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Once upon a time in metallurgy, folks threw just about anything into a furnace to get stubborn metals to play nice. Today, there’s a bit more science than luck involved. Aluminum-iron flux stands on this timeline as both a solution and a complication. Old foundries worked out early that basic mixes, even if unpredictable, helped cut down on impurities. Over the decades, as demand for stronger, cleaner ferrous alloys grew, researchers cooked up blends using aluminum and iron salts. Some recipes came from trial and error, others from studying patents and lessons brewed in wartime steelmaking. Metallurgists moved beyond shoveling in odds and ends. They started adjusting chemistry on purpose, targeting better slag removal and cleaner weld pools, setting the tone for what is now expected in industrial flux.
Look at a scoop of flux today. At first glance, it just looks like grains, powders, or blocks. Underneath, it holds a story of science and manufacturing convenience. Aluminum-iron flux usually relies on a blend of aluminum oxide or metallic aluminum, iron oxide, and a handful of clever additions like fluorides or silica. Not every chemist uses the same ratio, though a typical flux balances ingredients to break up stubborn oxide films and help impurities float off as slag. Once poured into a weld or smelt, the flux gets hot enough to release oxygen, react with unwanted bits, and clear the way for pure metal paths. Companies stamp out sacks or pucks under a half-dozen trade names, blending locally sourced minerals or synthetic compounds, skipping the fillers and dust where possible. These products carry specifications that push for controlled melting points, minimal water pickup, and predictable results in either automated or hand-applied operations.
Not all flux is created for the same job, and you see it in their properties. The densities hover around values that let the stuff mix into molten metal without either sinking like a stone or boiling off before doing its job. Most brands aim for a product that flows well and stays stable during storage, resisting those frustrating clumps from humidity. On the chemical side, the reactivity wants to be strong enough to clean up oxides but not overcook the weld pool. Good aluminum-iron fluxes don’t spit out harmful fumes at reasonable working temperatures, staying inside safe whiffs and avoiding noxious compounds as much as the blend allows. Physical strength, granule size, and color don’t matter much to anyone but the folks pushing it through factory hoppers or tightening quality control on powder feeders.
Over the years, technical labeling for aluminum-iron flux drifted from cryptic shorthand toward more practical, honest reporting. Buyers scan for melting points that fit their furnaces, check mineralization data for its readiness to handle local ores, and hope for as few mystery “additives” as possible. Modern labeling stays under watch by standards outfits, especially in regions with big steelmaking economies. Some specs stretch into pages of details, chasing compliance with environmental and safety rules. The hope is, that what reads on paper translates into safe and efficient performance. Labels spell out safe handling, warn against mixing with things that spark, and nudge end users toward protective gear. Not every supplier lists every trace impurity, so full disclosure is something buyers still push for. Even with better transparency, the real world sometimes tosses out surprises, making it critical for workers and managers alike to lean on experience, not just paperwork.
The process that spits out flux in modern factories calls for more than just dumping bags of minerals into a mixer. Raw ingredients pass through crushers and grinders, then blend in large paddles or drum mixers that watch moisture and keep things homogeneous. Some manufacturers fire the blend in kilns, forcing out water and setting the right phase of each chemical. This step serves two purposes: boosting shelf stability and encouraging predictable reactivity during use. Others use chemical reactions in-situ, producing a ready-to-pour compound. At the end, each batch lands in a pile for packaging, and not a single grain gets shipped without passing basic checks for moisture and consistency. Batch testing stands at the door to make sure nothing explodes, poofs, or corrodes before it reaches its final home. That said, not all batch outputs are perfect; dust, unexpected blending ratios, or temperature hiccups lead to recalls or on-site reblending.
Throwing flux into molten metal isn’t magic. It triggers practical chemistry — aluminum reacts with oxides, reducing them to metals and floating unwanted parts out with the slag. Iron in the mix can buffer temperature swings, and keep heat distribution smooth. Engineers tune the flux with other additions like calcium fluoride, borates, or sodium compounds to handle specifics like sulfur removal or lower melting points. These side tweaks introduce risks: an over-treated melt might spit or foam, while some recipes can boost unwanted byproducts if not dialed in carefully. The classic reaction pulls oxygen from stubborn rust, dumps it into less reactive slag, and leaves metal bonds cleaner for casting or welding. Plant chemists stay glued to the numbers, knowing every modification to the blend tweaks efficiency, cost, or even long-term corrosion resistance of finished products.
