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Lutropur MSA Methanesulfonic acid 70% is a colorless and odorless aqueous organic acid solution produced by BASF and containing approximately 70% methanesulfonic acid by weight. This product, which has the formula CH₃SO₃H and is defined by CAS No 75-75-2; It is used to descale in cleaning products, to serve as an acid component in electroplating baths, and as a catalyst in chemical reactions such as esterification.
This product, which is also sought as methanesulfonic acid 70% solution, has no oxidizing effect and low vapor pressure despite its strong acid character. Thanks to these properties, Lutropur MSA Methanesulfonic acid 70% is considered as an alternative to mineral acids such as sulfuric, hydrochloric and phosphoric acid in descalers, toilet bowl and surface cleaners, CIP systems, tin and printed circuit coating baths and biodiesel production.
Being less corrosive compared to mineral acids, being easily biodegradable and produced without the use of chlorine are the main features that make Lutropur MSA Methanesulfonic acid 70% stand out. The high solubility of the product's salts also reduces the risk of lime and metal salt precipitation, providing a practical advantage in cleaning and coating processes.
In the molecule, a methyl group is directly attached to the sulfonic acid group (–SO₃H) and has a molecular weight of approximately 96.10 g/mol. In Lutropur MSA Methanesulfonic acid 70%, this acid is completely dissolved in water and its solution density is about 1.35 g/cm³.
WHAT IS LUTROPUR MSA METHANESULFONIC ACID 70%?
Lutropur MSA Methanesulfonic acid 70% is an aqueous solution containing approximately 70% active acid by weight, which BASF offers under the brand name Lutropur. According to BASF, the active ingredient of the product is high-purity methanesulfonic acid, which is produced in a self-developed and patented continuous process. The final distillation step ensures the high degree of purity of the product.
Chlorine is not used in production; therefore, Lutropur MSA Methanesulfonic acid is defined as a 70% chloride-free acid. This is especially important in reducing the risk of pitting corrosion caused by chloride acids in stainless steel equipment. BASF positions the product as a colorless, odorless, non-oxidizing and non-reducing strong organic acid that is easily transportable.
Methanesulfonic acid is part of the natural sulfur cycle and Lutropur MSA Methanesulfonic acid 70% is in the easily biodegradable class according to the OECD 301 A method. BASF's safety data sheet states that the effect of the product on microorganisms in activated sludge occurs at a concentration above 1,000 mg/L.
Since Lutropur MSA Methanesulfonic acid is offered as a 70% aqueous solution, it is miscible with water in any proportion and does not require a separate dissolution step before use. BASF offers the anhydrous product Lutropur MSA 100 in the same family, and the higher concentration products Lutropur MSA-XP and Lutropur MSA-SP. The product discussed on this page is a 70% aqueous solution.
Lutropur MSA Methanesulfonic acid 70% is not a disinfectant, preservative or surfactant. Its main role is; to dissolve limescale, metal oxide and alkaline residues, to lower pH and to be a protonating component in acid-catalyzed reactions. Together with other components of the system used, it determines the cleaning, coating or synthesis performance.
COMMON PRODUCT AND CHEMICAL NAMES
Lutropur MSA Methanesulfonic acid 70%
Methanesulfonic Acid 70% (Methanesulfonic Acid 70%)
Mesylic Acid, Methylsulfonic Acid, MSA
CAS NO, EC / EINECS NO AND CHEMICAL IDENTIFICATION
Product Name: Lutropur MSA Methanesulfonic acid 70%
Manufacturer: BASF
BASF article number (PRD): 30096873
Chemical name: Methanesulfonic acid
Chemical class: Organic sulfonic acid
CAS No: 75-75-2
EC/EINECS No: 200-898-6
Molecular formula: CH₃SO₃H (CH₄O₃S)
Molecular weight: Approximately 96.10 g/mol
Concentration: Approx. 70% in water
Physical form: Liquid
Appearance: Colorless, clear
Odor: Odorless
Density: Approx. 1.35 g/cm³
Water solubility: Miscible in any proportion
Refractive index: Approximately 1.413–1.415 (laboratory grade 70% solution data)
Vapor pressure: Approx. 4 hPa, 20 °C (supplier data)
Melting/freezing point: Approx. −54 °C (varies by source)
Oxidizing property: None, not classified as an oxidizer due to its structure
Biodegradability: Easily degradable (OECD 301 A, DOC reduction > 70%)
Carriage: UN 3265, Class 8, Packing Group II (Corrosive liquid, acidic, organic, n.e.c.)
Certification information: EU Ecolabel assessment statement available, eligible for Nordic Swan, included in the EPA Safer Chemical Ingredients List
Main function: Acid, descaler, plating bath acid component, catalyst
Main application: Household and industrial cleaning products
Main application: Electroplating and metal surface treatment
Main application: Biodiesel and chemical synthesis
CHEMICAL STRUCTURE AND MOLECULAR PROPERTIES OF LUTROPUR MSA METHANESULFONIC ACID 70%
The active ingredient in Lutropur MSA Methanesulfonic acid 70% is methanesulfonic acid, which is formed by the bonding of a methyl group to the sulfonic acid group. In this molecule, whose structural formula is CH₃–SO₃H, the sulfur atom is bonded with three oxygen atoms, and one of these oxygens carries acidic hydrogen.
The sulfonic acid group gives it a very strong acid character with almost complete dissociation in water. Lutropur MSA Methanesulfonic acid 70% thus offers an acidity level comparable to mineral acids such as sulfuric acid, although it is an organic acid. The methanesulfonate anion formed as a result of decomposition is a very weak base and forms salts that dissolve very well in water with its metal cations.
