A colorless liquid in a standard 1-liter bottle, with a slightly fruity, sweetish smell, dissolving in seconds what other products take minutes to dissolve. Acetone, also known as propanone, dimethyl ketone, or 2-propanone, is an organic compound and the simplest ketone. Anyone who knows this substance only from the bathroom - as the unavoidable companion of nail polish removers - greatly underestimates it. Acetone is one of the world's most widely used chemical helpers: in laboratories, doctors' offices, electronics workshops, on construction sites, and at home on the desk.
In this article, you will learn everything you need to know about acetone as a solvent: from its fascinating history and most important applications to practical tips for safe use. And you will discover that this unassuming solvent has literally helped write human history.
What is acetone? Chemistry explained clearly
Acetone has the chemical formula (CH₃)₂CO and is the simplest ketone. With its carbonyl group and two methyl groups, it is an important organic solvent in industry, households, and laboratories. That may sound rather dry at first - but behind this simple molecular structure lies an extraordinary property: acetone has a rare dual solvency. It can dissolve both polar and nonpolar substances - a capability that many other solvents do not offer in this combination.
Acetone is a colorless, low-viscosity liquid with a characteristic odor; it is highly flammable and forms an explosive mixture with air. Its boiling point at normal pressure is 56 °C. It is miscible with water and most organic solvents in all proportions. This combination - strong solvency, complete water solubility, and rapid evaporation - makes acetone a true all-rounder that no other solvent can fully replace in this combination. Due to its high vapor pressure, it also evaporates extremely quickly.
Where does acetone occur in nature?
Anyone who thinks acetone is a purely industrial product is mistaken. The human body produces acetone as part of fat metabolism. It is also produced during the fermentation of fruit and is a component of many plant-based flavor compounds. Small traces can also be detected in milk and certain types of wood. The molecule is therefore anything but foreign to the body - it is part of our everyday biochemistry, long before we consciously use it.
How Is Acetone Produced Industrially?
Today, acetone is produced on an industrial scale from benzene and propene using the cumene hydroperoxide process, also known as the Hock phenol synthesis. It has thus become one of the most important solvents in the paint and polymer industries. Several million tons are produced worldwide every year - a clear sign of how indispensable this substance is to the modern economy.
From Discovery to the First World War: The History of Acetone
Anyone who believes that acetone is a modern invention will be corrected by history. Acetone was first discovered in 1606 by Andreas Libavius, when he heated lead(II) acetate. Later, in 1661, Robert Boyle produced acetone from wood vinegar, which was obtained through the dry distillation of wood. For centuries, acetone remained a substance that chemists knew and used but that played no particular role in the world.
That changed abruptly with the outbreak of the First World War.
The Weizmann Process: How Acetone Influenced the Course of a World War
During the First World War, biochemist Chaim Weizmann made a contribution to the British munitions industry that proved decisive to the war effort. It urgently needed acetone as a key component of cordite - the smokeless propellant without which British artillery could not have fired. Weizmann developed a biotechnological process for obtaining the solvent from corn.
In 1912, Weizmann, a biochemist at the University of Manchester, discovered that the bacterium Clostridium acetobutylicum could ferment corn starch into acetone. When British acetone supplies - which before the war had mainly been imported from Germany - collapsed at the beginning of the war, Winston Churchill personally turned to Weizmann. In May 1915, after Weizmann had demonstrated to Churchill and the Admiralty that he could convert 100 tons of grain into twelve tons of acetone, the government requisitioned brewery and distillation facilities. Factories were built, and together they produced more than 90,000 gallons of acetone per year - enough to meet the seemingly insatiable demand of cordite production.
This event also marked the first industrial use of biotechnology in history – a remarkably modern concept for 1915. Weizmann’s work on acetone was fundamental to the outcome of the First World War. At the same time, it was the first application of industrial biotechnology – the use of biological systems to manufacture valuable products on an industrial scale, as is now widespread in the production of medicines and vaccines.
From the war economy to modern chemistry
Until the middle of the 20th century, acetone-butanol fermentation was an important process for obtaining acetone. The anaerobic bacterium Clostridium acetobutylicum was used for industrial production. With the development of petrochemical processes, fermentation was eventually replaced by more efficient chemical syntheses. But the solvent itself remained: It was not needed less, but more – and its areas of application continued to grow with each new industrial era.
