Is ferrofluid dangerous in water Ferrofluids can be considered stable colloids [1], such that the particles have an average diameter of up to 100 nm. Ferrofluid for Domain Detection and Bio-medical Applications. Ferrofluid (a portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field. Allow vessel to sit for 2 days. Ferrofluids have a lustrous spiky shape that morphs into different sizes and patterns in the presence of magnets. And experimented with different elements. This review aims to provide the current scope and research opportunities regarding the methods of synthesis of nanoparticles Moreover, other applications of ferrofluids in the fields of water treatment, energy harvesters, heat transfer, and vibration control are explained. Clean vessel, and put a supersaturated nacl mixture in the vessel. 7d and Supplementary Movie Aug 21, 2007 · Basic Ferrofluid Kit Includes: 1 fluid ounce bottle of educational grade ferrofluid (FerroTec EFH1), a set of disposable gloves, 1 pipette, a set of petri dishes ; EDUCATION - These ferrofluids are specifically designed for use in classrooms, schools, and museums. By leveraging the unique properties of ferrofluids, such as their magnetic responsiveness and stability, researchers are exploring innovative ways to remove contaminants from water sources efficiently. This product is mildly alkaline (pH 7 - 9). For instance cobalt based ferrofluids show significantly stronger effects than magnetite based ones (see also Table I). These magnetic particles are made of magnetite or other magnetic materials, coated with a surfactant to prevent them from clumping together. Reply reply Im having some idea recently about use tiny particles of copper in water, but i think this will suffer corrosion. Feb 6, 2024 · In this study, we look at the effects of various parameters on mixed convection in ferrofluid within a square porous medium with a heated bottom wall subjected to a non-uniform magnetic field and compare the heat transfer performance of water/EG-based magnetite (Fe $$_3$$ 3 O $$_4$$ 4 ) and awaruite (Ni $$_3$$ 3 Fe) ferrofluids. The particles need to contain iron or another element — such as cobalt or nickel — that act like a magnet. Aug 1, 2019 · Microplastics are dangerous to marine life and may have consequences for human health. Fe2O3/Fe3O4 ~ 5 g. This approach can work if the concentration of the ferrofluid is known in advance and remains constant. In other words, ferrofluid is ferrimagnetic nanoparticles in a carrier fluid. The distinctive ‘spikey’ shape of a magnetized ferrofluid is caused by the need to find the most stable shape in order to minimize the total energy of the system, an effect known as the normal-field instability. Necessary measures to be taken according to route(s) of exposure - Ingestion: Rinse mouth and give moderate amount of water to drink. 25) Figure 4:Treated and untreated solutions: veggie oil-based ferrofluid (left), decane-based ferrofluid (middle), and Jul 26, 2017 · We all know ferrofluid as the stuff that moves around and makes incredible geometric shapes, but what exactly is it and how does it work? Bradley explains ev Ferrofluids based on amorphous Fe-Co-B magnetic nanoparticles obtained via microemulsion were prepared by Zhao et al. Jun 21, 2024 · Ferrofluid is a type of fluid that contains suspended micro particles of iron, magnetite or cobalt in a solvent. Supply of fresh water systems throughout the globe are failing to keep up with increasing demand, which has also been made worse Feb 28, 2024 · Water Treatment. 11 Other means of identification: Chemical formula, alternative names: EFH series Ferrofluid Ferrofluid display cell Recommended use of the chemical and restrictions on use Recommended Use: For laboratory use only. Put oxyclean and distilled water in the vessel for 2 days until the oxyclean dissolves. Searching again i found on youtube some “DIY” with oil, tiny particles of iron and some stuffs. Box 219, Batavia, IL 60510 (800) 452-1261 Chemtrec Emergency Phone Number: (800) 424-10025 Jun 6, 2024 · Ferrofluid Experiments for Kids. Nov 24, 2024 · Ferrofluids are colloidal mixtures that contain tiny magnetic particles suspended in a liquid carrier, typically oil or water. This research article presents a study on the potential use of oil-based ferrofluid for the efficient removal of microplastics from water. When I was done the ferrofluid had zero staining, like you see in the videos online, except for in a few Dec 1, 2024 · The effects of the filling ratio of ferrofluid and water