This point plays a critical role in the descaling performance of Lutropur MSA Methanesulfonic acid 70%. When reacting with calcium carbonate or calcium hydroxide, insoluble calcium sulfate (gypsum) is not formed, as in sulfuric acid; soluble calcium methanesulfonate occurs and does not leave a secondary layer of scale on the surface.
There is no chlorine, nitrogen or phosphorus present in the molecule. Therefore, Lutropur MSA Methanesulfonic acid 70% is defined as a halogen-free, nitrogen-free and phosphorus-free acid; it can replace phosphoric acid in detergent formulations with phosphate limitations.
Methanesulfonic acid is non-oxidizing. Unlike oxidizing acids such as nitric acid, Lutropur MSA Methanesulfonic acid 70% does not produce an oxidizing effect on metal surfaces, does not burn organic matter, and does not tend to oxidize sensitive ingredients such as dyestuffs or perfumes.
The carbon-sulfur bond of the sulfonic acid group is highly resistant to hydrolysis and thermal degradation. Therefore, Lutropur MSA Methanesulfonic acid 70% can remain stable for a long time in electroplating baths and high-temperature catalytic reactions.
Lutropur MSA Methanesulfonic acid 70% has the following properties at molecular and solution level:
Simple structure consisting of methyl group and sulfonic acid group
Very strong acid character
Complete solubility in water
High solubility of metal salts
Non-oxidizing and non-reducing behavior
Free of chloride, nitrogen and phosphorus
Resistance to hydrolysis and thermal degradation
Low vapor pressure
Easy biodegradability
PHYSICAL AND CHEMICAL PROPERTIES OF LUTROPUR MSA METHANESULFONIC ACID 70%
Lutropur MSA Methanesulfonic acid 70% is a colorless, clear, odorless liquid with a fluidity similar to water at room temperature. Since it contains approximately 70% active substance by weight, it should be considered as a concentrated acid solution and used accordingly.
General technical specifications:
Product Type: Organic Sulfonic Acid Solution
Manufacturer: BASF
Active ingredient: Methanesulfonic acid
Active concentration: Approx. 70% (by weight)
Physical form (23 °C): Liquid
Color: Colorless
Odor: Odorless
Molecular formula: CH₃SO₃H
Molecular weight: Approximately 96.10 g/mol
Density: Approx. 1.35 g/cm³
Water solubility: Mixes in all proportions
pH: Strongly acidic; increases with dilution
Vapor pressure: Approx. 4 hPa (20 °C)
Melting/freezing point: Approx. −54 °C
Boiling point: About 135 °C in supplier data
Flammability: Non-flammable
Autoignition: None
Effect on metals: Corrosive
Incompatible substances: Bases, oxidizing and chlorinating substances such as hypochlorite, metals susceptible to corrosion
Biodegradability: Easily degradable
BASF defines Lutropur MSA Methanesulfonic acid 70% as a high-purity and relatively low-corrosive strong acid with low vapor pressure and high dissolving capacity on many types of limescale. The low vapor pressure significantly reduces the acid vapor and fumes problem associated with hydrochloric acid; this is important for working environment comfort and equipment corrosion.
Lutropur MSA Methanesulfonic acid 70% releases heat when diluted with water. For this reason, dilution should always be done by slowly adding the acid to the water, the water should not be poured over the acid.
These values are for general technical demonstration purposes and have been compiled from different supplier documents. The exact specification should be based on the current BASF technical data sheet, safety data sheet and batch analysis certificate.
HOW LUTROPUR MSA METHANESULFONIC ACID 70% WORKS AT THE MOLECULAR LEVEL
Lutropur MSA Methanesulfonic acid 70% works by donating protons (H⁺) in aqueous media. Because Methanesulfonic acid dissociates almost completely in water, it imparts high proton activity to the solution and rapidly neutralizes basic residues such as carbonates, hydroxides, and oxides.
In descaling applications, Lutropur MSA Methanesulfonic acid 70% reacts with calcium carbonate to form soluble calcium methanesulfonate, water, and carbon dioxide. Because the salt has a high solubility, the limescale is removed from the surface and the tendency to resettle remains low. This behavior differs from salt-forming acids with low solubility, such as calcium sulfate.
In electroplating baths, Lutropur MSA Methanesulfonic acid 70% acts as both a free acid component that adjusts pH and conductivity and an anion source that ensures that metal ions are kept soluble as methanesulfonate salts. The methanesulfonate anion allows metals such as tin to dissolve at high concentrations.
In acid-catalyzed reactions such as esterification and alkylation, Lutropur MSA Methanesulfonic acid 70% accelerates the reaction by protonating the carbonyl oxygen or hydroxyl group. In the biodiesel process, where fatty acids are converted to methyl esters, this property is utilized in the esterification of free fatty acids.
Since Lutropur MSA Methanesulfonic acid 70% is not oxidizing, it does not produce unwanted oxidation by-products in any of these reactions. The product does not carry color or odor to the final product as it is also colorless and odorless.
Lutropur MSA Methanesulfonic acid 70% main functions at formulation level:
Dissolving lime and carbonate residues
Loosening metal oxide and rust stains
Neutralization of alkaline residues
pH lowering and adjustment
Being a source of free acids and anions in plating baths
Accelerating acid-catalyzed esterification and alkylation reactions
Providing lower corrosive effect compared to mineral acids
Support for phosphate-free formulations
IN WHICH SECTORS IS LUTROPUR MSA METHANESULFONIC ACID 70% USED?
Lutropur MSA Methanesulfonic acid 70% is a versatile acid used in the household and institutional cleaning, industrial cleaning, metal surface treatment, and chemical process sectors.