Anyone shopping for aluminum-iron flux soon comes across a parade of synonyms: “alumino-ferric flux,” “Fe-Al weld blend,” or “alumiron flux” jump out on trade lists. Global shipments wind up under more regional names, especially where language or legacy holds influence. These products often share a core chemical profile but may tweak minor components or claim proprietary tweaks. Some companies chase brand recognition, slapping on green, silver, or code-numbered labels. For a buyer or plant manager, experience with one brand rarely translates without testing or small-batch trials on new ones, since small changes — even in packaging or grain size — can cause unexpected headaches in large-scale processes.
Safety can’t take a back seat in flux handling. Dust turns into a threat in closed spaces; airborne particles lead to respiratory irritation after a few hours without proper masks or fume hoods. Warehouse staff learn quickly to check for leaks, and welders respect warnings about adding flux slowly to avoid flashes or spattering. Aluminum dust, especially, lands on lists for potential fire hazard in bulk shipments. Workers rely on age-old habits — good gloves, closed footwear, no eating or drinking around mixing or storage. Clean-up procedures after spills or failed batches matter as much as careful pouring. Despite better labeling and more safety sheets, old risks hang around where shortcuts get taken. Insurers and regulators both keep tabs on facilities using aluminum-iron flux, not just for fire codes, but for exposure limits and waste management practices. Outdated handling steps or dismissing warning labels too often spark problems that could have been solved with a little more upfront care.
Welders and metal casters often treat flux as a background player, but it belongs center stage in modern steel and alloy production. The stuff steps up where high-purity or tough-to-weld metals matter — pipelines, heavy machinery, automobile parts, or infrastructure joints. Steel recycling centers count on aluminum-iron flux to scavenge tricky impurities, stretching the life cycle of scrap without lowering quality on the next use. The same goes for advanced additive manufacturing or 3D metal printing, which lean on clean feedstocks to keep parts strong and failures few. In the world of development, flux comes up in conversations around green steel and stainless alloys for food, transport, or energy. As industries push for fewer weld defects and cleaner, faster output, even the most basic formulations keep getting small tweaks to fit new requirements or tackle regulations.
Research teams in university labs and private industry work to improve these mixes with more than just efficiency in mind. Efforts focus on minimizing hazardous components, rethinking the environmental impact tied to fluoride and barium compounds, and chasing blends that yield less slag waste. Advanced computational chemistry and trial runs help identify recipes that strip oxides faster or work at lower energy inputs, helping factories cut carbon footprints. In some cases, researchers screen for biocompatible additives for specialty uses like medical-grade steel. Others consider byproducts — finding ways to recycle leftover slag or reuse spent flux in concrete, ceramics, or roadbeds instead of sending it to landfills. Funding keeps flowing, especially for projects that align with national clean energy or waste reduction strategies. In the industrial world, even a small boost in flux efficiency translates into millions in savings or tons in emission cuts over a year.
Aluminum-iron flux gets the job done but rarely escapes questions about health and environmental safety. Inhaling fine powders creates known risks, linked in the literature to lung irritation or, with chronic exposure, more serious respiratory disease. Scrutiny also falls on byproducts — certain blends release gases or leave residues that could leach heavy metals into soil or water if disposal isn’t handled carefully. Regulations push for lower thresholds of risky elements like lead, chromium, or fluorine compounds. Researchers keep tracking and publishing data, noting that workers show better outcomes in facilities with strict safety protocols, good training, and reliable monitoring. Scientists continue searching for components that offer strong deoxidation without lingering in wastewater or settling as hazardous landfill. Transparency from manufacturers helps buyers and environmental managers stay ahead of hidden dangers, but field experience suggests surprise still lurks, especially in developing regions with limited enforcement or worker education.
No amount of tradition or habit lets the flux world stand still. Advances in automation push for more consistent and traceable blends — smart hoppers, real-time melt chemistry checks, feedback loops that tweak dosing mid-process. Digital tracking lets batch histories travel from plant to plant, connecting causes and fixes for issues that once took months to diagnose. Companies experiment with additives that lower overall temperature needs, aiming to stretch resources and slice emissions. Environmental pressures guide the push for cleaner, safer alternatives that do the job with fewer leftovers or landfill output. As energy goals and material purity standards tighten, makers and users of aluminum-iron flux face new challenges in both quality and ethics. Stubborn as the industry sometimes seems, the people making, selling, and using flux show a knack for adaptation, and every tweak or upgrade comes not just from necessity, but from the work and observation of generations of skilled hands and sharp eyes.
