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Lutropur® MSA: Methanesulfonic Acid from BASF OH3C S OH O
Properties
Methanesulfonic Acid – Key Benefits
Strong organic acid Odourless
O
Non-oxidizing
High thermal stability
H3C
S O
OH
High solubility of salts Readily biodegradable
Easy to handle Low TOC
Ka Values
1000
Ka
10
[H+] • [A-] Ka = [HA]
0,1
0,001
MSA
0,00001
Acetic Acid
Acetic acid
Formic Acid
Formic acid
Citric Acid
Citric acid
Phosphoric Sulfamic acid acid
Phosphoric Acid
Sulfamic Acid
MSA
Sulfuric Acid
Sulfuric Hydrochloric acid acid
HCl
Thermal Stability
Method: DSC (Dynamic Scanning Calorimetry, DIN 51007)
MSA
Onset 220 °C
PTSA
Onset 170 °C
Vapour pressure
Vapour pressure [bar] 1,0E+03 10 3
1,0E+01 10 1
1,0E-01 10-1
1,0E-03 10-3
1,0E-05 -5
10
1,0E-07 -7
10
HCl Sulfuric Acid Acetic Acid Formic Acid MSA
1,0E-09 -9
10
0
50
100
150
200
250
300
T [°C]
Applications
Possible Fields of Application
Function
Brönstedt acid
Example alkylation reactions esterification reactions condensation reactions acylation reactions cyclization reactions rearrangement reactions neutralization steps polymerization reactions
O O
formation of mesylates (pharmaceuticals, dyestuffs) Solvent polymer production oxidation reactions Powerful acid for cleaning applications
Salification/Mesylation
H3C S OH
The ideal catalyst for esterification, e.g.production of multifunctional acrylates
Lutropur® MSA
Methanesulfonic Acid alcohol + acrylic acid catalyst: Lutropur® MSA
Multifunctional acrylates (MFA)
Trimethylolpropane triacrylate (TMPTA) Neopentylglycol diacrylate (NPGDA) Pentaerythritol triacrylate (PETA)
multifunctional acrylate
Tripropyleneglycol diacrylate (TPGDA) Triethyleneglycol diacrylate (TREGDA) Tetraethyleneglycol diacrylate (TTEGDA) Hexanediol diacrylate (HDDA) Dipropyleneglycol diacrylate (DPGDA) Butandiol