Acetone uses: 10 clever applications at a glance
Enough history – let’s get practical. Whether you want to use acetone in the household, work with it professionally, or are simply curious about what is possible: The following ten areas of application demonstrate the full range of this remarkable solvent. One thing always applies: High-quality purity is crucial. For all the applications described, you should use acetone with at least 99.5% purity – because impurities can not only impair its effectiveness but also leave unwanted residue.
Use 1: Nail polish and cosmetics – the classic
Let’s start with the best-known use. Many people encounter this chemical compound in everyday life: as nail polish remover or for removing stubborn adhesive residue. However, when you pick up a ready-made nail polish remover at the drugstore, you usually get a diluted mixture with additives. By contrast, using pure acetone 99.5% delivers significantly faster and more thorough results – especially with stubborn gel polish or shellac, which requires a longer processing time under aluminum foil.
Practical tip: For gel nails, soak a piece of cotton in acetone, place it on the nail, and secure it with aluminum foil for five to ten minutes. The gel polish will then come off completely – without any aggressive scraping.
Application 2: Removing adhesive residue, labels, and instant glue
Everyone knows it: a price tag that will not come off cleanly. A drop of superglue that has hardened on the tabletop. Acetone is itself a solvent in many all-purpose and instant adhesives. Conversely, this means it can also dissolve these adhesives again. A cloth soaked in acetone, placed briefly on the affected area, usually does the job that would otherwise require hours of scraping and rubbing.
Practical tip: Before using it on sensitive surfaces (paintwork, plastics), always test it first in an inconspicuous area. Acetone dissolves plasticizers and additives from many plastics, which can make the plastic brittle and sensitive.
Application 3: Degreasing and cleaning before painting
Anyone who has ever applied paint that peeled off again after a short time knows the problem: The surface was not clean enough. Grease, oil, silicone traces - even the finest residues prevent good paint adhesion. Painters and paint technicians use acetone when they want to remove old paint layers or thoroughly prepare surfaces.
Acetone dissolves paints, oils, fats, resins, vinyl resins, asphalt, cellulose acetate, and nitrocellulose - an impressive range. For painters, auto body technicians, and woodworkers, the acetone cleaning ritual is therefore indispensable before applying paint. The result: better adhesion, a more uniform surface, and a longer-lasting coating.
Application 4: Cleaning electronics and circuit boards
Anyone who repairs or builds electronics knows: dirt and grease on circuit boards can cause short circuits and weaken solder joints. In photochemical circuit board manufacturing, acetone is used for the final cleaning of circuit boards - it removes flux residues and fingerprints. Electronics technicians use it for the same reason, to thoroughly clean the boards before soldering.
Why acetone in particular? Because it evaporates quickly, leaves no residue, and reliably dissolves fats and resins. For this application, a purity of 99.5% is particularly important: impurities could settle on the sensitive contact surfaces and compromise the function of the components.
Caution is also advised with plastic housings of capacitors or relays - these can be softened or damaged by acetone.
Application 5: Degreasing metal in workshops and industry
Acetone is used to dissolve paint coatings and remove paint residue. It can also be used to degrease and clean metal machine parts and plastics that are inert to acetone. In automotive workshops, metalworking companies, and precision mechanics, degreasing workpiece surfaces before welding, bonding, or coating is a standard operation - and acetone is one of the most reliable agents for this purpose.
Practical tip: In construction and skilled trades, acetone is also used to clean and prepare joint flanks and remove sealant residue. Anyone who needs to remove silicone or PU foam residue from tools or surfaces should use it while still fresh (not yet cured) and treat the affected areas immediately with acetone.
Application 6: Laboratory glassware cleaning - precise and residue-free
In laboratories worldwide, acetone is indispensable in everyday laboratory work. Anyone preparing glass vessels for analytical measurements knows that even tiny residues of water, grease, or previous substances can distort measurement results. Acetone reliably dissolves these impurities, evaporates completely, and leaves no traces. Acetone is particularly important for sample preparation and as a rinsing liquid for cuvettes.
In practice, glass vessels are briefly rinsed with acetone after cleaning - this displaces residual water and dries the surface within seconds. For this application, the purity of 99.5% is absolutely crucial: Every impurity is introduced directly into the vessel and can affect subsequent experiments.