I’ve spent years around welding shops and scrap yards, and every time someone asks about fluxes, I start picturing those neat piles of powder that make metals behave in ways they wouldn’t on their own. Aluminum-iron flux steps in as a helping hand for metal workers, especially during the production and repair of aluminum-based products. Some folks think of it as just another ingredient, but in reality, it keeps the whole melting and joining process cleaner, smoother, and a lot less wasteful.
Aluminum loves oxygen. That means lots of aluminum oxide builds up fast, and this oxide layer refuses to melt or blend like the pure metal does. Melting aluminum with iron brings in challenges—unwanted compounds appear, and the process can get messy. Here’s where aluminum-iron flux comes in. It clears the way for pure metal by dissolving those stubborn oxides and making sure different metals actually stick together.
In my early days working in a foundry, nothing slowed us down like a batch ruined by clumps of oxide or slag, floating around the crucible. With flux, we’d watch those impurities gather on the surface, scoop them off, then keep pouring. Every pound of product became more valuable because we lost less to impurities. According to the American Welding Society, using proper fluxes like these cuts material waste by up to 15%.
The auto industry leans hard on this stuff. Car makers rely on aluminum parts for lighter frames. But to get parts with strong, clean welds, flux has to come into play. I’ve watched old-school body shops use the wrong flux and end up with joints that looked fine but cracked under stress. The right mix ensures new cars roll out with safer, longer-lasting frames.
It’s not just cars—aircraft and construction sectors use flux to bond aluminum and steel parts. Smelters working with scrap metals toss in flux to get rid of junk and recover more pure metal, especially from recycled cans or siding. The Aluminum Association notes that the recycling sector benefits from flux since it raises recovery rates and improves the purity of the new metal.
There’s a catch: a poorly chosen flux can introduce its own issues, like corrosive residue left behind. That eats away at the strength of the weld and poses safety risks. I’ve seen operators skip clean-up, only to realize months later that the pipe they fixed started leaking. So, picking the right flux for the job matters as much as the welding skill itself.
Better training helps here. Manufacturers post guides on safe flux use, but not everyone follows them. Mandating more certification for operators could save money down the line by preventing repairs or scrap. New research looks at less toxic flux formulas—greener options that protect both workers and the environment. MIT engineers, for example, have published work on fluxes that melt at lower temperatures and leave fewer contaminants.
The bottom line: aluminum-iron flux plays a hidden but vital role in everything from beer cans to bridges. Applying it with care saves costs, boosts safety, and lifts product quality. The more folks understand the process—and the risks of sidestepping good practices—the better results we see from the recycling center up to the biggest machinery on the highway.
Working with different fluxes means facing a series of storage headaches and Aluminum-Iron Flux is one of those products where careless storage turns bad quickly. Many small shops and bigger industrial users alike tuck away their bags and barrels wherever there's open floor space, but I've watched the difference just a few weeks’ exposure to humidity and air can make. Nobody likes opening a pail to find chunks or clumps that take forever to break up—or worse, discovering spilled powder that’s almost impossible to sweep up without turning it into a bigger mess. Keeping things dry, sealed, and sheltered isn’t overkill; it’s practical necessity. Exposed flux absorbs moisture, making it useless for clean welds or efficient refining, and humidity in the air will also speed up corrosion for containers and equipment.
Aluminum-Iron Flux reacts to moisture in the atmosphere, and that means a leaky bag or forgotten open-topped bucket can ruin a whole batch faster than you’d think. I’ve seen even careful operators lose hundreds of dollars’ worth of product this way, just from storing it too close to a loading dock or in a room with a leaky ceiling after a storm. Sealed plastic containers or full-barrel drums with tight-fitting lids are the only way to go if you want to keep it usable over the long run. Silica gel packets tossed inside help, but the most important thing is keeping warehouse floors and shelf spaces dry. If water can get in, so can trouble.