Major applications:
Descalers
Toilet and toilet cleaners
Bathroom and plumbing cleaners
Dishwasher rinse aid and cleaning formulations
Manual dishwashing products
Hard surface cleaners
CIP (clean-in-place) systems
Bottle and dairy equipment cleaning
Food plant and kitchen equipment descaling
Vehicle and transportation care products
Industrial cleaning and metal surface preparation
Electroplating (tin, tin, printed circuit)
Biodiesel and renewable fuel production
Esterification and alkylation catalysis
Neutralization and pH adjustment
Water treatment and descaling of equipment
In BASF's current product information, Lutropur MSA Methanesulfonic acid 70% is listed as an acid for home care and corporate/industrial cleaning formulations, vehicle and transportation care, and industrial cleaning applications. Metal surface treatment and bio-process uses are also indicated on BASF product pages.
Every sector expects different performance from Lutropur MSA Methanesulfonic acid 70%. In the cleaning industry, descaling speed, surface compatibility, odor and environmental profile come to the fore. In the coating industry, purity, chloride and metal impurities and bath stability are important. In chemical synthesis, catalytic activity, color and impurity profile are decisive.
USE OF LUTROPUR MSA METHANESULFONIC ACID 70% IN CLEANING, DESCALING AND CIP APPLICATIONS
The most common use of Lutropur MSA Methanesulfonic acid 70% is acidic cleaning products. Mineral-based soils such as limescale, hard water deposits, soap residues, metal oxides and urinary stones dissolve in an acidic environment. Lutropur MSA Methanesulfonic acid 70% performs this function with its strong acid strength, but does not create strong vapors and odors like hydrochloric acid.
In toilet bowl and sanitary cleaners, Lutropur MSA Methanesulfonic acid 70% provides limescale and urinary stone dissolving performance. The low vapor pressure reduces the formation of unpleasant acid vapors during use. Since the product is odorless, the effect of the perfume in the formulation is preserved. Viscous gel cleaners can be prepared in combination with thickening polymers (e.g. xanthan).
In dishwasher cleaners and rinse aids, Lutropur MSA Methanesulfonic acid 70% helps to dissolve the limescale layer inside the machine. BASF states that the product can be used in areas such as machine and manual dishwashing, hard surface cleaning, CIP and OPC cleaning, bottle and dairy equipment cleaning.
In CIP systems in the food and beverage industry, Lutropur MSA Methanesulfonic acid 70% can be evaluated at the acidic stage, which is used to remove milk stone, calcium carbonate and other mineral deposits. Lutropur products based on methanesulfonic acid are among the solutions recommended by BASF for the cleaning of calcium carbonate deposits formed after nixtamalization in starch and corn processing plants.
Lutropur MSA Methanesulfonic acid 70% is usually used in combination with surfactant, chelating agent, solvent and thickener. It is necessary to select surfactants that are stable in acidic environment; therefore, acid stability and cloud point should be controlled in the selection of anionic or nonionic surfactant.
In car wash and transportation maintenance, Lutropur MSA Methanesulfonic acid 70% helps to dissolve road dirt, mineral stains and alkaline residues. On sensitive surfaces such as aluminum, painted surfaces and plastics, concentration and contact time should be determined by compatibility tests.
USE OF LUTROPUR MSA METHANESULFONIC ACID 70% IN ELECTROPLATING AND METAL SURFACE TREATMENT APPLICATIONS
Electroplating is the second largest use of Lutropur MSA Methanesulfonic acid 70%. BASF states that the product is used in electroplating baths in the production of printed circuit boards and tinplate (tinned sheet). BASF's electroplating product lines include nickel, tin, zinc, copper and alloy plating processes.
In methanesulfonate-based tin baths, Lutropur MSA Methanesulfonic acid adjusts the pH and conductivity of the bath as a 70% free acid, keeps tin ions soluble and contributes to the stability of the bath. The high solubility of methanesulfonate salts allows rapid plating at high current densities.
Lutropur MSA Methanesulfonic acid 70% can also be used in processes such as oxide and rust removal, pickling, and acid activation in the pre-coating surface preparation stages. Chloride-free reduces the risk of pitting corrosion in chloride-sensitive substrates.
The purity, chloride and metal impurity level and color value of the Lutropur MSA Methanesulfonic acid 70% product to be used in the coating industry are important. Trace amounts of impurities can affect coating quality and gloss. For this reason, the batch analysis certificate should be examined before adding to the bath, and a pilot bath trial should be performed in critical applications.
Acid concentration should be monitored regularly by titration in bath maintenance, and Lutropur MSA Methanesulfonic acid 70% additions should be made according to the target free acid range of the bath. Since methanesulfonic acid is non-evaporative, losses mostly occur through transport and splashing.
USE OF LUTROPUR MSA METHANESULFONIC ACID 70% IN BIODIESEL AND CHEMICAL SYNTHESIS APPLICATIONS
Lutropur MSA Methanesulfonic acid 70% is used in chemical synthesis as a strong acid catalyst and in the production of biodiesel. BASF offers the product to biodiesel producers as a substitute for harsher chemicals such as sulfuric acid in processes such as esterification and neutralization of free fatty acids.
In biodiesel production, waste oil and feedstocks with high free fatty acids are first treated by acid-catalyzed esterification. Lutropur MSA Methanesulfonic acid 70% accelerates the conversion of fatty acids to methyl esters with methanol at this stage. Methanesulfonic acid's non-oxidizing nature can help preserve the color of the product and limit side reactions.
In the reaction, water in the medium affects the equilibrium of esterification. Since Lutropur MSA Methanesulfonic acid 70% is an aqueous solution, the effect of water content on esterification efficiency should be evaluated in the process design. For water-sensitive processes, BASF's higher concentration grades (e.g., Lutropur MSA-XP, approx. 94%) or anhydrous grade may be preferred.