were analysed to find the optimum performance of the thermosyphon by evaluating the thermal resistance and effective thermal conductivity. The ferrofluid chamber has outlets so that it can interact with water. The water was allowed to settle (2 min). This avoids the need for a "Ferrofluid Suspension"#Fer Mar 11, 2017 · A ferrofluid is a mixture of finely grounded ferromagnets (containing iron) coated with a surfactant (prevents the magnetic particles from clumping) and mixed in an organic solvent or water. The world leader in ferrofluid technology, Ferrotec ferrofluid products are used in many areas of ferrofluid technology, from audio speakers to domain detection, material separation, biomedical research and more. May 16, 2022 · With the broader use of ferrofluid in industry and the sciences, ferrofluid research has produced many new branches. In case of contact with the skin, rinse immediately with plenty of water and soap. A true ferrofluid is a magnetic colloid; a stable suspension of magnetic particles in an oil- or water-based carrier liquid made by milling iron oxide in a surfactant, or by chemical synthesis. or water in some special cases where oil can be dangerous to use. If your ferrofluid looks too stringy then I would add more alcohol. B Water Soluble Dispersant 7 – 27 N/A N/A C Deionized Water 66. That'd depend entirely on what the ferrofluid solvent and detergent is, so I'm not sure anyone can say for certain offhand. The ferrofluid is in a box that contains air and ferrofluid, such that the setup is buoyant. Fourier Transform Infrared (FTIR) analysis was conducted to identify the main peaks in the ferrofluid, including carboxyl group (1542 cm-1), C-H May 16, 2012 · Next, use a magnet to settle the ferrofluid to the bottom and then remove the magnet. In fact, “ferro-“ is Latin for iron (which has the chemical symbol “Fe”). For large quantities (like multiple batches), take the ferrofluid to a hazardous waste facility. The results are great and exactly what I wanted. He repeats the touching with a rubber glove on, and the ferrofluid leaves a permanent residue on the Feb 6, 2014 · Ferrofluid® Flinn Scientific, Inc. This property has made ferrofluids the subject of interest in various fields, including: Ferrofluid is a liquid that is attracted to the poles of a magnet. Aug 8, 2022 · Ferrofluid is a liquid that reacts to the attraction of a magnet. Jun 24, 2019 · Ferrofluid (noun, “FAIR-oh-flu-id”) This is a fluid with tiny magnetic particles floating in it. Here's an example image of the system: I need confirmation in these aspects: Nov 24, 2024 · In addition, Fe3O4/water ferrofluid with φ=2. In drug delivery systems, ferrofluids can be used to target specific cells or tissues by applying a magnetic field. Jun 26, 2012 · Millefiori – ferrofluid + water colors via Waxy. Volume concentration of the magnetic Feb 25, 2021 · A ferrofluid is a liquid which becomes highly magnetized in the presence of a magnetic field. Use gloves when handling, especially for extended periods. 5 Not Determined N/A C Deionized Water (H 2O) 97. Searching in youtube i found ferrofluid, but the price is around € 400,00. 5 – 1. It makes for an awesome addition to your desk or the ultimate gift for a science lover. 16 oz. If the ferrofluid does not spike, continue to move the strong magnet around, pouring off any liquid. [1] Each magnetic particle is thoroughly coated with a surfactant to inhibit clumping. in a 0. Moreover, there were two different heating blocks for the same heat flux located on the bottom side (BS) and topside (TS) of the channel. 5. EMG 607 ferrofluid is Black-brown fluid and uses Cationic surfactant. Magnetite is the most common magnetic material; ferrosilicon is also used. Use a strong magnet to attract the ferrofluid to the bottom of the weighing boat. EMG 700 ferrofluid is Black-brown fluid and uses Anionic surfactant. The targeted analyte, micro-polystyrene (micro-PS), was chosen along with palm oil as the carrier liquid. Download A Liquid Ferrofluid-inspired Style Black Panther Drinking Water Strong And Danger Animal Body Is Made Up of Glossy Spikes and Metallic Textures And Water Reflection Stock Illustration and explore similar illustrations at Adobe Stock First I prepared iron(ll) chloride, by putting some steel wool in about 150 mL of iron(lll) chloride, left it overnight and filtered the product in the morning and added some distilled water so that the whole volume was 300 mL Then in a big bowl, I poured in 3 L of water, 60 mL of iron(ll) chloride and 75 mL