Application 7: Dental practices and medical applications
Anyone visiting their dentist may not realize that acetone plays a role in the treatment room. Special acetone-containing cleaning solutions are used here: They clean, degrease, and dry prepared dentin surfaces, cavities, tooth stumps, root canals, crowns, bridges, as well as brackets and bands. This ensures optimal adhesion of filling materials and adhesives. In addition, acetone plays an important role in laboratories and the medical industry - for example, in the extraction of active ingredients or as a reagent in diagnostic tests. For medical personnel, dental practices, and laboratories, the purity of the acetone used is therefore particularly important: Only highly pure solvents can deliver reproducible, reliable results.Application 8: Wood Restoration and Conservation
In restoration and monument preservation, acetone is a proven tool - albeit one that requires targeted use. For restoration purposes, acetone can be used for the controlled drying of damp wood, as well as for removing resins, fats, and asphalt and for cleaning glass, ceramics, iron, paper, and stone. The literature also cites the removal of black spots from bronzes, residues from adhesive joints, and the separation of resin-bonded papers as examples of its use. Acetone is used particularly in museums and workshops for antique furniture to dissolve old resin layers and contaminants from wooden surfaces before a new treatment is applied. Important: Acetone should be used selectively and in small quantities, as it can also damage paints and pigments. Note for leather: Caution is advised with genuine leather - leather contains natural oils that keep it supple. Acetone can remove these oils, leading to dryness and cracking. There are more suitable specialty products for leather.Application 9: 3D Printing and Plastics Processing
One of the most modern applications is so-called acetone vapor smoothing in 3D printing. The process is remarkably simple: a 3D-printed object made of ABS is exposed to acetone vapors in a closed container. These slightly melt the outermost layer, causing the visible print lines to fuse together. The result is a smooth, glossy, almost injection-molded surface. Important: This process only works with ABS and ASA plastics. PLA, on the other hand, cannot be smoothed with acetone. But acetone is indispensable in plastics processing beyond 3D printing as well: in the chemical industry, it plays a key role in the production of PMMA (acrylic glass, Plexiglas). We encounter this material every day: in watch crystals, protective screens, medical devices, and design objects.Application 10: Acetone in the Human Body – Medical Relevance
Perhaps the most surprising “use” of acetone takes place entirely without our involvement - in our own bodies. In medicine, acetone is classified as one of the so-called ketone bodies. It is produced as an intermediate product during fat burning and is normally broken down by the metabolism. As part of the keto diet, more and more people are consciously using this biochemical mechanism: When the body is deprived of carbohydrates, it switches to burning fat - producing ketone bodies, including acetone, which is released through the breath. In clinical diagnostics, elevated acetone levels in the blood or urine are an important warning sign: Acetone is produced as a metabolic byproduct in the human body and is excreted in the urine. Patients with severe diabetes mellitus develop acetonuria as an accompanying symptom and excrete up to 50 g of acetone per day. Important distinction: This medical relevance of course does not mean that industrial acetone should be ingested or used medically without professional guidance. Buying acetone as a solvent means using it externally and observing all safety rules.Using acetone safely: What you absolutely need to know
As versatile as acetone is, it should be handled with due care. Anyone who knows the most important rules can work safely and effectively.Fire safety and storage
Acetone has a boiling point of 56 °C and is highly flammable. This means that even at room temperature, acetone forms vapors that can combine with air to create an explosive mixture. Acetone is highly flammable. Keep it away from open flames, sparks, and other ignition sources. Do not smoke near areas where acetone is used, and take measures to prevent electrostatic discharges. For storage: Always store acetone in tightly sealed containers in cool, dry, and well-ventilated areas. Avoid storing it near food and keep acetone away from children.Protective equipment: What you should wear
Despite its low toxicity, acetone severely dries out the skin; therefore, hands and fingers must be consistently protected. Although acetone is generally considered relatively safe, users should ensure adequate ventilation. It is also recommended to wear protective gloves - as acetone quickly strips the skin of its natural moisture. An important note when choosing gloves: Acetone is not adequately contained by latex and vinyl gloves and may attack these materials - therefore, use nitrile gloves, which offer significantly better protection. For the eyes, sealed safety goggles are recommended, especially when working with larger quantities.Ventilation and first aid
Prolonged exposure to the vapors can cause dizziness and fatigue. Due to its degreasing effect, acetone can make the skin dry and cracked. Therefore, always work in well-ventilated rooms or outdoors. In the event of accidental skin contact: Immediately remove contaminated clothing and thoroughly wash the affected area with water. In case of eye contact, rinse the eyes with water for at least 15 minutes and seek medical attention. If acetone vapors are inhaled, the affected persons should be taken into fresh air immediately. If symptoms persist, a doctor should be consulted in all cases.
