Methanesulfonic acid, 70% aq. soln.

Description

CAS: 75-75-2 | CH4O3S | 96.1 g/mol

Methane sulfonic acid 70% solution is used virtually in all electronic applications involving tin or tin-alloy plating from non fluoborate systems. It replaces phosphoric acid in detergent formulations, thereby helping to avoid environmental phosphate pollution. It is used in the preparation of polyaniline/graphene nanocomposites, which enhances its thermal and electrical properties. It is utilized for electropolishing of aluminum as well as in electroplating of noble metals like gold, platinum, palladium and their alloys.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Methane sulfonic acid 70% solution is used virtually in all electronic applications involving tin or tin-alloy plating from non fluoborate systems. It replaces phosphoric acid in detergent formulations, thereby helping to avoid environmental phosphate pollution. It is used in the preparation of polyaniline/graphene nanocomposites, which enhances its thermal and electrical properties. It is utilized for electropolishing of aluminum as well as in electroplating of noble metals like gold, platinum, palladium and their alloys.

Solubility
Miscible with water. Slightly miscible with benzene and toluene. Immiscible with paraffins.

Notes
Light and heat sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with amines, strong reducing agents, ethyl vinyl ether, hydrofluoric acid, strong oxidizing agents and bases.

Specifications

Chemical Identifiers

• CAS: 75-75-2
• Molecular Formula: CH4O3S
• Molecular Weight (g/mol): 96.1
• MDL Number: MFCD00007518
• InChI Key: AFVFQIVMOAPDHO-UHFFFAOYSA-N
• Synonym: methylsulfonic acid, methanesulphonic acid, methanesulfonicacid, kyselina methansulfonova, methansulfonsaeure, ccris 2783, kyselina methansulfonova czech, ch3so3h, methane sulfonic acid, sulfomethane
• PubChem CID: 6395
• ChEBI: CHEBI:27376
• IUPAC Name: methanesulfonic acid
• SMILES: CS(=O)(=O)O

• Density: 1.32
• Flash Point: >110°C (230°F)
• Refractive Index: 1.415
• Quantity: 500 mL
• UN Number: UN2586
• Merck Index: 14,5954
• Solubility Information: Miscible with water. Slightly miscible with benzene and toluene. Immiscible with paraffins.
• Formula Weight: 96.1
• Concentration or Composition (by Analyte or Components): 70% aq. soln.
• Chemical Name or Material: Methanesulfonic acid

Safety and Handling

Hazard Category	H290-H302+H312-H314-H335
Hazard Statement	GHS H Statement H314 Causes severe skin burns and eye damage.
Precautionary Statement	P234-P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P390-P501c
DOTInformation	Hazard Class: 8; Packaging Group: II
EINECSNumber	200-898-6
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only