of iron(lll) chloride. Ferrofluids Oct 1, 2021 · Hatamie et al. For small quantities (like 1 batch), seal it in an airtight container and throw it in the trash. Ferrotec’s water-based EMG Series are typically used in applications where rapid evaporation or the ability to mix ferrofluid into a water-based system is required. ccIn this video I show how to move IronOxide Power in Water on a Hydrophobic surface. When exposed to a magnetic field, the particles within the ferrofluid align with the field lines, creating […] Dec 14, 2024 · Dispose of ferrofluid like you’d dispose of motor oil. Jan 31, 2017 · The ferrofluid quickly starts traveling up the ridges of his finger and around his nail. Oct 3, 2024 · Ferrofluid is a unique liquid that contains tiny magnetic particles suspended in a carrier fluid, typically an organic solvent or water. Secrets You DIDNT Know About Unspeakable in today's video we are looking at Secrets You DIDNT Know About Unspeakable! Unspeakable is a massive YouTuber who i We would like to show you a description here but the site won’t allow us. This product is mildly alkaline. The ferrofluid inside the chamber reacts to the vibrations of your favorite tunes or ambient sounds. 8 – 91. Luckily there are plenty of suppliers (this UK supplier is top of my Google search for "ferrofluid sales" and they also supply lots of cool magnets). Most modern ferrofluids use magnetite (Fe 3 O 4) or cobalt ferrite (CoFe 2 O 4) as the magnetic component: the impact of the ferrofluid under magnetic field crucially depends on the magnetic component used. , using oleic acid as a surfactant and water or silicone oil as a liquid carrier. The ferromagnetic nano-particles are coated with a surfactant to prevent their agglomeration (due to van der Waals and magnetic forces). Pour off and discard the dark liquid. Jan 12, 2023 · Product Name: Ferro fluid, magnetic liquid Product Codes: G80. May 12, 2022 · Water-based ferrofluids have been used to study fundamental scientific phenomena, such as emergent behaviors and functionalities in matter under nonequilibrium conditions [17], self-assembly in May 30, 2024 · With the Flowelement Ferrofluid Art Water Bottle, you can experience this enchanting fusion of functionality and aesthetic appeal. bottle This chemical is used in the Quantum Stem Set in the following reaction: -Ferrofluid and Magnets Jan 4, 2025 · This RIZE contains colored Ferrofluid, available in Blue, Red or Gold. Apr 16, 2008 · For example, in microfluidic devices, the force produced by a ferrofluid can be used to move the fluid through channels and control its flow. Suppliers name, address and phone number Feb 26, 2019 · The particles are typically about 10 nm in diameter, and may be suspended in either oil or water. In MRI, ferrofluids can be used to enhance image contrast by acting as a contrast agent. You can mitigate the dangers posed by ferrofluids by undertaking the following safe practices: Adhere to safe working procedures like using personal protective equipment (PPE) including gloves, gas masks and safety glasses. Rosensweig et al . 3 Ferrofluid was first developed by NASA researcher Stephen Pappell in the 1960s in order to control fluids Mar 2, 2020 · Ferrofluids have a strong staining capacity and can stain skin, glass, and even ceramic surfaces. Further, it was assumed that the melting of ice is slow enough or the axial velocity if fast enough to remove the melted layer of ice such the nanoparticle volume concentration is kept constant. The. May 17, 2023 · Ferrofluids are used in biomedical devices such as drug delivery systems and magnetic resonance imaging (MRI) contrast agents. When subjected to a magnetic field, these fluids can change shape, flow direction, and stability, leading to dramatic visual effects. 5 %. STEM DEMONSTRATION WONDER: A staple for any STEM enthusiast, this ferrofluid in a bottle is an essential part of educational displays, showcasing the intriguing behavior of ferrofluid magnetic liquid with TL;DR: In this paper , an alternative method of removing microplastics (MPs) by magnetic nano-Fe 3 O 4 was presented, and the established approach was effectively applied to remove MPs in environmental water bodies including river water, domestic sewage, and natural seawater. To make the nanoparticles I used iron chloride hexahydrate with iron chloride tetrahydrate in a 2:1 ratio in water and heated to 90C. So a mineral-oil/oleic acid ferrofluid might work with water. The magnetic particles are small enough, usually between 3–15nm, to move