In addition to esterification and alkylation, Lutropur MSA Methanesulfonic acid 70% can also be used in acid-catalyzed condensation, etherification, and polymerization reactions. After the reaction, the acid is removed by neutralizing it with alkali, and the methanesulfonate salt formed is mostly water-soluble, so it can be separated by washing.
In drug synthesis, methanesulfonic acid is an acid that is also used in the preparation of methanesulfonate (mesylate) salts of based compounds. Such applications require a specially documented product that conforms to drug quality and the conformity of Lutropur MSA Methanesulfonic acid 70% commercial quality must be further verified.
IS LUTROPUR MSA METHANESULFONIC ACID 70% USED IN FOOD, COSMETIC AND PHARMACEUTICAL APPLICATIONS?
Lutropur MSA Methanesulfonic acid 70% is a product offered by BASF for home care, industrial and institutional cleaning, and industrial chemistry applications. It is not used directly as a food additive and does not have an E number.
Use in food facilities, commercial kitchens and CIP systems does not imply the addition of Lutropur MSA Methanesulfonic acid 70% to food. This expression refers to equipment and surface cleaning only and the requirement for rinsing, residue limits and local legislation should be considered separately in the final formulation.
In cosmetics, methanesulfonic acid may be listed with the name INCI (Methanesulfonic Acid) as a pH adjuster. However, the cosmetic suitability of Lutropur MSA Methanesulfonic acid 70% commercial grade should not be assumed without a separate supplier document. If cosmetic use is considered, purity, safety assessment and regulatory requirements should be confirmed with the supplier.
In the pharmaceutical field, Lutropur MSA Methanesulfonic acid 70% is not offered as an active ingredient or pharmaceutical excipient. Suitable quality, impurity profile and documentation for use in drug synthesis must be verified separately with the manufacturer.
INDUSTRIAL APPLICATIONS OF LUTROPUR MSA METHANESULFONIC ACID 70%
Lutropur MSA Methanesulfonic acid 70% works as an acid, catalyst, and pH adjuster in industrial formulations and processes.
Main tasks:
Industrial limescale and mineral deposit removal
Heat exchanger, pipe and tank descaling
CIP and OPC cleaning programs
Metal surface preparation and pickling
Use as a free acid in electroplating baths
Printed circuit board manufacturing
Tinplate and pewter sheet production
Biodiesel esterification catalysis
Neutralization and pH adjustment
Water treatment equipment cleaning
Acid catalyst in chemical synthesis
Phosphoric acid alternative in phosphate-free formulations
The following parameters should be evaluated in the industrial use of Lutropur MSA Methanesulfonic acid 70%:
Active acid concentration
Density
Target pH
Chloride and metal impurities
Color
Application temperature
Contact time
Lime type and thickness
Metal and plastic compatibility
Surfactant compatibility
Foam profile
Rinseability
Wastewater pH management
Ventilation requirement
TDS
SDS
COA
Sustainability statement
WHAT PROBLEMS CAN LUTROPUR MSA METHANESULFONIC ACID 70% SOLVE?
Difficulty removing limescale deposits
Lutropur MSA Methanesulfonic acid 70% can help dissolve calcium carbonate layers effectively with its strong acid power and soluble salt-forming ability.
High corrosive effect of mineral acids
Lutropur MSA Methanesulfonic acid 70% exhibits a lower corrosive effect than mineral acids such as hydrochloric and sulfuric acid, according to BASF. However, material compatibility should still be tested as it remains corrosive to metals.
Acid vapor and unpleasant odor
Due to its low vapor pressure and odorless nature, Lutropur MSA Methanesulfonic acid 70% reduces discomfort caused by steam and odor.
Phosphate formulation prohibitions and environmental requirements
Lutropur MSA Methanesulfonic acid 70% is phosphorus-free and can be used as a substitute for phosphoric acid as it is easily biodegradable.
Sulfate-induced scale precipitation
Calcium sulfate precipitation may occur when sulfuric acid is used. Lutropur MSA Methanesulfonic acid may reduce this risk because it forms 70% soluble salt.
Side effects of oxidizing acids
In systems where oxidizing acids like nitric acid damage paints, perfumes, or sensitive ingredients, Lutropur MSA Methanesulfonic acid 70% provides a non-oxidizing option.
Chloride-induced pitting corrosion
In systems where chloride-containing acids cause pitting corrosion in stainless steel, Lutropur MSA Methanesulfonic acid can be advantageous as it is 70% chloride-free.
Metal salt solubility problem in plating bath
Due to the high solubility of methanesulfonate salts, Lutropur MSA Methanesulfonic acid 70% can be used in baths with high metal concentration.
Formation of color and by-product in acid-catalyzed reaction
Due to its non-oxidizing nature, Lutropur MSA Methanesulfonic acid 70% can help provide cleaner result in these reactions.
It should not be assumed that every quality and every process condition will give the same result. Actual performance should be verified by pilot and application trials.
THINGS TO CONSIDER WHEN USING LUTROPUR MSA METHANESULFONIC ACID 70%
Lutropur MSA Methanesulfonic acid 70% is a strong acid solution and is corrosive to the skin, eyes and metals. The current BASF safety data sheet should be reviewed before use.
Usage considerations:
During dilution, acid should always be added slowly to water.
Dilution releases heat; mixing should be controlled.
The product should not be mixed with base, hypochlorite and other chlorinated substances.
Material compatibility should be tested on metal equipment.
Concentration and contact time should be limited on aluminum, galvanized and sensitive surfaces.
It should not be used on surfaces containing baking soda such as marble, natural stone and joints.
Acid-stable surfactant and preservative should be selected in the formulation.
The acid stability of thickening polymers should be checked.
The compatibility of perfumes and dyestuffs with acid should be tested.
Chloride and metal impurities should be monitored in the plating bath.
The BASF article number must be verified 30096873 when sourcing products.
If there are EU Ecolabel and Nordic Swan requirements, a supplier certificate must be obtained.
Waste acid should not be discharged to the drain without neutralization.
TDS, SDS and COA should be examined.
Appropriate chemical-resistant gloves, goggles, and face protection should be used when handling Lutropur MSA Methanesulfonic acid 70%. Adequate ventilation should be provided in confined spaces. The low vapor pressure of the product does not eliminate the need for protective equipment.
Even diluted application solutions may cause skin and eye irritation depending on the way they are used. For this reason, the labels and instructions for use of ready-made products containing Lutropur MSA Methanesulfonic acid 70% should be clearly prepared.
INITIAL FORMULATION APPROACHES FOR LUTROPUR MSA METHANESULFONIC ACID 70%
The following examples are laboratory starter formulations prepared to illustrate how Lutropur MSA Methanesulfonic acid 70% can be used in cleaning formulations. These are not verified commercial prescriptions.
All percentages are percentages relative to the weight of the final mixture, with each sample totaling 100%. The percentages are given over Lutropur MSA Methanesulfonic acid 70% solution (i.e. 70% active acid in the product is not included, the solution itself is taken into account).
EXAMPLE 1: VISCOUS TOILET / SANITARY INSTALLATION CLEANER WITH LUTROPUR MSA METHANESULFONIC ACID 70%
Objective: To develop a gel toilet bowl cleaner that dissolves lime and urinary stones and adheres to the surface.
Starting components:
Deionized water: 85.2%
Lutropur MSA Methanesulfonic acid 70%: 10.0%
Alcohol ethoxylate nonionic surfactant: 2.0%
Amine oxide surfactant: 1.5%
Xanthan gum: 0.8%
Acid stable preservative: 0.2%
Perfume: 0.3%
Total: 100%
Application approach:
It is taken into the water bowl and the xanthan gum is distributed so that it does not clump.
Surfactants are added by mixing.
Lutropur MSA Methanesulfonic acid 70% is added slowly and stirring.
Preservative and perfume are added last.
Viscosity, pH and phase stability are checked.
Descaling performance and surface adhesion time are tested.
Lutropur MSA Methanesulfonic acid 70% level is comparable to 7% / 10% / 12%.
EXAMPLE 2: LUTROPUR MSA LIME SOLVENT CONCENTRATE WITH METHANESULFONIC ACID 70%
Purpose: To prepare concentrated acidic cleaner to be used in dishwasher, water heater and equipment lime cleaning.
Starting components:
Deionized water: 80.0%
Lutropur MSA Methanesulfonic acid 70%: 15.0%
Low foam nonionic surfactant: 2.5%
Hydrotrope: 1.5%
Corrosion inhibitor: 1.0%
Total: 100%
Application approach:
Hydrotrope and corrosion inhibitor are added to the water and dissolved.
Low foaming surfactant is added by stirring.
Lutropur MSA Methanesulfonic acid 70% is added slowly in a controlled manner.
The product is mixed until homogenized.
Dissolving time is measured in standard lime-coated samples.
Compatibility is tested on stainless steel, plastics and gaskets.
The dilution of use is comparable to 5% / 10% / 20%.
EXAMPLE 3: LUTROPUR MSA ACID HARD SURFACE CLEANER WITH METHANESULFONIC ACID 70%
Objective: To develop a dilute, ready-to-use acidic surface cleaner that removes hard water stains and limescale film. This example is adapted from the initial approach in the fact sheet published by BASF.
Starting components:
Deionized water: 91.74%
Lutropur MSA Methanesulfonic acid 70%: 1.75%
Chelating agent (MGDA-based, liquid): 3.81%
Alcohol ethoxylate nonionic surfactant: 1.2%
Butyl diglycol (solvent): 1.5%
Total: 100%
Application approach:
It is taken into the container of water and the chelating agent is added.
By adding Lutropur MSA Methanesulfonic acid 70%, the pH is drawn to the target range.
Surfactant and solvent are added.
The mixture is homogenized.
Cleaning performance is tested with calcium stearate/limescale stains on ceramic tiles.
It is checked whether there are any stains or films left on the surface.
ALTERNATIVES AND COMPARISON OF LUTROPUR MSA METHANESULFONIC ACID 70%
When choosing an alternative for Lutropur MSA Methanesulfonic acid 70%, acid strength alone is not sufficient. Corrosive effect, vapor and odor, oxidizing property, salt solubility, biodegradability, phosphorus and chlorine content and cost should be evaluated together.
LUTROPUR MSA METHANESULFONIC ACID 70% AND SULFURIC ACID
Sulfuric acid is a very strong and low-cost mineral acid. It can have an oxidizing and drying effect in concentrated form. Since it forms calcium sulfate that is insoluble with calcium, it can cause secondary precipitation on the surface during lime cleaning.
Lutropur MSA Methanesulfonic acid 70%, on the other hand, is non-oxidizing and forms soluble salt. BASF states that the product is less corrosive than sulfuric acid. In contrast, sulfuric acid is generally less expensive, so cost and performance should be considered together.
LUTROPUR MSA METHANESULFONIC ACID 70% AND HYDROCHLORIC ACID
Hydrochloric acid is a quick and inexpensive option for descaling, but it emits acid vapor and fumes, can cause chloride-induced corrosion in stainless steel, and poses a risk of chlorine gas release when it comes into contact with hypochlorite.
Lutropur MSA Methanesulfonic acid 70% has a low vapor pressure, is chloride-free and produces much less odor. Therefore, it can be considered as a safer option in indoor environments and stainless steel equipment.
LUTROPUR MSA METHANESULFONIC ACID 70% AND PHOSPHORIC ACID
Phosphoric acid is an acid widely used in cleaning stainless steel and aluminum and can provide a passivation effect on the surface. However, it contains phosphorus and can contribute to the problem of eutrophication in wastewater; there is a phosphate limitation in some areas.
Lutropur MSA Methanesulfonic acid 70% is phosphorus-free and easily biodegradable. BASF offers the product as a phosphoric acid alternative. If phosphate-specific effects such as passivation are required, performance testing should be performed.
LUTROPUR MSA METHANESULFONIC ACID 70% AND CITRIC ACID
Citric acid is a weak and organic acid; it is gentler on the environment and skin, and also provides a chelating effect. However, its descaling speed and low pH performance are limited compared to strong acids.
Lutropur MSA Methanesulfonic acid 70% provides a much lower pH and descales faster. In practice, the two products can also be used together; Lutropur MSA Methanesulfonic acid 70% gives the dissolving power, while citric acid provides chelation support.
LUTROPUR MSA METHANESULFONIC ACID 70% AND FORMIC ACID/ACETIC ACID
Formic and acetic acid are organic acids and have distinct pungent odor. Acetic acid is a weak acid; formic acid is stronger but still creates an odor and volatility problem.
Lutropur MSA Methanesulfonic acid is 70% odorless and low volatility; therefore, it does not cause odor problems in closed and food-related spaces. Since it is a stronger acid, the usage concentration can be kept lower.
LUTROPUR MSA METHANESULFONIC ACID 70% AND SULFAMIC ACID
Sulfamic acid is a solid acid and is widely used in descalers in powder form. It can hydrolyze into sulfuric acid in hot waters and requires a dissolving step because it is a solid.
Since Lutropur MSA Methanesulfonic acid is a 70% aqueous solution, it can be dosed directly and is easily used in liquid formulations. Thanks to its hydrolysis-resistant structure, it is more stable at high temperature.
LUTROPUR MSA METHANESULFONIC ACID 70% AND OTHER METHANESULFONIC ACID GRADES OF BASF
BASF also offers anhydrous methanesulfonic acid (Lutropur MSA 100) and grades with a concentration of approx. 94% (Lutropur MSA-XP) in the same family. Higher concentration grades are advantageous in water-sensitive processes and where transportation costs are significant.
Lutropur MSA Methanesulfonic acid 70%, on the other hand, is a practical option in cleaning formulations and general industrial use thanks to its easy-to-dose aqueous solution and low freezing point.
COMPARISON SUMMARY
In terms of soluble salt formation, low vapor pressure, non-oxidizing, and no chlorine and phosphorus, Lutropur MSA Methanesulfonic acid 70% offers distinct advantages over sulfuric, hydrochloric, and phosphoric acids. In terms of cost, mineral acids are generally less expensive; citric and sulfamic acid are gentle options for the environment and safety, but performance is limited.
In the selection of alternatives, the targeted lime type, surface, safety requirement, environmental legislation and total cost should be evaluated together; laboratory and application trials should be carried out for each substitute.
QUALITY CONTROL AND PURCHASING CRITERIA FOR LUTROPUR MSA METHANESULFONIC ACID 70%
When purchasing Lutropur MSA Methanesulfonic acid 70%, only the product name and price comparison are not enough. Especially in coating and catalytic applications, the level of purity, chloride and metal impurities can directly affect the results.
Recommended information to review before purchasing:
Full trade name and manufacturer (BASF)
BASF article number 30096873
CAS No 75-75-2
EC No 200-898-6
Methanesulfonic acid concentration
Density
Appearance and color
Free sulfuric acid and sulfate content
Chloride content
Metal impurities
Water content
Biodegradability statement
EU Ecolabel evaluation statement
Nordic Swan eligibility
Batch number
Production date
Shelf life
Packaging type and net quantity
Information of origin
TDS
SDS
COA
The COA indicates the actual analysis results of a given batch of Lutropur MSA Methanesulfonic acid 70%. The TDS contains the standard specifications of the product, while the SDS contains safe handling, handling, and emergency information. These documents are not interchangeable, but should be reviewed together.
In case of a change of supplier, Lutropur MSA Methanesulfonic acid 70% should not be replaced with products with similar names or different concentrations. Methanesulfonic acid is offered in different concentrations and different purity levels; therefore, one-to-one compatibility with the 70% BASF Lutropur product should be checked.
STORAGE AND HANDLING OF LUTROPUR MSA METHANESULFONIC ACID 70%
Lutropur MSA Methanesulfonic acid 70% should be stored in sealed, clean and acid-resistant packaging. The BASF safety data sheet recommends that the packaging be kept tightly closed, in a dry and cool place.
The storage area should be kept separate from base, hypochlorite and corrosion-sensitive metals. Plastics such as polyethylene, polypropylene, PVDF or equipment with suitable coating are preferred in storage tanks and pipelines for Lutropur MSA Methanesulfonic acid 70%; material compatibility should be verified with supplier information.
The product is resistant to freezing at low temperatures, but the possibility of solidification at very low temperatures should be checked with the supplier's data. It should be protected from sunlight and excessive heat.
Only acid-resistant pumps, hoses and fittings should be used during transfer. FIFO should be applied and batch traceability should be ensured.
In carriage, Lutropur MSA Methanesulfonic acid 70% is treated as a corrosive liquid under UN 3265, Class 8, Packing Group II. The current classification must be verified from the supplier's SDS document.
In case of spills, the environment should be ventilated, appropriate personal protective equipment should be used, the spill should be collected with non-flammable absorbent material or diluted and neutralized in a controlled manner. The product should be prevented from reaching sewers and surface waters.
LUTROPUR MSA METHANESULFONIC ACID 70% SAFETY INFORMATION
Lutropur MSA Methanesulfonic acid 70% is a corrosive product. The BASF safety data sheet states that the product directly abrads the skin and eyes, not irritates them. Supplier SDS documents often state severe skin burns and eye damage (H314) and may corrode metals (H290); some grades may also contain statements of ingestion and skin contact hazard and respiratory irritation.
Chemical-resistant gloves, a face shield or goggles against acid splashes, and appropriate work clothing should be used when handling Lutropur MSA Methanesulfonic acid 70%. The work area should be equipped with an eye shower and an emergency shower. If ventilation is inadequate, appropriate respiratory protection should be used.
In case of skin contact, clothing contaminated with Lutropur MSA Methanesulfonic acid 70% should be removed immediately and the skin should be washed with plenty of water for a long time. If there are signs of burns, medical attention should be sought.
In case of eye contact, the eyes should be washed with plenty of water for at least 15 minutes, including under the eyelids, contact lenses should be removed if they can be easily removed, and an ophthalmologist should be consulted immediately.
If swallowed, vomiting should not be induced, the mouth should be rinsed with water and emergency medical attention should be sought. Nothing should be given by mouth to an unconscious person.
If steam is inhaled, the person should be taken to fresh air and rested. If coughing, shortness of breath or burning sensation persists, medical attention should be sought. The BASF SDS document states that there is no known specific antidote and symptomatic treatment should be administered.
Lutropur MSA Methanesulfonic acid 70% is not flammable, but other materials in its environment may burn during a fire. Hydrogen gas release is possible as a result of contact with metals; therefore, it should not be stored in metal containers and gas accumulation should be prevented in closed spaces.
The product is classified as easily biodegradable. Nevertheless, concentrated Lutropur MSA Methanesulfonic acid 70% should not be left uncontrolled in the environment, but the waste acid should be neutralized and disposed of in accordance with local legislation. The exact hazard statements, personal protective equipment and transport classification should be determined according to the current BASF SDS.
WHAT TO CONSIDER WHEN BUYING LUTROPUR MSA METHANESULFONIC ACID 70%
First of all, the purpose for which Lutropur MSA Methanesulfonic acid 70% will be used should be determined.
Home and institutional descaler?
CIP and food plant cleaning?
Electroplating bath?
Biodiesel or synthesis catalyst?
Phosphate-free cleaning formulation?
These parameters determine the purity, packaging, and documentation level required for Lutropur MSA Methanesulfonic acid 70%.
What needs to be clarified before ordering:
Exact Lutropur MSA Methanesulfonic acid 70% requirement
BASF article number 30096873
Methanesulfonic acid concentration
Chloride and metal impurity limits
Color requirement
Usage temperature and process type
Packaging type (IBC, drum, drum)
Estimated order quantity
EU Ecolabel and Nordic Swan document requirement
Need for TDS, SDS and COA
Lutropur MSA Methanesulfonic acid 70% price should not be evaluated only by kg price. The product is 70% active and may be more expensive than mineral acids; however, factors such as corrosion reduction, equipment life, safety, odor and wastewater load can change the total cost.
If a cheaper acid requires more equipment corrosion, longer rinsing time, or additional precautions, the total operating cost may increase. Therefore, Lutropur MSA Methanesulfonic acid 70% offers should be compared in terms of total process cost.
LUTROPUR MSA METHANESULFONIC ACID 70% SUPPLY FROM ATAMAN KIMYA
Lutropur MSA Methanesulfonic acid 70% is a high-purity easily biodegradable organic acid solution offered by BASF, used in descaling, plating baths, and acid-catalyzed processes.
Companies wishing to obtain information about the supply of Lutropur MSA Methanesulfonic acid 70% from Ataman Kimya can request information on product suitability, current supply conditions, packaging options and price quotation by sharing their final applications, target usage concentration, operating temperature, purity and documentation needs.
Before placing an order, the stock status, manufacturer, origin, product number, packaging, concentration and technical specifications of the Lutropur MSA Methanesulfonic acid 70% product should be confirmed with Ataman Kimya.
Sharing the following information in the request for proposal facilitates accurate evaluation:
Use sector and end application
Cleaning/electroplating/biodiesel/synthesis application
Target usage level
Operating Temperature
Chloride and metal impurity requirement
EU Ecolabel requirement
Nordic Swan requirement
Estimated order quantity
Packaging preference
The need for TDS
The need for SDS
The need for COA
FREQUENTLY ASKED QUESTIONS ABOUT LUTROPUR MSA METHANESULFONIC ACID 70%
What is Lutropur MSA Methanesulfonic acid 70%?
Lutropur MSA Methanesulfonic acid 70% is a colorless and odorless organic acid solution produced by BASF, containing approximately 70% methanesulfonic acid by weight.
Who is the manufacturer?
The manufacturer of Lutropur MSA Methanesulfonic acid 70% is BASF.
What is the BASF article number?
The BASF article number for Lutropur MSA Methanesulfonic acid 70% is 30096873.
What is a CAS number?
The CAS number for the active ingredient in Lutropur MSA Methanesulfonic acid 70% is 75-75-2.
What is an EC/EINECS number?
The EC/EINECS number for Lutropur MSA Methanesulfonic acid 70% is 200-898-6.
What is its chemical formula?
The formula of the acid in Lutropur MSA Methanesulfonic acid 70% is CH₃SO₃H, and the molecular weight is approximately 96.10 g/mol.
What is active ingredient concentration?
Lutropur MSA Methanesulfonic acid 70% contains approximately 70% active acid by weight.
What is its density?
The density of Lutropur MSA Methanesulfonic acid 70% solution is approximately 1.35 g/cm³.
What is its physical form?
Lutropur MSA Methanesulfonic acid 70% is a colorless, odorless and clear liquid.
Is it soluble in water?
