No restocking fee

No final sale items

100% Payment Secure

Online Support

No restocking fee

No final sale items

100% Payment Secure

Online Support

Cart
Your cart is currently empty.

Methanesulfonic acid

Methanesulfonic acid CAS: 75-75-2 | MF: CH3SO3H | MW: 96.11, Buy now for reliable and Reproducible results from ChemieR Acid at Chemical World.

Methanesulfonic acid (MsOH) is an organosulfuric clear colorless liquid. It is odorless or with a slight sulfuric odor. It is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. Its chemical formula is CH?SO?H. It is the simplest of the alkylsulfonic acids (R?S(=O)2?OH). It is hygroscopic in its concentrated form. Methanesulfonic acid can dissolve a wide range of metal salts. It is miscible in water. It is also miscible with methanol, diethyl ether but immiscible with hexane. It is commonly used in organic synthesis and as a catalyst in various chemical reactions. It is a viable substitute for organic and inorganic strong acids in a variety of applications.

ChemieR offers a comprehensive range of ACS grade and ISO 9001:2015 certified products, including high-purity solvents, inorganic reagents, acids, bases, and organic reagents. Our high-quality materials ensure your laboratory achieves precise, reproducible results every time. Rely on ChemieR for trusted, premium-grade chemicals that meet the highest industry standards.

Application :

  • Methanesulfonic acid can be used in the generation of borane (BH3) by reacting methanesulfonic acid with NaBH4 in an aprotic solvent such as THF or DMSO, the complex of BH3 and the solvent is formed.
  • It is employed in various organic synthesis reactions, including alkylation, cyclization, and sulfonation processes.
  • The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.

Key features :

  • Safe, stable and effective product
  • Strong acid which is soluble in many organic solvents
  • Versatile solvent forms water-soluble salts with all inorganic cations and with most organic cations
  • Non-Volatile and Non-Oxidizing

Properties

Quality Level
200
Vapor Density
3.3 (vs air)
Vapor Pressure
1 mmHg ( 20 °C)
Assay
?99.0%
Form
liquid
autoignition temp.
-
expl. lim.
-
technique(s)
-
impurities
-
color
-
transmittance
-
refractive index
n20/D 1.429 (lit.)
pH
-
bp
167 °C/10 mmHg (lit.)
mp
17-19 °C (lit.)
density
1.481 g/mL at 25 °C (lit.)
UV absorption
-
application(s)
-
SMILES string
O=S(O)(C)=O
InChI
1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChI key
AFVFQIVMOAPDHO-UHFFFAOYSA-N
 

Safety Information

Pictograms
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 Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
8A - Combustible, corrosive hazardous materials
WGK
WGK 1
Flash Point(F)
372.2 °F - closed cup
Flash Point(C)
189 °C - closed cup

Safety Data Sheets (SDS), Product Specification (PS) and Certificates of Analysis (COA) click Document Button