by Brownian motion outside of a magnetic field and do not clump together or adding the ferrofluid solutions. You can't use acetone, as this will lead to the particles to precipitate out. Dec 14, 2023 · Definition Ferrofluid is a colloidal suspension containing nanoscale magnetic particles dispersed within a carrier liquid, typically an organic solvent or water. com P302+P352 If on skin: Wash with plenty of soap and water P305+P351+P338 If in eyes: Rinse cautiously with water for several minutes. In fact, this ferrofluid also reduced the separation process unlike the available commercial liquid. May 12, 2022 · The availability of high-quality, low-cost water to meet requirements of the human has become a major issue in the twenty-first century. Avoid Prolonged Skin Contact: Direct skin contact with ferrofluid may cause irritation. The magnetic field also contributes to the heat transfer From the info I collected online its best to use a mixture of 70% isopropanol 30% water as the solution. What happens when you move a magnet under the ferrofluid? Non-Toxic but Handle with Care: While the ferrofluid is non-toxic, it should still be handled with caution to prevent staining and accidental exposure. EMG 605P ferrofluid is Black Fluid and uses Cationic surfactant. Ferreira injected ferrofluid into small glasses of water contaminated with microplastics. These tiny particles are coated with a surfactant to prevent clumping and promote stability within the fluid. The shapes, you see in these image are about the size of a thumbnail. Magnetorheological fluids based on amorphous Fe-Si-B particles obtained via milling of amorphous ribbons were prepared by Yu et al. Jul 9, 2016 · It is always easier to buy ferrofluid than to make it. Ferrofluid barriers, by contrast, could seal leaking waste tanks, pipes, or landfills with maximum confidence and minimum environmental disturbance. My kids went wild for this magnetism experiment. 0 % performed the highest performance and performance evaluation criteria increased by 8. It is a colloidal liquid made of nanoscale ferromagnetic or ferrimagnetic particles suspended in a carrier fluid (usually an organic solvent or water). Jan 6, 2025 · The ferrofluid is comprised of magnetite (Fe 3 O 4) nanoparticles of low volume concentration ϕ (0 ≤ ϕ ≤ 0. P331: Do NOT induce vomiting P332+P313: IF skin irritation occurs: Get medical advice/attention. Jun 12, 2018 · This bizarre goo is called ferrofluid, and it really is the stuff of science fiction. The Blue is a color-shifting pigment that shifts from Blue to Purple in the light, and is also available with a neon green ceramic coated center screw to really stand out! Ferrotec’s water-based EMG Series are typically used in applications where rapid evaporation or the ability to mix ferrofluid into a water-based system is required. You need to make a solution saturated with salt to prevent the ferrofluid from sticking too much to the walls of the bottle. [ 11 ], using Apr 25, 2021 · In this video I show you what happens when you bring a type II superconductor near ferrofluid that is in a magnetic field. Large ferromagnetic particles can be Aug 14, 2023 · Mitigating the Dangers of Ferrofluids. at AVCO Space Systems. Referring to ferrous wastes used as raw materials in water treatment, many studies were developed on As removal, the pentavalent (As(V) or arsenate) state being more studied, even if the more dangerous state is trivalent (As(III) or arsenite) state, often in the process being implicated an oxidation step as pre-treatment . Wikipedia's ferrofluid page says that oleic acid can be used as a surfactant, and oleic acid is insoluble in cold water. Ferrotec’s water-based EMG Series ferrofluids are most often used for domain detection and bio-medical applications, and we offer an extended family of ferrofluid options with unique magnetic and particle properties to meet a broad range of requirements. Nov 12, 2024 · UNOHOUS Ferrofluid Music Visualizer, Ferrofluid Rhythm Music Lamp, RGB Light Ferrofluid Speaker Music Mate, Dancing Ferrofluid Sculptures for Desk,Office,Bedroom 5. Jan 21, 2022 · Ferrofluids are colloidal suspensions of iron oxide nanoparticles (IONPs) within aqueous or nonaqueous liquids that exhibit strong magnetic properties. We have Most modern ferrofluids use magnetite (Fe 3 O 4) or cobalt ferrite (CoFe 2 O 4) as the magnetic component: the impact of the ferrofluid under magnetic field crucially depends on the magnetic component used. Ferrofluids are promising in diverse areas because