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471356

Sigma-Aldrich

Methanesulfonic acid

Methanesulfonic acid
1 of 1 reviewers received a sample product or took part in a promotion

≥99.0%

Synonym(s):

Mesylic acid, MsOH

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25 ML
CZK 1,670.00
100 ML
CZK 2,130.00
500 ML
CZK 5,450.00
2.5 L
CZK 14,100.00

CZK 1,670.00

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25 ML
CZK 1,670.00
100 ML
CZK 2,130.00
500 ML
CZK 5,450.00
2.5 L
CZK 14,100.00

About This Item

Linear Formula:
CH3SO3H
CAS Number:
75-75-2
Molecular Weight:
96.11
Beilstein:
1446024
EC Number:
200-898-6
MDL number:
MFCD00007518
UNSPSC Code:
12352100
PubChem Substance ID:
24870726
NACRES:
NA.21

CZK 1,670.00

Please contact Customer Service for Availability
Request a Bulk Order

vapor density

3.3 (vs air)
[3.3 (vs air)] (vs air)

Quality Level

200

vapor pressure

1 mmHg ( 20 °C)

Assay

≥99.0%

form

liquid

refractive index

n20/D 1.429 (lit.)

pH range

<1

bp

[167 °C/10 mmHg (lit.)]
167 °C/10 mmHg (lit.)

mp

17-19 °C (lit.)

solubility

water: soluble 1,000 g/L at 20 °C

density

1.481 g/mL at 25 °C (lit.)

functional group

sulfonic acid

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

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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.[1] 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[2] The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.[3]

Application

Methanesulfonic acid may be used:
  • As a catalyst to produce linear alkylbenzenes by the addition reaction between long-chain olefins and benzene.[4]
  • To prepare polyaniline (PANI)/graphene composites with enhanced thermal and electrical properties.[5]
  • As a catalyst for the transformation of glucose/xylose mixtures to levulinic acid and furfural.[6]

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX2201
STBL0560
SDBB1480
MKCW2663
MKCV8952

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Sigma-Aldrich

462667

Lead(II) methanesulfonate solution

Facile in-situ preparation of polyaniline/graphene nanocomposites using methanesulfonic acid.
Kim DH and Park SY.
Polymer, 55(12), 2928-2935 (2014)
Use of methanesulfonic acid as catalyst for the production of linear alkylbenzenes.
Luong BX, et al.
J. Catal., 226(2), 301-307 (2004)
Methanesulfonic acid-catalyzed conversion of glucose and xylose mixtures to levulinic acid and furfural.
Rackemann DW, et al.
Industrial Crops and Products, 52, 46-57 (2014)
Methane Sulphonic Acid is Green Catalyst in Organic Synthesis.
Kulkarni P.
Orient. J. Chem., 31(1), 447-451 (2015)
Microbial metabolism of methanesulfonic acid.
Kelly DP and Murrell JC.
Archives of Microbiology, 172(6), 341-348 (1999)
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. What is the method of synthesis of this? Does it start with methane sulfonyl chloride?

    1 answer

    1. Methods of preparation for this product are considered proprietary.

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