for a given formulation.
Chemical names can be only a few letters apart for substances with different structures and properties. Therefore, the identity should be established by a combination of molecular formulas, CAS numbers, structural representations and supplier documentation.
One of the most important things to remember when researching sodium methanedisulfonate is that it is not the same thing as sodium methanesulfonate.
They have similar names, but they are not interchangeable.
Characteristic | Disodium methanedisulfonate | Sodium methanesulfonate |
Molecular formula | CH₂Na₂O₆S₂ | CH₃NaO₃S |
CAS number | 5799-70-2 | 2386-57-4 |
Sulfonate groups | Two | One |
Sodium ions per formula unit | Two | One |
Chemical classification | Disulfonate salt | Monosulfonate salt |
sodium methanesulfonate, CH₃NaO₃S, is listed separately. Disodium methanedisulfonate has an additional sulfonate group which changes the molecule and the chemical identity.
This distinction is especially important when requesting quotations, reviewing certificates of analysis, comparing technical data sheets or preparing chemical inventories.
A product described only as a sodium methanedisulfonate should be checked against its CAS number and molecular formula before purchase.
The physical and chemical properties of sodium methanedisulfonate should be established from reliable product-specific documentation.
The molecular formula identifies the compound, but it does not independently establish its appearance, solubility, melting or decomposition behavior, stability, or compatibility with other substances.
When evaluating this chemical, consider the following parameters.
Check the supplier's technical data sheet for the material's physical form, color, and acceptable appearance range.
Do not assume that every product sold under a similar chemical name has an identical appearance or purity.
Water solubility is an important specification when a chemical is intended for an aqueous formulation or industrial process.
However, the value for the solubility of the particular grade of sodium methanedisulfonate used should be obtained from the supplier, or determined by an appropriate method. Data on the solubility of sodium methanesulfonate or other related sulfonates should not be relied upon.
The molecular weight of disodium methanedisulfonate can be calculated based on its molecular formula, CH_2Na_2O_6S_2.
Using standard atomic weights, its approximate molar mass is 192.1 g/mol.
This value applies to the anhydrous formula shown above. If a supplied material is hydrated, contains a different salt form, or is a solution rather than a pure solid, its reported composition and concentration must be considered separately.
Temperature, moisture, pH, concentration, other chemicals, etc. can all affect stability.
Before an industrial application of sodium methanedisulfonate, review the available data on stability and conduct compatibility testing under conditions of proposed use.
The appropriate uses of sodium methanedisulfonate are dependent on its verified identity, purity and experimentally established performance.
The fact that it is an organic disulfonate salt tells you something about its chemical structure, but structural similarity is not enough to establish a commercial application.
In considering a possible use, consider the following areas of investigation.
In laboratory research, the compound could be used as a chemical material for studies on sulfonate chemistry, ionic compounds or formulation development.
The suitability for a particular reaction or research procedure has to be backed up by published experimental evidence or shown in a validated laboratory.
Formulators may want to look into specialty sulfonate compounds when designing aqueous systems or evaluating the effect of ionic ingredients on a product’s performance.
Relevant questions concerning sodium methanedisulfonate include its solubility, chemical compatibility, stability, impurity profile and effect on the finished formulation.
These characteristics should be shown and not inferred from the properties of related chemicals.
Before identifying sodium methanedisulfonate as a functional ingredient for a specific industrial sector, verify that the proposed use is supported by a manufacturer, technical publication, patent, or other reliable source.
Do not assume it has the same established uses as sodium methanesulfonate or methanedisulfonic acid because of their name.
For commercial projects, a good starting point is the supplier’s technical data sheet and application-specific performance data.
The disodium salt of methanedisulfonic acid has the formula CH 2 Na 2 O 6 S 2 . If a supplier uses the short name sodium methanedisulfonate make sure this is the correct material.
The CAS Registry Number for disodium methanedisulfonate is 5799-70-2.
The supplier’s product documentation should be checked against this identifier before ordering or using the material.
No. Disodium methanedisulfonate has two sulfonate groups, formula CH 2 Na 2 O 6 S 2 . Sodium methanesulfonate has one sulfonate group, formula CH 3 NaO 3 S .
They are different chemical substances as shown by their different molecular formulas and CAS numbers .
The applicability for aqueous application has to be determined with verified solubility data for the specific material. Do not assume data for a related sulfonate also applies: consult the supplier’s technical documentation or run an appropriate solubility test.
Company-specific commercial applications must be verified from reliable technical documentation, published research, or manufacturer data. The chemical classification alone does not establish a particular industrial use or demonstrate suitability for a particular formulation.
Observe the storage conditions of the product specific SDS and technical data sheet Check the recommended temperature, moisture protection, container and segregation instructions for the specific material.
Methanedisulfonic acid has a disodium salt . The disodium salt of methanedisulfonic acid is sodium methanedisulfonate . Main identifiers Molecular formula CH2Na2O6S2 CAS number 5799-70-2 Disodium methanedisulfonate
The most important thing to check when researching or buying this compound is to be sure that it is in fact this compound and not sodium methanesulfonate that has a different molecular composition and CAS number.