Spills should be handled right away. Unlike dropping something like sand, spilled Aluminum-Iron Flux can get slippery fast and turn into a paste if swept up carelessly. At one plant, we learned this lesson on a rainy day when muddy flux from a spill combined with a little oil made a section of the floor dangerous to walk on. Always use non-sparking scoops or shovels—never just a broom. Any spilled powder goes into a dedicated waste drum for safe disposal. Employees appreciate the gesture; nobody likes unnecessary hazards sneaking up during a busy shift.
Some folks assume flux is just another “safe chemical,” but certain types—including those with metallic iron or aluminum—react aggressively when exposed to the wrong stuff. Storing it too close to acids, bases, flammable liquids, or oxidizers can put you in a bind fast. One misstep from storing it next to incompatible chemicals and the risk of fire or toxic fumes rises. Always label storage bins clearly with warnings and follow local safety codes. Lockup shelves behind marked doors keeps curious hands away, especially where untrained workers or visitors roam.
Inventory slips out of control when employees grab what they need and forget to sign out new bags. Routine counts and signing off on opened containers helps reduce waste. Unlabeled bags gather dust in corners, and if it’s not clear what’s inside, there’s a real chance it gets used incorrectly. Keep clear records, mark all bags and drums—I have used color-coded tape and big, bold markers—and train everyone handling the stuff. Hand and eye protection are a must, no shortcuts. I’ve seen small flakes irritate skin and eyes after a quick pour from a torn bag, so basic PPE still matters in workplaces where experience tends to lead to skipping steps.
Proper storage isn’t just a set of rules for compliance—done well, it protects equipment, products, and people. It’s simple: dry containers, well-marked storage, frequent checks, and a quick response to spills save both money and headaches. Small steps day to day stack up, and in my experience, overlooking a few basics leads to bigger problems before long. Treat Aluminum-Iron Flux with the same care you bring to the rest of your process—and things will go a lot smoother in the long run.
Anyone who’s spent time in a foundry, metal shop, or even an industrial arts class knows this: aluminum-iron flux can make work easier, but it brings risks that deserve serious respect. I remember my first encounter with flux in a cramped shop, the air thick with sharp odors and distraction everywhere. Routines save skin from burns and lungs from hidden dangers, but only if everyone sticks to them every single time.
This powdered mix doesn’t just settle on benches; it clings to hands, tools, and anything else along the way. It contains compounds that react quickly with water and acids, often releasing gases you wouldn’t want to breathe. Accidental spills bring slip hazards, but far worse, clouds of flux dust can irritate both skin and eyes, even long after the shovels and ladles have gone cold. My colleague once brushed off flecks from a glove, and the result was a rash that itched for days.
I don’t care if it feels awkward—nothing beats a fitted pair of chemical-resistant gloves and long-sleeve gear. After seeing a close call with a shirt sleeve and a heap of spilled powder, I’ve kept my arms covered, whatever the weather. Face shields block splashes, and splash goggles matter more than many folks admit. An N95 mask or, in busy shops, a full-face respirator steps up protection, especially when handling big batches. These tools aren’t for show; they’re there because one bad inhale or splash can sideline you for weeks.
Good airflow means less build-up of dangerous fumes and dust. Shops doing any serious flux work focus on local exhaust ventilation—overhead fans and downdraft tables help pull vapors away from breathing space. Some shop managers run a visual check: if the air looks hazy mid-morning, it’s time to take a break and rethink controls. Opening a window only gets you so far, especially during winter or on a crowded shift.
Dust gets everywhere, so sealed containers keep flux in and moisture out. Dry rooms with solid shelves cut down on accidental humidity or mixing with the wrong chemicals. I saw a bucket left open once, and it only took a bit of overnight moisture for the contents to clump and become useless. Every shop benefits from regular cleanups, since powder can drift into corners where it’s easy to forget until trouble starts.
People learn fastest when they hear real stories, not just lists from a binder. I make sure newcomers handle a small batch under watch, then talk through what can go wrong—burns, coughs, and why eye washes matter. Regular drills and question sessions keep everyone sharp. If someone spots a shortcut, it’s better to call it out than let silence put folks at risk.
Old flux, spoiled mixtures, or dregs from a crucible belong in hazardous waste, not the regular bins. A call to local regulators saves headaches with fire marshals or environmental fines down the road. One afternoon cleaning out a storage locker convinced me that proper labeling and logging aren’t just bureaucratic—they’re a shield against bigger mishaps.
Nothing replaces daily attention. Gloves get checked before and after use. Bags and containers receive a wipe-down before stowing. The best teams set aside time at the end of every shift to check for hazards—and trust me, a few extra minutes here beats spending hours at the clinic.
