Methanesulfonic acid
SIAL/471356 - ≥99.0%
Synonym: Mesylic acid; MsOH
CAS Number: 75-75-2
Empirical Formula (Hill Notation): CH4O3S
Molecular Weight: 96.11
EC Number: 200-898-6
MDL Number: MFCD00007518
Linear Formula: CH3SO3H
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 471356-100ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 471356-500ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 471356-25ML
| assay | ≥99.0% |
| bp | 167 °C/10 mmHg (lit.) |
| density | 1.481 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/CH4O3S/c1-5(2,3)4/h1H3 |
| InChI key | AFVFQIVMOAPDHO-UHFFFAOYSA |
| mp | 17-19 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | O=S(O)(C)=O |
| solubility | water: soluble 1,000 g/L at 20 °C |
| vapor density | 3.3 (vs air) |
| vapor pressure | 1 mmHg ( 20 °C) |
| Application: | Methanesulfonic acid may be used: • As a catalyst to produce linear alkylbenzenes by the addition reaction between long-chain olefins and benzene. • To prepare polyaniline (PANI)/graphene composites with enhanced thermal and electrical properties. • As a catalyst for the transformation of glucose/xylose mixtures to levulinic acid and furfural. |
| General description: | Methanesulfonic acid (MSA) is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. MSA undergoes biodegradation by forming CO2 and sulphate. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes. |
| Packaging: | 2.5 L in glass bottle |
| Packaging: | 5 L in poly drum |
| Packaging: | 5, 25, 100, 500 mL in glass bottle |
| Symbol |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H290 - H302 + H312 - H314 - H335 |
| Precautionary statements | P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 21/22-34 |
| Safety Statements | 26-36/37-45 |
| RIDADR | UN 3265 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 372.2 °F - closed cup |
| Flash Point(C) | 189 °C - closed cup |
| Purity | ≥99.0% |
| bp | 167 °C/10 mmHg (lit.) |
| mp | 17-19 °C (lit.) |
| Density | 1.481 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |