Methane Sulfonic Acid Cleaning Composition for Limescale Removal
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Solution Overview
Problem
Current cleaning compositions for removing limescale and soap scum from bathroom surfaces are often corrosive and can damage surfaces, and they struggle to effectively remove both mineral and organic deposits without causing aesthetic defects.
Innovation Solution
A cleaning composition containing short chain alkane sulfonic acids, such as methane sulfonic acid, which is effective in removing limescale and soap scum without significant corrosion or aesthetic damage, and can be used in various applications including bathroom fixtures and dishwashing equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If phosphoric acid is used to remove limescale, then limescale removal effectiveness is improved, but surface corrosion and aesthetic damage increase
Solution Approach 1:
The patent changes the chemical parameter from phosphoric acid to methane sulfonic acid, which has different corrosivity characteristics. Methane sulfonic acid provides effective limescale removal through chelation and dissolution mechanisms while exhibiting lower corrosivity to metal surfaces and decorative coatings, thus resolving the contradiction between removal effectiveness and surface protection
Solution Approach 2:
The patent employs a biodegradable acid composition that breaks down into harmless byproducts, effectively replacing persistent corrosive acids. The short-chain sulfonic acid is designed to be environmentally benign and less damaging to surfaces, providing a disposable-friendly alternative that reduces long-term surface degradation
2Productivity
If traditional acidic compositions are used to remove limescale, then mineral deposit removal is improved, but soap scum removal is hindered due to interference
Solution Approach 1:
The patent creates a cleaning composition with multi-functional capability by selecting methane sulfonic acid as the active ingredient. This acid effectively dissolves both mineral deposits (limescale) and organic soils (soap scum) through its chelating properties and ability to break down organic matter, thus providing universal cleaning action against multiple soil types that traditional phosphoric acid-based compositions could not address simultaneously
Solution Approach 2:
The patent formulates a composite cleaning composition that combines methane sulfonic acid with surfactants and other auxiliary ingredients. This composite formulation enhances the overall cleaning performance, allowing the composition to tackle both inorganic limescale and organic soap scum deposits effectively, overcoming the limitations of single-function acidic cleaners
3Productivity
If high concentrations of active ingredients are used to remove both limescale and soap scum, then cleaning effectiveness is improved, but corrosion and environmental impact increase
Solution Approach 1:
The patent changes the chemical nature of the active ingredient to methane sulfonic acid, which has higher cleaning efficiency per unit concentration compared to phosphoric acid. This allows effective removal of both limescale and soap scum at lower concentrations, thereby reducing environmental impact and corrosivity while maintaining or improving cleaning performance
Solution Approach 2:
The patent employs a biodegradable short-chain sulfonic acid that breaks down rapidly in the environment, replacing persistent strong acids. This allows the use of sufficient active ingredient concentration for effective cleaning while the substance quickly degrades into harmless byproducts, minimizing environmental accumulation and long-term harmful effects
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition effectively removes limescale and soap scum with reduced corrosion and aesthetic impact, requiring less active ingredient compared to traditional phosphoric acid-based solutions, while being environmentally friendly and biodegradable.
Implementation Method 1
Limescale deposits are usually removed using an acidic composition that can dissolve away the mineral deposit
Implementation Method 2
The cleaning composition includes about 0.1 to about 20 wt % of a surfactant
Data Source
AI summary
A cleaning composition including an acid component is provided, along with methods for using the composition to remove soil from hard surfaces. The concentrate cleaning composition includes between about 1 and about 70 wt % of methane sulfonic acid, about 0.1 to about 15 wt % of a surfactant component, up to about 90% of a solvent and other adjuvants.