Anyone who has ever welded or brazed aluminum knows just how stubborn that thin oxide layer can be. It’s a barrier that refuses to give way easily, no matter how clean the metal looks to the naked eye. This oxide film melts at a temperature much higher than aluminum itself, which is where aluminum-iron flux steps into the spotlight. Experienced welders have watched firsthand as a joint that looks picture-perfect on the outside falls apart because someone skipped the right flux or used too little of it.
Every time you melt aluminum, oxygen in the air tries to bond with it. The result is that pesky oxide, tough as old boots and thicker if the material sits out too long. Trying to weld or braze without the proper flux means trusting that your torch alone will strip that oxide. Anyone who’s tried that approach gets a harsh lesson: the filler metal simply pools on top instead of wetting the base metal, creating weak, unreliable joints that often corrode fast or even come apart under mild vibration.
Practical use of aluminum-iron flux starts with understanding that too much or too little makes a big difference. More seasoned tradespeople often sprinkle or brush flux powder directly onto the cleaned aluminum right before heating. Some prefer a premixed paste for more control, which sticks better and helps protect from air during the crucial first moments of heating. The right amount covers the entire joint area, forming a thin layer. If you see clumps or uneven spots, you’re either using too much or not distributing it well enough.
During brazing, after flux coats the joint, heat follows. The flux melts before the base metal or filler does, breaking down that tough oxide. Most aluminum-iron fluxes contain a blend of chlorides and fluorides. These ingredients chemically dissolve the oxide barrier and let the filler metal spread right into the joint. It’s easy to spot when flux is working — the joint becomes shiny, and the filler flows naturally, almost like it’s drawn by a magnet into even narrow gaps.
The fumes from flux can sting your nose or eyes, and people in the shop sometimes end up sneezing or coughing if the extractor isn’t running. Nobody wants to trade health for a solid weld. Going with proper ventilation, gloves, and eye protection stays non-negotiable. Careful shops also clean up the flux residue right after finishing a joint. Most of these blends attract moisture, so any leftover on the part can lead to nasty corrosion over time, sometimes even within a day or two. A simple scrub with water and a wire brush gets most residues off, keeping the piece clean and ready for painting or further assembly.
As anyone in welding or metalwork learns quickly, not all fluxes behave the same way. Some jobs need a high-activity flux for thick or older aluminum, while cleaner, newer pieces get the job done with a milder blend. Switching between brands to find the one that gives reliable flow and cleans off easily cuts down time and frustration. With advances in chemistry, newer flux formulas aim to be less corrosive and produce fewer fumes. These changes matter, especially for teams working in tighter spaces or high-volume shops.
Years of experience on the bench prove that skipping the right flux never pays off. Aluminum-iron flux serves as more than a tool — it’s the difference between a project that stands the test of time and one that fails quietly at the seams.
Mixing the right metals with aluminum-iron flux sends metalworkers down plenty of rabbit holes. Not every metal plays nicely with this blend. In my years on shop floors and reading research papers, it’s clear that results swing wildly by what you toss into the pot. There’s a common urge to test out whatever’s on the shelf, but experience saves a lot of headaches. Not every combination helps your process or wallet.
Aluminum-iron blends go into many mixes for foundries and recycling outfits. This flux clears oxides off molten metal in metal casting. On its own, that’s useful for many alloys. Yet you never see shops mixing it with every element they have on hand. Aluminum and iron carry a reactive streak, which pushes certain other metals to break apart, form poor grain structures, or even poison a melt’s workability.
Plenty of zinc slips into aluminum alloy melts with this flux. Brass makers or die casters know the benefits well. Zinc’s low melting point and strong linking properties pair well here — the flux prevents the aluminum’s hard oxide shell from fouling up bonding. Silicon fits into this crew too, especially in alloys meant for automotive or aerospace applications. It sacrifices a little ductility but helps flow and workability, while the flux keeps oxides to a minimum.
Some plants add copper to boost strength, especially for parts like bushings or connectors. Things turn tricky when the ratio gets too high. Aluminum mixes with copper only within narrow margins before you see unwanted phases, like brittle intermetallics popping up in the ingot. The flux handles most oxides, but can’t force copper into perfect harmony if the chemistry strays too far from the recommended ratios. Good notes and temperature control decide the difference between a tough part and a paperweight.