Lutropur MSA Methanesulfonic acid 70% is miscible with water in any proportion.
Is it an oxidizing acid?
Lutropur MSA Methanesulfonic acid 70% is not classified as an oxidizer due to its structure.
Does it contain chlorine?
Lutropur MSA Methanesulfonic acid 70% is produced without the use of chlorine and is not a chloride-containing acid.
Does it contain phosphorus?
Lutropur MSA Methanesulfonic acid 70% does not contain phosphorus, so it can be used in phosphate-free formulations.
Is it easily biodegradable?
Yes. Lutropur MSA Methanesulfonic acid 70% is in the easily biodegradable class according to the OECD 301 A method.
Is it less corrosive than mineral acids?
According to BASF, Lutropur MSA Methanesulfonic acid 70% exhibits less corrosive effects than hydrochloric and sulfuric acid. Still, material compatibility should be tested because it is corrosive to metals.
Can it be used in descaler?
Yes. Lutropur MSA Methanesulfonic acid 70% is used to dissolve calcium carbonate deposits in descalers and toilet bowl cleaners.
Is it used in CIP systems?
Lutropur MSA Methanesulfonic acid 70% is recommended by BASF as the acid that can be used in CIP and OPC cleaning, bottle and dairy equipment cleaning.
Is it used in electroplating?
Yes. Lutropur MSA Methanesulfonic acid 70% is used in electroplating baths in the manufacture of tinplate and printed circuits.
Is it used in biodiesel?
Lutropur MSA Methanesulfonic acid 70% can be used as an alternative to sulfuric acid in processes such as esterification catalysis in biodiesel production.
Is food an additive?
Lutropur MSA Methanesulfonic acid 70% is not a direct food additive and does not have an E number.
Is it used in cosmetics?
Lutropur MSA Methanesulfonic acid 70% is offered for cleaning and industrial use as the main location. Cosmetic suitability must be verified with separate documents.
Which materials should not be used on?
Lutropur MSA Methanesulfonic acid 70% should not be used on carbonate-containing surfaces such as marble and natural stone, and on corrosion-sensitive metals without careful testing.
Can it be mixed with hypochlorite?
There is a risk of toxic gas release when Lutropur MSA Methanesulfonic acid 70% is mixed with chlorinated and hypochlorite products.
How should it be diluted?
Lutropur MSA Methanesulfonic acid 70% should always be added slowly to the water, the water should not be poured over the acid.
How should it be stored?
Lutropur MSA Methanesulfonic acid 70% should be stored in tightly closed, acid-resistant packaging, in a cool and dry place, separate from bases and metals.
What is a transport class?
Lutropur MSA Methanesulfonic acid 70% is usually transported as UN 3265, Class 8, Packing Group II.
What should be considered in terms of security?
Lutropur MSA Methanesulfonic acid 70% is corrosive; chemically resistant gloves, eye and face protection should be used.
Is it eligible for the EU Ecolabel?
BASF states that the EU Ecolabel assessment statement is available for Lutropur MSA Methanesulfonic acid 70% and the conformity information for Nordic Swan.
What documents should be required when purchasing?
For Lutropur MSA Methanesulfonic acid 70%, TDS, SDS and COA are the basic documents; sustainability statements can also be requested if necessary.
How does the price vary?
The price of Lutropur MSA Methanesulfonic acid 70% varies depending on packaging, order quantity, origin, raw material costs, and market conditions.
What are the alternatives?
Products such as sulfuric, hydrochloric, phosphoric, citric, and sulfamic acid can be alternatives for Lutropur MSA Methanesulfonic acid 70%; however, each has a different corrosion, odor, and environmental profile.
LUTROPUR MSA METHANESULFONIC ACID 70% – TECHNICAL SUMMARY
Lutropur MSA Methanesulfonic acid 70% is a colorless, odorless, and easily biodegradable organic acid solution offered by BASF containing approximately 70% methanesulfonic acid by weight.
The chemical formula of the active substance in Lutropur MSA Methanesulfonic acid 70% is CH₃SO₃H, CAS number is 75-75-2, EC number is 200-898-6, and molecular weight is approximately 96.10 g/mol. The BASF product number is 30096873.
Lutropur MSA Methanesulfonic acid 70% is a solution with a density of approximately 1.35 g/cm³ and is miscible with water in any ratio. Its low vapor pressure and non-oxidizing structure are important features.
Lutropur MSA Methanesulfonic acid 70% is produced without chlorine, using BASF's patented continuous process, and does not contain phosphorus. For this reason, it is considered as an alternative acid in cleaning formulations with phosphate limitations.
Lutropur MSA Methanesulfonic acid 70% is used to descale in cleaning products, to remove mineral deposits in CIP systems, to work as an acid component in electroplating baths, and as an acid catalyst in processes such as biodiesel.
Lutropur MSA Methanesulfonic acid 70% reduces the problem of sulfate precipitation as it forms salts with high solubility with metals such as calcium and has less corrosive effects compared to mineral acids.
Lutropur MSA Methanesulfonic acid 70% is a corrosive product. Dilution should always be done by adding the acid to water, chemically resistant gloves and eye protection should be used, and should not be mixed with base and hypochlorite.
Lutropur MSA Methanesulfonic acid 70% should be stored in tightly closed, acid-resistant packaging, in a cool, dry place and transported under UN 3265, Class 8, Packaging Group II.
When purchasing Lutropur MSA Methanesulfonic acid 70%, the BASF article number, concentration, chloride and metal impurities, packaging, TDS, SDS, COA and sustainability documents must be verified together.
Companies planning to procure Lutropur MSA Methanesulfonic acid 70% from Ataman Kimya are encouraged to confirm the current product and offer conditions by sharing their final application, usage concentration, operating temperature, and documentation needs.