of their chemical stability, low toxicity, biodegradability, high surface area, adsorption capacity, fluidity, and magnetic properties. Ferrofluid should not be ingested and is highly flammable. Sep 18, 2023 · The process essentially is. Large ferromagnetic particles can be Ferroflow is an art display that creates amazing visual experiences using ferrofluid and varying magnetic fields. Ferrofluids (sometimes referred as magnetic liquids) are colloidal suspensions of magnetic nanoparticles. com FREE DELIVERY possible on eligible purchases Jun 18, 2024 · Observing magnetic fields has always fascinated me, and the method of ferrofluid in a bottle is one of the best. Ferrofluid is a magnetic solution with a viscosity similar to motor oil. 60); b) sample treated with vegetable oil-based ferrofluid (40 x 0. It was created at NASA as a way to move fuel in space, and someday soon, it may be used to pilot medicine B Water-soluble Dispersant 0. Sep 12, 2012 · Typically, these involve pumping a water-and-ferrofluid mixture through a channel, while magnets outside the channel direct the flow of the ferrofluid, perhaps diverting it down a side channel or pulling it through a perforated wall. 10 G80. Boil your ferrofluid and place immediately into salt water vessel. Sep 6, 2020 · Ferrofluid with Water, Oil, Dish Soap and Hand Sanitizer | 100% Satisfaction | Magnetville I played with ferrofluid. This ferrofluid sound visualizer offers an enchanting visual representation of audio frequencies, making it a standout desktop decor piece. Today, we broke out our test tubes with the left over iron oxide powder from when we made our own tinted sunscreen and created a DIY ferrofluid concoction that we are calling magnetic mud. Continue rinsing. Markus Zahn group at MIT. Water treatment using ferrofluids is a cutting-edge application that holds great promise in addressing water pollution challenges. Remove contact lenses, if possible and easy to do. EMG 507 ferrofluid is Black-brown fluid and uses Anionic surfactant. A true ferrofluid remains stable over a long period of time. R. Injected ferrofluids could be steered into place beneath contaminated sites by surrounding magnets, forming an evenly distributed seal. Unlike the ferrofluid you may know and love (because come on, it is awesome), the new magnetic liquid retains its magnetism even in the absence of an external magnetic field. Ferrofluids are also called magnetic nanoparticles (MNPs) or magnetic beads (MBs). 60); c) treated sample with decane-based ferrofluid (10 x 0. Then I show you what happens when Jul 19, 2019 · Yes, ferrofluid is already a thing, but this is different. EMG 807 ferrofluid is Black-brown fluid and uses Anionic surfactant. Ferrofluids are composed of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid, usually an organic solvent or water. At first, the Jan 1, 2025 · The experiments were divided into three groups: Deionized Water (DW), ferrofluid without a magnetic field (FF), and ferrofluid with a magnetic field (FF/MF). It is often used for science and education to show how iron particles react to a magnetic field, the previously runny liquid suddenly starts to grow spikes which grow higher as the magnet gets nearer and these spikes then repel each other, causing the patterns to move and change shape. https://brainery. The fluid can be water, oil or something else. O. Dynamic Ferrofluid Visualization: Ferrofluid is known as the prototype substance of the Marvel movie "Venom". The Darcy–Brinkman–Forchheimer model is used for modelling . If your ferrofluid has little bits that are floating, then you need to add more water. 4 – 99. B Water-soluble Dispersant 0. As you sip your drink, Feb 6, 2017 · Ferrofluid is made up of iron-oxide particles, a carrier fluid (like water or an organic solvent), and a surfactant that binds the two together, allowing for the strange behavior it demonstrates Ferrofluid is a liquid that is attracted to the poles of a magnet. To obtain systematic analytical results and to help researchers gain insight into the dynamics of ferrofluid research, in this review, we first track and summarize the ferrofluid research over the past 15 years to assay how ferrofluid can contribute to modern technology. P. 8 N/A N/A _____ [SECTION 4]: FIRST AID MEASURES . Do Not Ingest: Ferrofluid is not safe for Jun 7, 2023 · The system I am trying to model is essentially moving water interacts with ferrofluid. Some of the steps don't work well unless the conditions are just right and it is hard to get them right