Magnesium brings weight-cutting power to a casting. Yet, aluminum-iron flux can fire off aggressive reactions with magnesium. Excessive burn-off, unwanted dross, and violent fizzing jump out fast. A magnesium-content alloy like AZ91 calls for softer fluxes built around potassium or sodium salts. Using the wrong flux chews up both yield and safety; most experts I know steer clear of heavy magnesium mixes with aluminum-iron blends.
Lead once marched into blends to help machinability, but toxic fumes and environmental rules slammed the brakes. Tin – useful for low-friction properties – brings its own headaches, from segregation to “hot shortness.” Nickel and chromium, darlings of stainless steel, stubbornly resist the cleaning power of aluminum-iron flux, and can cause hard spots and strange veining.
Shops aiming for solid weld joints or casting have learned to focus on the blend. Checking manufacturer data, old test notes, and consulting metallurgists beats charge-ahead-and-hope. Plenty of defects turn up from ignoring these guidelines. Getting the melt just a few degrees too hot can turn a promising run into scrap. Shops that survive in tough markets rarely take shortcuts with their fluxes – they document, sample, tweak, and repeat.
For anybody dealing with aluminum-iron flux, zinc, silicon, and measured copper consistently show up as winners. Some specialty blends get by with minute amounts of rare metals, but they never slip outside the lines decided by years of benchwork and big-factory practice. Good metallurgy still ties back to picking compatible metals, running tests, and double-checking every step.
| Names | |
| Preferred IUPAC name | Aluminium iron oxide |
| Other names |
Aluminum-iron mixed flux Al-Fe flux Aluminum-iron alloy flux |
| Pronunciation | /əˌluːmɪnəm ˈaɪərn flʌks/ |
| Identifiers | |
| CAS Number | 12012-35-0 |
| Beilstein Reference | 3589466 |
| ChEBI | CHEBI:53344 |
| ChEMBL | CHEMBL4297864 |
| ChemSpider | 3434362 |
| DrugBank | DB11132 |
| ECHA InfoCard | ECHA InfoCard: 100.044.335 |
| EC Number | EC 215-691-6 |
| Gmelin Reference | Gmelin Reference: 13, 142 |
| KEGG | C18949 |
| MeSH | D000687 |
| PubChem CID | 86394744 |
| RTECS number | BP9770000 |
| UNII | 8T4OS62ZQ3 |
| UN number | UN3264 |
| Properties | |
| Chemical formula | AlF3·Fe2O3 |
| Molar mass | 98.00 g/mol |
| Appearance | White powder |
| Odor | Odorless |
| Density | 2.95 g/cm³ |
| Solubility in water | Insoluble |
| log P | -0.298 |
| Vapor pressure | Negligible |
| Basicity (pKb) | 8.55 |
| Magnetic susceptibility (χ) | -0.9 × 10⁻⁶ |
| Refractive index (nD) | 1.43 |
| Viscosity | Viscosity: 1.4 cP |
| Dipole moment | 0 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 108 J/mol·K |
| Pharmacology | |
| ATC code | V07CX |
| Hazards | |
| Main hazards | Harmful if swallowed. Causes serious eye irritation. Causes skin irritation. May cause respiratory irritation. |
| GHS labelling | GHS02, GHS07, Signal word: Warning, Hazard statements: H228, H315, H319, H335 |
| Pictograms | GHS05,GHS07 |
| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | Precautionary statements: Keep container tightly closed. Store in a cool, dry place. Avoid breathing dust. Use only with adequate ventilation. Wear suitable protective clothing, gloves, and eye/face protection. Wash thoroughly after handling. |
| NFPA 704 (fire diamond) | Health: 2, Flammability: 0, Instability: 1, Special: --- |
| Lethal dose or concentration | LD50 (oral, rat): >2000 mg/kg |
| LD50 (median dose) | LD50 (median dose): Oral-rat LD50: >2000 mg/kg |
| NIOSH | No NIOSH. |
| PEL (Permissible) | 15 mg/m3 |
| REL (Recommended) | REL (Recommended): 2 mg/m³ |
| IDLH (Immediate danger) | Not established |
| Related compounds | |
| Related compounds |
Aluminum flux Aluminum welding Aluminum-boron master alloy Ferroaluminum Soldering flux Zinc-aluminum flux Aluminum-silicon flux |