What should you look for when buying acetone?
Not all acetone is the same - and for professional applications, purity makes the crucial difference. Technical-grade acetone, sometimes found in hardware stores, may contain traces of water, methyl ethyl ketone, or other organic impurities. These additives are often tolerable for simple cleaning tasks - but are completely unsuitable for laboratory work, medical applications, or electronics cleaning.
Purity level: What does 99.5% mean?
A purity level of 99.5% means that at most 0.5% of the liquid consists of other substances - water, aldehydes, and organic by-products. That may sound marginal, but it is not: particularly in analytics, dentistry, or electronics manufacturing, these 0.5% can make the difference between a perfect result and an incorrect measurement or connection. Highly pure acetone with a concentration of 99.5% is synthetically produced, has an effective cleaning and degreasing effect, is used in electronics, precision mechanics, optics, and industry, and evaporates quickly without leaving residue.
Packaging size and practicality
Small quantities are sufficient for occasional household use. However, anyone who works with it regularly - as a tradesperson, laboratory technician, dental assistant, or in an automotive workshop - is much better served by a 1-liter bottle. It offers good value for money, is easy to handle, and can be stored safely.
Our recommendation for all applications
Anyone looking for a reliable, high-quality solvent suitable for all the applications described in this article will find exactly what they need in the MC24 Acetone 99.5% Solvent 1000ml from Medicalcorner 24: synthetically produced, degreasing, evaporating without residue - and at a fair price. Whether at home, in the workshop, laboratory, or medical practice, this all-rounder performs well in any environment.
Conclusion: One solvent for almost everything - when quality is right
Acetone is far more than a nail polish remover. It is a chemical all-rounder with an impressive history dating back to the early 17th century and even helping shape the course of a world war. From cosmetics and highly precise dental practices to the innovative world of 3D printing - few other solvents combine such a broad range of applications with such good environmental compatibility.
Purity is the key to success in all these areas. Only high-quality 99.5% acetone truly evaporates without leaving residue, delivers maximum dissolving power, and produces reliable, reproducible results. It is the invisible yet indispensable foundation of quality for professionals.
For anyone who needs to rely on their material, MC24 Acetone 99.5% Solvent is the right choice. It stands for precisely this dependable purity and helps you complete your work accurately and cleanly - whether in the laboratory, workshop, or at home.
FAQ: Frequently asked questions about acetone
What is acetone and what is it used for?
Acetone (chemical formula: (CH₃)₂CO) is the simplest ketone and a colorless, highly volatile organic solvent with a characteristic fruity-sweet odor. It is one of the most widely used solvents worldwide and has a remarkably broad range of applications: at home for removing nail polish and adhesive residue, in trades for preparing surfaces before painting, in industry for degreasing metal, in laboratories for cleaning glassware, in dental practices for cleaning and degreasing dentin surfaces, and in plastics processing - for example, for smoothing 3D-printed objects made from ABS. Acetone is completely miscible with water, evaporates without leaving residue, and dissolves both polar and nonpolar substances. This combination makes it unique among common solvents. In medicine, acetone is also known as a ketone body produced during fat metabolism in the human body - a sign that the substance is important not only industrially but also biologically.Is acetone dangerous to health?
Compared with many other organic solvents, acetone is considered relatively low in toxicity - it is not a carcinogen or mutagen, and the body even produces small amounts of it itself. Nevertheless, it should be handled with respect. The main risks: Acetone is highly flammable and forms vapors at room temperature that can create explosive mixtures with air. During prolonged skin contact, it removes the skin's natural fats and oils, leading to dryness and irritation. Inhaling large amounts of acetone vapors can cause dizziness, drowsiness, headaches, and, in extreme cases, loss of consciousness. For safe handling: Always work in well-ventilated rooms, wear nitrile protective gloves, use safety goggles, and keep open flames and sparks away. Always follow the information on the product label and consult a doctor or safety officer if necessary.What difference does the purity grade make with acetone?