on your first attempt. It was invented in 1963 by NASA as a proto Jan 21, 2022 · Ferrofluids are colloidal suspensions of iron oxide nanoparticles (IONPs) within aqueous or nonaqueous liquids that exhibit strong magnetic properties. Also it's best not to use too much ferrofluid or you will have a large boring blob. Are ferrofluids dangerous? Ferrofluids are generally considered safe to handle, but caution should be taken as they can be corrosive and stain surfaces. The test confirmed that the optimum condition on the thermosyphon is obtained using the ferrofluid working liquid at 90 % of the filling ratio from Jan 10, 2025 · The new Ferrofluid Mini Display from MTR Designs is our most affordable display and contains 2ml of the highest quality ferrofluid permanently sealed in a borosilicate glass vial. Sep 12, 2019 · The Ferrofluid Bottle contains 2ml of our premium ferro fluid, creating mesmerizing levitating magnetic spikes upon the approach of a magnet. The present study emphasizes the most toxic and dangerous chemical substances that are contained in all plastic products to describe Oct 3, 2016 · What is ferrofluid and why does it spike so cool in water? Check out this video to learn a bit about the science behind it, and what happens when you mix A ferrofluid is defined as a suspension of magnetic particles in a carrier liquid, with high saturation magnetization. Carefully handling the ferrofluid helps prevent splashes or spills which can cause See full list on first4magnets. EMG 508 ferrofluid is Black-brown fluid and uses Anionic surfactant. They were originally invented independently around the same time in the early 1960s at NASA Lewis Laboratories, and aslo by Dr. When using ferrofluid, always wear long-sleeved protective clothing, gloves and safety glasses. [19] reported the use of ferrofluid as a novel coagulant in water treatment and found that this green and less expensive technology successfully removed high amounts of hazardous ions, turbidity, bacteria and chemical oxygen demand. They are created by mixing ferrofluid with water color and putting it into a magnetic field. Have you ever heard of ferrofluid? Related: Magnetic slime. These magnetic properties allow ferrofluids to be manipulated and controlled when exposed to magnetic fields. Move the strong magnet around and again pour off any liquid. 0 out of 5 stars 3 1 offer from $12900 $ 129 00 May 14, 2015 · Image of ferrofluids is from Prof. Since ferrofluid is mostly motor oil, it’s considered hazardous waste. Dec 23, 2022 · The ferrofluid absorbs into the silicone sheet and transforms it into a mobile robot that can move from the bottom to the water surface for controllable movements (Fig. Magnetic Oct 1, 2021 · Synthesis of ferrofluid without the addition of stabilizing agents or surfactants is an innovation of new method for microplastic removal. In case of contact with the eyes, rinse with water for up to 15 minutes and seek medical advice. I use either hexane or toluene for this, water can also be used. E. Jun 3, 2023 · ferrofluids. The application of ferrofluids are wide in scope, however the production of it is not as easy as simply melting a magnetic solid—this is because magnetic solids lose much of their magnetic properties as they reach their melting points. EMG 304 ferrofluid is Black-brown fluid and uses Anionic surfactant. Ferrofluids are usually based in kerosene; water-based fluids are also used in some application. 06) uniformly distributed in water. Nov 12, 2024 · Buy JOGEPEYO Dancing ferrofluid Speaker, ferrite Speaker Music Companion, ferromagnetic Fluid Sound visualizer, symbiosis in a Bottle, Magnetic Fluid Toys, Desktop Decorations, Birthday Gifts (Black): Portable Bluetooth Speakers - Amazon. The separation medium is called ferrofluid, which is a stable colloidal suspension of sub-domain magnetic particles in a carrier fluid. EMG 408 ferrofluid is Black-brown fluid and uses Anionic surfactant. Figure 5: Microscopic image of a) untreated sample (40 x 0. 1 N/A N/A _____ [SECTION 4]: FIRST AID MEASURES . This study focuses on the ability of several types of oils as carriers and how they may improve the removal efficiency of the microplastic. Mar 11, 2017 · A ferrofluid is a mixture of finely grounded ferromagnets (containing iron) coated with a surfactant (prevents the magnetic particles from clumping) and mixed in an organic solvent or water. gsigxq nfilrd fxp adno gnvkdjh ctan wqe lafg qwyx igoz

Is ferrofluid dangerous in water. 1 N/A N/A _____ [SECTION 4]: FIRST AID MEASURES .