The purity grade of acetone is not merely a marketing feature - it has a direct impact on the application result. Technical-grade acetone (often with 95–98% purity) contains water, methyl ethyl ketone, or other organic impurities. These may be tolerable for simple household cleaning tasks, but can become problematic in professional applications: In electronics cleaning, residues can cause corrosion on contact surfaces. In the laboratory, impurities can distort analytical results. In dentistry, insufficient purity can impair the adhesion of fillings and brackets. In 3D printing smoothing, contaminated acetone can produce uneven surfaces. A purity grade of 99.5%, as with MC24 Acetone, on the other hand, guarantees completely residue-free evaporation and maximum dissolving power - for professional results in every area of application.Can acetone be used to clean medical instruments?
Acetone is indeed used in medical and dental facilities, but for very specific tasks and not as a general disinfectant. Solutions containing acetone are used in dentistry to clean prepared dentin surfaces and root canals, as well as to degrease tooth stumps, crowns, and brackets before bonding. It reliably removes fats, oils, and moisture from surfaces, thereby improving the adhesion of adhesive and composite materials. However, acetone is not suitable as a full-fledged disinfectant - that is, for killing germs, bacteria, or viruses. Special disinfectants based on alcohol (e.g., isopropanol or ethanol) or aldehyde compounds are used to disinfect medical instruments. For medical applications, always follow the manufacturer's instructions and consult a doctor or pharmacist if necessary.What is the difference between acetone and isopropanol?
Acetone and isopropanol are both organic solvents and are frequently used for cleaning and degreasing, but they have different strengths. Acetone is a ketone ((CH₃)₂CO) and a considerably stronger solvent than isopropanol. It dissolves resins, paints, plastics such as polystyrene, adhesives, and fats particularly effectively. At the same time, it can attack certain plastics and paints, which is why a material compatibility test is recommended before use. Isopropanol (IPA, 2-propanol) is milder, dries out the skin less, and can be used safely on significantly more surfaces. It is also effective as a disinfectant against bacteria, fungi, and many viruses - a property acetone does not have. In short: For disinfection → isopropanol. For strong dissolving and degreasing tasks → acetone 99.5%. The two products complement each other ideally in professional applications.Where can you buy acetone in Germany?
Acetone is available in Germany from drugstores, DIY stores, pharmacies, and online - although the quality varies considerably. Drugstores generally carry diluted nail polish removers with additives that are not suitable for professional applications. In DIY stores, acetone is often available as a technical solvent with a lower degree of purity. However, anyone looking to buy high-purity acetone 99.5% online - for laboratory, medical practice, trade, or industrial use - will find specialized online stores to be a much better option. Medicalcorner 24 offers MC24 Acetone 99.5% in a practical 1-liter bottle at a fair price, with fast shipping to Germany, Austria, and Switzerland. Buying from a specialist supplier ensures not only the correct purity but also proper labeling, a safety data sheet, and secure packaging for transport.
Is acetone really produced in the human body?
Yes - and this is one of the most fascinating aspects of this solvent. Acetone belongs to the so-called ketone bodies, which are synthesized in the liver from fatty acids. Normally, these ketone bodies are further metabolized in the body and provide energy - especially for the brain and heart. Acetone is produced as a by-product and is primarily excreted through the breath and urine. Under normal circumstances, the amounts are so small that they are barely noticeable. With a low-carbohydrate diet (ketosis, ketogenic diet), however, ketone production increases sharply - many people then notice a slightly sweet or fruity, acetone-like odor on their breath. In conditions such as poorly controlled type 1 diabetes mellitus, acetone production can increase so much that patients excrete up to 50 g per day - a medical emergency known as diabetic ketoacidosis. Please consult a doctor immediately if you experience corresponding symptoms.Where can I find further scientifically sound information about acetone?
This article is based on peer-reviewed chemical literature and public databases. If you would like to explore the subject in greater depth, the following authoritative sources are recommended:
- PubChem (National Institutes of Health, USA): The most comprehensive public database for chemical substances. Here you will find all toxicological, chemical, and physical data on acetone: https://pubchem.ncbi.nlm.nih.gov/compound/Acetone
- Encyclopædia Britannica: Provides an excellent overview of the history, production, and uses of acetone: https://www.britannica.com/science/acetone
- Swiss Material Archive: A valuable resource for detailed questions concerning restoration and materials science: https://materialarchiv.ch/de/ma:material_1135?type=all
